Hitoshi Oka

Person

Chuo-ku, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Piezoelectric ceramics
- Patent number 6,551,522
- Issue date Apr 22, 2003
- TDK Corporation
- Masakazu Hirose
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cleaning apparatus for plate-like part and method thereof
- Patent number 6,539,959
- Issue date Apr 1, 2003
- Hitachi, Ltd.
- Noriyuki Ohroku
- G11 - INFORMATION STORAGE
Information Patent Grant
Piezoelectric ceramic material
- Patent number 6,461,532
- Issue date Oct 8, 2002
- TDK Corporation
- Hitoshi Oka
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Plate-like specimen fluid-treating apparatus and plate-like specime...
- Patent number 6,443,168
- Issue date Sep 3, 2002
- Hitachi Kokusai Electric Inc.
- Fumio Morita
- B08 - CLEANING
Information Patent Grant
Fluid processing apparatus
- Patent number 6,431,190
- Issue date Aug 13, 2002
- Kokusai Electric Co., Ltd.
- Hitoshi Oka
- B08 - CLEANING
Information Patent Grant
Substrate treating apparatus
- Patent number 6,401,734
- Issue date Jun 11, 2002
- Hitachi Kokusai Electric Inc.
- Fumio Morita
- B08 - CLEANING
Information Patent Grant
Piezoelectric ceramic
- Patent number 6,398,978
- Issue date Jun 4, 2002
- TDK Corporation
- Masakazu Hirose
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Clean, recirculating processing method which prevents surface conta...
- Patent number 6,315,836
- Issue date Nov 13, 2001
- Kokusai Electric Co., Ltd.
- Hitoshi Oka
- B08 - CLEANING
Information Patent Grant
Piezoelectric ceramics
- Patent number 6,241,908
- Issue date Jun 5, 2001
- TDK Corporation
- Masakazu Hirose
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method of preparation of piezoelectric ceramics
- Patent number 6,129,886
- Issue date Oct 10, 2000
- TDK Corporation
- Kazushi Tachimoto
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Piezoelectric ceramics
- Patent number 6,090,306
- Issue date Jul 18, 2000
- TDK Corporation
- Taeko Tsubokura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Specimen holding method and fluid treatment method of specimen surf...
- Patent number 5,979,475
- Issue date Nov 9, 1999
- Hitachi, Ltd.
- Takao Satoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Process for stripping photoresist while producing liquid crystal di...
- Patent number 5,633,175
- Issue date May 27, 1997
- Hitachi, Ltd.
- Hiroshi Kikuchi
- G02 - OPTICS
Information Patent Grant
Method of controlling adhesion of fine particles to an object in li...
- Patent number 5,409,544
- Issue date Apr 25, 1995
- Hitachi, Ltd.
- Katsuhiro Ota
- B08 - CLEANING
Information Patent Grant
Resist-peeling liquid and process for peeling a resist using the same
- Patent number 5,399,202
- Issue date Mar 21, 1995
- Hitachi, Ltd.
- Hiroshi Kikuchi
- G02 - OPTICS
Information Patent Grant
Process for fabricating an interconnected multilayer board
- Patent number 5,388,328
- Issue date Feb 14, 1995
- Hitachi, Ltd.
- Hitoshi Yokono
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photosensitive resin composition for forming conductor patterns and...
- Patent number 5,387,493
- Issue date Feb 7, 1995
- Hitachi, Ltd.
- Shinichiro Imabayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Surface treating agent for copper or copper alloys
- Patent number 5,348,590
- Issue date Sep 20, 1994
- Hitachi, Ltd.
- Seizi Shigemura
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Interconnected multilayer boards and fabrication processes thereof
- Patent number 5,300,735
- Issue date Apr 5, 1994
- Hitachi, Ltd.
- Hitoshi Yokono
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photo-setting resist composition, a process for producing a printed...
- Patent number 5,268,255
- Issue date Dec 7, 1993
- Hitachi, Ltd.
- Hiroshi Kikuchi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid etchant composition for thin film resistor element
- Patent number 5,256,247
- Issue date Oct 26, 1993
- Hitachi, Ltd.
- Takayoshi Watanabe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Photocurable diallyl phthalate resin composition and printed circui...
- Patent number 5,091,283
- Issue date Feb 25, 1992
- Hitachi, Ltd.
- Isamu Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic recording medium having an amorphous, nonmagnetic nickel-t...
- Patent number 4,735,853
- Issue date Apr 5, 1988
- Hitachi, Ltd.
- Hiroaki Okudaira
- G11 - INFORMATION STORAGE
Information Patent Grant
Electroless copper plating solution
- Patent number 4,563,217
- Issue date Jan 7, 1986
- Hitachi, Ltd.
- Hiroshi Kikuchi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Epoxy resin composition
- Patent number 4,555,532
- Issue date Nov 26, 1985
- Hitachi, Ltd.
- Isamu Tanaka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Epoxy resin composition
- Patent number 4,460,718
- Issue date Jul 17, 1984
- Hitachi, Ltd.
- Isamu Tanaka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for forming metallic image
- Patent number 4,347,304
- Issue date Aug 31, 1982
- Hitachi, Ltd.
- Hideki Sakurai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for regenerating chemical copper plating solution
- Patent number 4,324,629
- Issue date Apr 13, 1982
- Hitachi, Ltd.
- Hitoshi Oka
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for automatically controlling composition of chemical copper...
- Patent number 4,310,563
- Issue date Jan 12, 1982
- Hitachi, Ltd.
- Hitoshi Oka
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Electroless copper plating solution
- Patent number 4,303,443
- Issue date Dec 1, 1981
- Hitachi, Ltd.
- Osamu Miyazawa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
ANTILOADING COMPOSITION FOR AN ABRASIVE ARTICLE AND ABRASIVE ARTICL...
- Publication number 20100077673
- Publication date Apr 1, 2010
- Hitoshi Oka
- B24 - GRINDING POLISHING
Information Patent Application
DUST VACUUMING ABRASIVE TOOL
- Publication number 20080081546
- Publication date Apr 3, 2008
- 3M Innovative Properties Company
- SATORU TAKINAMI
- B24 - GRINDING POLISHING
Information Patent Application
Piezoelectric Ceramics and Piezoelectric Element
- Publication number 20070257228
- Publication date Nov 8, 2007
- TDK CORPORATION
- Takeo Tsukada
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
ABRASIVE TOOL FOR COLLECTING DUST
- Publication number 20070243803
- Publication date Oct 18, 2007
- 3M Innovative Properties Company
- HITOSHI OKA
- B24 - GRINDING POLISHING
Information Patent Application
Fluid processing method of an object to be processed and apparatus...
- Publication number 20020050281
- Publication date May 2, 2002
- Kokusai Electric Co., Ltd.
- Hitoshi Oka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Piezoelectric ceramics
- Publication number 20010015420
- Publication date Aug 23, 2001
- TDK Corporation
- Masakazu Hirose
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Hitoshi Oka

