Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds

Industry

CPC
C08G73/1042

This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

CCHEMISTRY METALLURGY C08Organic compounds C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00

Current Industry

C08G73/1042Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds

Industries

Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal light control element
- Patent number 11,966,120
- Issue date Apr 23, 2024
- Nissan Chemical Corporation
- Kanako Suzuki
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Polyamideimide film and flexible display panel including the same
- Patent number 11,960,159
- Issue date Apr 16, 2024
- SK Innovation Co., Ltd.
- Hyeon Jeong Kim
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Macroporous-structured polymer aerogels
- Patent number 11,945,929
- Issue date Apr 2, 2024
- BLUESHIFT MATERIALS, INC.
- Garrett Poe
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Polyamic acid, varnish containing same, film, touch panel display,...
- Patent number 11,945,911
- Issue date Apr 2, 2024
- Mitsui Chemicals, Inc.
- Masaki Okazaki
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Polyimide substrate, manufacturing method thereof, and display subs...
- Patent number 11,926,704
- Issue date Mar 12, 2024
- WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
- Yamin Wang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Black matte polyimide film
- Patent number 11,926,705
- Issue date Mar 12, 2024
- Taimide Technology Incorporation
- Yi-Hsueh Ho
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Highly heat-resistant and low dielectric-polymide film and method f...
- Patent number 11,905,372
- Issue date Feb 20, 2024
- PI Advanced Materials Co., Ltd.
- Sung-Yul Back
- B32 - LAYERED PRODUCTS
Information Patent Grant
Poly(amide-imide) copolymer, composition for preparing poly(amide-i...
- Patent number 11,898,012
- Issue date Feb 13, 2024
- Samsung Electronics Co., Ltd.
- A Ra Jo
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Photosensitive polyimide compositions
- Patent number 11,899,364
- Issue date Feb 13, 2024
- Fujifilm Electronic Materials U.S.A., Inc.
- Binod B. De
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Polyimide film for display substrate
- Patent number 11,891,483
- Issue date Feb 6, 2024
- LG Chem, Ltd.
- Jinyoung Park
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymer composition
- Patent number 11,866,551
- Issue date Jan 9, 2024
- NISSAN CHEMICAL CORPORATION
- Masamichi Nishihara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Preparation method of insulating dielectric for improving energy de...
- Patent number 11,854,718
- Issue date Dec 26, 2023
- XI'AN JIAOTONG UNIVERSITY
- Yang Feng
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Polyamic acid solutions, polyimide films and electronic devices
- Patent number 11,834,561
- Issue date Dec 5, 2023
- DUPONT ELECTRONICS, INC.
- Ming-Siao Hsiao
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Hybrid membranes with functionalized fillers for natural gas sweete...
- Patent number 11,834,619
- Issue date Dec 5, 2023
- Saudi Arabian Oil Company
- Yang Liu
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Separation membrane comprising coating layer, method of preparing s...
- Patent number 11,814,483
- Issue date Nov 14, 2023
- Samsung SDI Co., Ltd.
- In Sik Jeon
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Composition for forming polyimide film for cover window, method for...
- Patent number 11,807,730
- Issue date Nov 7, 2023
- SK Innovation Co., Ltd.
- Cheol Min Yun
- B32 - LAYERED PRODUCTS
Information Patent Grant
Liquid crystal alignment agent and preparation method thereof, liqu...
- Patent number 11,807,794
- Issue date Nov 7, 2023
- SHENZHEN DALTON ELECTRONIC MATERIAL CO., LTD
- Shenglin Wang
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Polyimide based film for cover window and display device comprising...
- Patent number 11,795,271
- Issue date Oct 24, 2023
- SK Innovation Co., Ltd.
- Cheol Min Yun
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photosensitive polyimide compositions
- Patent number 11,782,344
- Issue date Oct 10, 2023
- Fujifilm Electronic Materials U.S.A., Inc.
- Sanjay Malik
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Polymer having a structure of polyamide, polyamide-imide, or polyim...
