Yoshiaki Echigo

Person

Uji, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Production method of maleimide
- Patent number 11,958,806
- Issue date Apr 16, 2024
- UNITIKA LTD.
- Yuki Yamada
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Bismaleimide modified product and method for producing the same
- Patent number 11,104,643
- Issue date Aug 31, 2021
- UNITIKA LTD.
- Yuki Yamada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Production method of maleimide
- Patent number 10,836,719
- Issue date Nov 17, 2020
- UNITIKA LTD.
- Yuki Yamada
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Bismaleimide modified product and method for producing the same
- Patent number 10,759,753
- Issue date Sep 1, 2020
- Unitika Ltd.
- Yuki Yamada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyimide resin composition, polyimide precursor resin composition...
- Patent number 8,492,506
- Issue date Jul 23, 2013
- Unitika Ltd.
- Takeshi Yoshida
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Substrate for flexible printed wiring board and method for manufact...
- Patent number 7,384,683
- Issue date Jun 10, 2008
- Unitika Ltd.
- Yoshiaki Echigo
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for preparing substrate for flexible print wiring board, and...
- Patent number 6,962,726
- Issue date Nov 8, 2005
- Unitika Ltd.
- Akira Shigeta
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide precursor fibrid, polyimide paper, polyimide composite pa...
- Patent number 6,294,049
- Issue date Sep 25, 2001
- Unitika Ltd.
- Isao Tomioka
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Hollow polymide microspheres
- Patent number 6,235,803
- Issue date May 22, 2001
- The United States of America as represented by the administrator of the Natio...
- Erik S. Weiser
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Films, preimpregnated tapes and composites made from polyimide &#x0...
- Patent number 6,222,007
- Issue date Apr 24, 2001
- The United States of America as represented by the National Aeronautics and S...
- Roberto J. Cano
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide precursor solid residuum
- Patent number 6,180,746
- Issue date Jan 30, 2001
- The United States of America as represented by the administrator of the Natio...
- Erik S. Weiser
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide precursor solution, coating film obtained therefrom, and...
- Patent number 6,133,407
- Issue date Oct 17, 2000
- Unitka Ltd.
- Hisayasu Kaneshiro
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Aromatic polyimide foam
- Patent number 6,133,330
- Issue date Oct 17, 2000
- The United States of America as represented by the administrator of the Natio...
- Erik S. Weiser
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hollow polyimide microspheres
- Patent number 6,084,000
- Issue date Jul 4, 2000
- The United States of America as represented by the administrator of the Natio...
- Erik S. Weiser
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hollow polyimide microspheres
- Patent number 5,994,418
- Issue date Nov 30, 1999
- The United States of America as represented by the Administrator of the Natio...
- Erik S. Weiser
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Production of fiber reinforced composite
- Patent number 5,906,712
- Issue date May 25, 1999
- Unitika Ltd.
- Keiichi Asami
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Polyimide precursor solution process for the production thereof coa...
- Patent number 5,854,380
- Issue date Dec 29, 1998
- Unitika Ltd.
- Keitarou Seto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
PTC element and process for producing the same
- Patent number 5,817,423
- Issue date Oct 6, 1998
- Unitika Ltd.
- Hiroshi Kajimaru
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fiber-reinforced porous plastic tube
- Patent number 5,721,031
- Issue date Feb 24, 1998
- Unitika Ltd.
- Yoshiaki Echigo
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Poly(amic acid) solution and polyimide film or polymide-coated mate...
- Patent number 5,719,253
- Issue date Feb 17, 1998
- Unitika Ltd.
- Yoshiaki Echigo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Film forming solution, porous film obtained therefrom and coated ma...
- Patent number 5,510,395
- Issue date Apr 23, 1996
- Unitika, Ltd.
- Isao Tomioka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Composite sheet electrode
- Patent number 5,489,492
- Issue date Feb 6, 1996
- Unitika Ltd.
- Keiichi Asami
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Polyimide precursor solution, process for producing the solution an...
- Patent number 5,466,732
- Issue date Nov 14, 1995
- Unitika Ltd.
- Isao Tomioka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Granular material of polyimide precursor, mixture comprising the ma...
- Patent number 5,463,016
- Issue date Oct 31, 1995
- Unitika Ltd.
- Isao Tomioka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Carbonaceous material and a cell using the same
- Patent number 5,348,818
- Issue date Sep 20, 1994
- Unitika Ltd.
- Keiichi Asami
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Electrode and method of producing the same
- Patent number 5,225,296
- Issue date Jul 6, 1993
- Ricoh Company, Ltd.
- Toshiyuki Ohsawa
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Composite carrier particles for electrophotography and process for...
- Patent number 5,108,862
- Issue date Apr 28, 1992
- Toda Kogyo Corp.
- Souichiro Kishimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rubber compositions for tires
- Patent number 4,942,192
- Issue date Jul 17, 1990
- Bridgestone Corporation
- Takuo Yasuda
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Spherical particles of thermosetting phenolic resin and process for...
- Patent number 4,839,445
- Issue date Jun 13, 1989
- Unitika, Ltd.
- Yoshiaki Echigo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for treating waste water containing uranium and fluorine
- Patent number 4,808,316
- Issue date Feb 28, 1989
- Unitika Ltd.
- Keiichiro Otomura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
PRODUCTION METHOD OF MALEIMIDE
- Publication number 20210009516
- Publication date Jan 14, 2021
- unitika ltd.
- Yuki Yamada
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
BISMALEIMIDE MODIFIED PRODUCT AND METHOD FOR PRODUCING THE SAME
- Publication number 20200354317
- Publication date Nov 12, 2020
- unitika ltd.
- Yuki YAMADA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
BISMALEIMIDE AND METHOD FOR PRODUCING THE SAME
- Publication number 20190382341
- Publication date Dec 19, 2019
- unitika ltd.
- Yuki YAMADA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PRODUCTION METHOD OF MALEIMIDE
- Publication number 20190345102
- Publication date Nov 14, 2019
- unitika ltd.
- Yuki Yamada
- C07 - ORGANIC CHEMISTRY
Information Patent Application
BISMALEIMIDE MODIFIED PRODUCT AND METHOD FOR PRODUCING THE SAME
- Publication number 20180362463
- Publication date Dec 20, 2018
- unitika ltd.
- Yuki YAMADA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
BISMALEIMIDE AND PRODUCTION METHOD THEREOF
- Publication number 20180201579
- Publication date Jul 19, 2018
- unitika ltd.
- Yuki YAMADA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
FIBROUS COPPER MICROPARTICLES AND PROCESS FOR PRODUCING SAME
- Publication number 20160214169
- Publication date Jul 28, 2016
- UNITIKA LTD.
- Munenori Yamada
- B22 - CASTING POWDER METALLURGY
Information Patent Application
FIBROUS COPPER MICROPARTICLES AND METHOD FOR MANUFACTURING SAME
- Publication number 20150147584
- Publication date May 28, 2015
- UNITIKA LTD.
- Munenori Yamada
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
COATED FIBROUS COPPER MICROPARTICLES, AND ELECTRICALLY CONDUCTIVE C...
- Publication number 20140120360
- Publication date May 1, 2014
- UNITIKA LTD.
- Munenori Yamada
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
POLYIMIDE RESIN COMPOSITION, POLYIMIDE PRECURSOR RESIN COMPOSITION...
- Publication number 20100273974
- Publication date Oct 28, 2010
- UNITIKA LTD.
- Takeshi Yoshida
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
LAMINATE HAVING PEELABILITY AND PRODUCTION METHOD THEREFOR
- Publication number 20090246554
- Publication date Oct 1, 2009
- Mikio Furukawa
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
FLEXIBLE CIRCUIT BOARD, METHOD FOR MAKING THE SAME, FLEXIBLE MULTI-...
- Publication number 20070170598
- Publication date Jul 26, 2007
- NORTH CORPORATION
- Tomoo Iijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Substrate for flexible printed wiring board and method for manufact...
- Publication number 20070071984
- Publication date Mar 29, 2007
- Yoshiaki Echigo
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Polyimide precursor solution, transfer/fixing member and process fo...
- Publication number 20050107526
- Publication date May 19, 2005
- Hirohisa Katou
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Method for preparing substrate for flexible print wiring board, and...
- Publication number 20030108748
- Publication date Jun 12, 2003
- Akira Shigeta
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Yoshiaki Echigo