Person

Patents Grantslast 30 patents

Piezoelectric ceramics

Cleaning apparatus for plate-like part and method thereof

Piezoelectric ceramic material

Plate-like specimen fluid-treating apparatus and plate-like specime...

Fluid processing apparatus

Substrate treating apparatus

Piezoelectric ceramic

Clean, recirculating processing method which prevents surface conta...

Piezoelectric ceramics

Method of preparation of piezoelectric ceramics

Piezoelectric ceramics

Specimen holding method and fluid treatment method of specimen surf...

Process for stripping photoresist while producing liquid crystal di...

Method of controlling adhesion of fine particles to an object in li...

Resist-peeling liquid and process for peeling a resist using the same

Process for fabricating an interconnected multilayer board

Photosensitive resin composition for forming conductor patterns and...

Surface treating agent for copper or copper alloys

Interconnected multilayer boards and fabrication processes thereof

Photo-setting resist composition, a process for producing a printed...

Liquid etchant composition for thin film resistor element

Photocurable diallyl phthalate resin composition and printed circui...

Magnetic recording medium having an amorphous, nonmagnetic nickel-t...

Electroless copper plating solution

Epoxy resin composition

Epoxy resin composition

Process for forming metallic image

Process for regenerating chemical copper plating solution

Method for automatically controlling composition of chemical copper...

Electroless copper plating solution

Patents Applicationslast 30 patents

ANTILOADING COMPOSITION FOR AN ABRASIVE ARTICLE AND ABRASIVE ARTICL...

DUST VACUUMING ABRASIVE TOOL

Piezoelectric Ceramics and Piezoelectric Element

ABRASIVE TOOL FOR COLLECTING DUST

Fluid processing method of an object to be processed and apparatus...

Piezoelectric ceramics