- Patent number 11,768,434
- Issue date Sep 26, 2023
- Shin-Etsu Chemical Co., Ltd.
- Katsuya Takemura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Anisotropic copoly(imide oxetane) coatings and articles of manufact...
- Patent number 11,760,738
- Issue date Sep 19, 2023
- United States of America as Represented by the Adminstrator of NASA
- Christopher J. Wohl
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Monomer, polymer, compensation film, optical film, and display device
- Patent number 11,702,509
- Issue date Jul 18, 2023
- Samsung Electronics Co., Ltd.
- Dmitry Androsov
- G02 - OPTICS
Information Patent Grant
Methods of manufacture for polyetherimide
- Patent number 11,692,062
- Issue date Jul 4, 2023
- SHPP Global Technologies B.V.
- Dadasaheb V. Patil
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid crystal alignment agent composition, method of preparing liq...
- Patent number 11,667,843
- Issue date Jun 6, 2023
- LG Chem, Ltd.
- Seongku Kim
- G02 - OPTICS
Information Patent Grant
Polyimide film for preparing roll type graphite sheet
- Patent number 11,655,336
- Issue date May 23, 2023
- SKCKOLONPI INC.
- Dong Young Won
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide films and electronic devices
- Patent number 11,643,514
- Issue date May 9, 2023
- DUPONT ELECTRONICS, INC.
- Ming-Siao Hsiao
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Flexible substrate and method of manufacturing same
- Patent number 11,626,038
- Issue date Apr 11, 2023
- SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
- Linshuang Li
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Polyimide film, laminate and surface material for display
- Patent number 11,566,108
- Issue date Jan 31, 2023
- Dai Nippon Printing Co., Ltd.
- Katsuya Sakayori
- B32 - LAYERED PRODUCTS
Information Patent Grant
Electrochromic polyamic acid material, preparation method thereof,...
- Patent number 11,537,020
- Issue date Dec 27, 2022
- WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
- Yamin Wang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Reactive end group containing polyimides and polyamic acids and pho...
- Patent number 11,535,709
- Issue date Dec 27, 2022
- PROMERUS, LLC
- Pramod Kandanarachchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
POLYAMIC ACID VARNISH
- Publication number 20240150611
- Publication date May 9, 2024
- PI Advanced Materials Co., Ltd.
- Min Seok YANG
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POLYIMIDE-BASED POLYMER FILM, SUBSTRATE FOR DISPLAY DEVICE, AND OPT...
- Publication number 20240092974
- Publication date Mar 21, 2024
- LG CHEM, LTD.
- Mi Eun KANG
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
FLEXIBLE DISPLAY PANEL
- Publication number 20240099076
- Publication date Mar 21, 2024
- WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
- Guoqiang YANG
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Optically Transparent Polyimide
- Publication number 20240059839
- Publication date Feb 22, 2024
- Sumitomo Chemical Company, Limited
- Kelby Hull
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
INSULATED ELECTRICAL WIRE AND PRODUCTION METHOD THEREFOR
- Publication number 20240052199
- Publication date Feb 15, 2024
- Sumitomo Electric Industries, Ltd.
- Hideaki SAITO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POLYIMIDE-BASED RESIN FILM, SUBSTRATE FOR DISPLAY DEVICE, AND OPTIC...
- Publication number 20240034848
- Publication date Feb 1, 2024
- LG CHEM, LTD.
- Ye Ji HONG
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYIMIDE FILM HAVING HIGH DIMENSIONAL STABILITY AND MANUFACTURING...
- Publication number 20240026098
- Publication date Jan 25, 2024
- PI Advanced Materials Co., Ltd.
- Dong-Young KIM
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
HIGH-MODULUS BLACK MATTE POLYIMIDE FILM
- Publication number 20230416480
- Publication date Dec 28, 2023
- Taimide Technology Incorporation
- CHUN-HUA LI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Polyimide Precursor Composition and Optical Multilayer Structure Fo...
- Publication number 20230374344
- Publication date Nov 23, 2023
- SK INNOVATION CO., LTD.
- Cheol Min Yun
- B32 - LAYERED PRODUCTS
Information Patent Application
OPTICAL FILM INCLUDING POLYMER RESIN HAVING EXCELLENT DEGREE OF POL...
- Publication number 20230374219
- Publication date Nov 23, 2023
- KOLON INDUSTRIES, INC.
- Doo Li CHOI