Person

Patents Grantslast 30 patents

Production method of maleimide

Bismaleimide modified product and method for producing the same

Production method of maleimide

Bismaleimide modified product and method for producing the same

Polyimide resin composition, polyimide precursor resin composition...

Substrate for flexible printed wiring board and method for manufact...

Method for preparing substrate for flexible print wiring board, and...

Polyimide precursor fibrid, polyimide paper, polyimide composite pa...

Hollow polymide microspheres

Films, preimpregnated tapes and composites made from polyimide &#x0...

Polyimide precursor solid residuum

Polyimide precursor solution, coating film obtained therefrom, and...

Aromatic polyimide foam

Hollow polyimide microspheres

Hollow polyimide microspheres

Production of fiber reinforced composite

Polyimide precursor solution process for the production thereof coa...

PTC element and process for producing the same

Fiber-reinforced porous plastic tube

Poly(amic acid) solution and polyimide film or polymide-coated mate...

Film forming solution, porous film obtained therefrom and coated ma...

Composite sheet electrode

Polyimide precursor solution, process for producing the solution an...

Granular material of polyimide precursor, mixture comprising the ma...

Carbonaceous material and a cell using the same

Electrode and method of producing the same

Composite carrier particles for electrophotography and process for...

Rubber compositions for tires

Spherical particles of thermosetting phenolic resin and process for...

Process for treating waste water containing uranium and fluorine

Patents Applicationslast 30 patents

PRODUCTION METHOD OF MALEIMIDE

BISMALEIMIDE MODIFIED PRODUCT AND METHOD FOR PRODUCING THE SAME

BISMALEIMIDE AND METHOD FOR PRODUCING THE SAME

PRODUCTION METHOD OF MALEIMIDE

BISMALEIMIDE MODIFIED PRODUCT AND METHOD FOR PRODUCING THE SAME

BISMALEIMIDE AND PRODUCTION METHOD THEREOF

FIBROUS COPPER MICROPARTICLES AND PROCESS FOR PRODUCING SAME

FIBROUS COPPER MICROPARTICLES AND METHOD FOR MANUFACTURING SAME

COATED FIBROUS COPPER MICROPARTICLES, AND ELECTRICALLY CONDUCTIVE C...

POLYIMIDE RESIN COMPOSITION, POLYIMIDE PRECURSOR RESIN COMPOSITION...

LAMINATE HAVING PEELABILITY AND PRODUCTION METHOD THEREFOR

FLEXIBLE CIRCUIT BOARD, METHOD FOR MAKING THE SAME, FLEXIBLE MULTI-...

Substrate for flexible printed wiring board and method for manufact...

Polyimide precursor solution, transfer/fixing member and process fo...

Method for preparing substrate for flexible print wiring board, and...