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
RESIN COMPOSITION AND ARTICLE MADE THEREFROM
- Publication number 20230331916
- Publication date Oct 19, 2023
- ELITE MATERIAL CO., LTD.
- Tse-Hung LIU
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
ULTRA-HIGH MODULUS AND HIGH-TRANSMITTANCE POLYIMIDE THIN FILM, AND...
- Publication number 20230303786
- Publication date Sep 28, 2023
- RAYITEK HI-TECH FILM COMPANY, LTD., SHENZHEN
- Zhenzhong Wang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYMER COMPOSITIONS AND COATING SOLUTIONS
- Publication number 20230279262
- Publication date Sep 7, 2023
- DUPONT ELECTRONICS, INC.
- KOSTANTINOS KOURTAKIS
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POLYIMIDE RESIN
- Publication number 20230279226
- Publication date Sep 7, 2023
- Nan Ya Plastics Corporation
- Te-Chao Liao
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Polyimide Precursor Composition and Polyimide Film Produced Using t...
- Publication number 20230257525
- Publication date Aug 17, 2023
- SK INNOVATION CO., LTD.
- Cheol Min Yun
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POLYIMIDE FILM AND METAL-LINED LAYERED SHEET
- Publication number 20230242708
- Publication date Aug 3, 2023
- NITTO DENKO CORPORATION
- Kei MISHIMA
- B32 - LAYERED PRODUCTS
Information Patent Application
POLYAMIC ACID SOLUTIONS, POLYIMIDE FILMS AND ELECTRONIC DEVICES
- Publication number 20230235139
- Publication date Jul 27, 2023
- DUPONT ELECTRONICS, INC.
- Ming-Siao HSIAO
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYIMIDE PRECURSOR PREPARED BY USING POLYCYCLIC MONOMER INCLUDING...
- Publication number 20230220161
- Publication date Jul 13, 2023
- KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
- Sang-Youl KIM
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
LAYERED PRODUCT INCLUDING HIGH TEMPERATURE-RESISTANT TRANSPARENT FILM
- Publication number 20230211584
- Publication date Jul 6, 2023
- Toyobo Co., Ltd.
- Tetsuo OKUYAMA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYIMIDE-BASED COMPOSITION AND POLYIMIDE FILM
- Publication number 20230203249
- Publication date Jun 29, 2023
- DONGJIN SEMICHEM CO., LTD.
- Jae Hoon JUNG
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
AIR PERMEABLE FILTER MATERIAL COMPRISING A POLYMER AEROGEL
- Publication number 20230201800
- Publication date Jun 29, 2023
- BLUESHIFT MATERIALS, INC.
- Marisa SNAPP-LEO
- A41 - WEARING APPAREL
Information Patent Application
MONOMER AND POLYMER, COMPENSATION FILM, OPTICAL FILM, AND DISPLAY D...
- Publication number 20230192592
- Publication date Jun 22, 2023
- Samsung Electronics Co., Ltd.
- Dmitry ANDROSOV
- C07 - ORGANIC CHEMISTRY
Information Patent Application
MULTILAYER BODY COMPRISING HIGHLY HEAT-RESISTANT TRANSPARENT FILM
- Publication number 20230173800
- Publication date Jun 8, 2023
- Toyobo Co., Ltd.
- Tetsuo OKUYAMA
- B32 - LAYERED PRODUCTS
Information Patent Application
BRANCHED AMORPHOUS POLYAMIDE (CO)POLYMERS AND METHODS OF MAKING AND...
- Publication number 20230167243
- Publication date Jun 1, 2023
- 3M Innovative Properties Company
- Rajdeep S. Kalgutkar
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
LIQUID CRYSTAL ALIGNMENT AGENT AND PREPARATION METHOD THEREOF, LIQU...
- Publication number 20230167365
- Publication date Jun 1, 2023
- SHENZHEN DALTON ELECTRONIC MATERIAL CO., LTD
- Shenglin WANG
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
FIXING BELT
- Publication number 20230151182
- Publication date May 18, 2023
- I.S.T. CORPORATION
- Akimasa YOSHIMOTO
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYIMIDE-BASED POLYMER FILM, SUBSTRATE FOR DISPLAY DEVICE, CIRCUIT...
- Publication number 20230132166
- Publication date Apr 27, 2023
- LG CHEM, LTD.
- Min Wook LEE
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Diamine, Polymer and Film Produced Using the Same
- Publication number 20230123199
- Publication date Apr 20, 2023
- SK INNOVATION CO., LTD.
- Hyun Kyu Cho
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
SEPARATION MEMBRANE AND METAL ORGANIC FRAMEWORK
- Publication number 20230112816
- Publication date Apr 13, 2023
- NITTO DENKO CORPORATION
- Akira SHIMAZU
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
LOW-COLOR POLYMERS FOR USE IN ELECTRONIC DEVICES
- Publication number 20230074583
- Publication date Mar 9, 2023
- DUPONT ELECTRONICS, INC.
- Brian C. Auman
- G02 - OPTICS

Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Liquid crystal light control element

Polyamideimide film and flexible display panel including the same

Macroporous-structured polymer aerogels

Polyamic acid, varnish containing same, film, touch panel display,...

Polyimide substrate, manufacturing method thereof, and display subs...

Black matte polyimide film

Highly heat-resistant and low dielectric-polymide film and method f...

Poly(amide-imide) copolymer, composition for preparing poly(amide-i...

Photosensitive polyimide compositions

Polyimide film for display substrate

Polymer composition

Preparation method of insulating dielectric for improving energy de...

Polyamic acid solutions, polyimide films and electronic devices

Hybrid membranes with functionalized fillers for natural gas sweete...

Separation membrane comprising coating layer, method of preparing s...

Composition for forming polyimide film for cover window, method for...

Liquid crystal alignment agent and preparation method thereof, liqu...

Polyimide based film for cover window and display device comprising...

Photosensitive polyimide compositions

Polymer having a structure of polyamide, polyamide-imide, or polyim...

Anisotropic copoly(imide oxetane) coatings and articles of manufact...

Monomer, polymer, compensation film, optical film, and display device

Methods of manufacture for polyetherimide

Liquid crystal alignment agent composition, method of preparing liq...

Polyimide film for preparing roll type graphite sheet

Polyimide films and electronic devices

Flexible substrate and method of manufacturing same

Polyimide film, laminate and surface material for display

Electrochromic polyamic acid material, preparation method thereof,...

Reactive end group containing polyimides and polyamic acids and pho...

Patents Applicationslast 30 patents

POLYAMIC ACID VARNISH

POLYIMIDE-BASED POLYMER FILM, SUBSTRATE FOR DISPLAY DEVICE, AND OPT...

FLEXIBLE DISPLAY PANEL

Optically Transparent Polyimide

INSULATED ELECTRICAL WIRE AND PRODUCTION METHOD THEREFOR

POLYIMIDE-BASED RESIN FILM, SUBSTRATE FOR DISPLAY DEVICE, AND OPTIC...

POLYIMIDE FILM HAVING HIGH DIMENSIONAL STABILITY AND MANUFACTURING...

HIGH-MODULUS BLACK MATTE POLYIMIDE FILM

Polyimide Precursor Composition and Optical Multilayer Structure Fo...

OPTICAL FILM INCLUDING POLYMER RESIN HAVING EXCELLENT DEGREE OF POL...

RESIN COMPOSITION AND ARTICLE MADE THEREFROM

ULTRA-HIGH MODULUS AND HIGH-TRANSMITTANCE POLYIMIDE THIN FILM, AND...

POLYMER COMPOSITIONS AND COATING SOLUTIONS

POLYIMIDE RESIN

Polyimide Precursor Composition and Polyimide Film Produced Using t...

POLYIMIDE FILM AND METAL-LINED LAYERED SHEET

POLYAMIC ACID SOLUTIONS, POLYIMIDE FILMS AND ELECTRONIC DEVICES

POLYIMIDE PRECURSOR PREPARED BY USING POLYCYCLIC MONOMER INCLUDING...

LAYERED PRODUCT INCLUDING HIGH TEMPERATURE-RESISTANT TRANSPARENT FILM

POLYIMIDE-BASED COMPOSITION AND POLYIMIDE FILM

AIR PERMEABLE FILTER MATERIAL COMPRISING A POLYMER AEROGEL

MONOMER AND POLYMER, COMPENSATION FILM, OPTICAL FILM, AND DISPLAY D...

MULTILAYER BODY COMPRISING HIGHLY HEAT-RESISTANT TRANSPARENT FILM

BRANCHED AMORPHOUS POLYAMIDE (CO)POLYMERS AND METHODS OF MAKING AND...

LIQUID CRYSTAL ALIGNMENT AGENT AND PREPARATION METHOD THEREOF, LIQU...

FIXING BELT

POLYIMIDE-BASED POLYMER FILM, SUBSTRATE FOR DISPLAY DEVICE, CIRCUIT...

Diamine, Polymer and Film Produced Using the Same

SEPARATION MEMBRANE AND METAL ORGANIC FRAMEWORK

LOW-COLOR POLYMERS FOR USE IN ELECTRONIC DEVICES