Membership
Tour
Register
Log in
Kousuke Doi
Follow
Person
Kawasaki-shi, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Chemically amplified positive photo resist composition and method f...
Patent number
7,358,028
Issue date
Apr 15, 2008
Tokyo Ohka Kogyo Co., Ltd.
Kenji Maruyama
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Novolak resin solution, positive photoresist composition and prepar...
Patent number
7,060,410
Issue date
Jun 13, 2006
Tokyo Ohka Kogyo Co., Ltd.
Hiroyuki Ohnishi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Positive photoresist composition
Patent number
6,964,838
Issue date
Nov 15, 2005
Tokyo Ohka Kogyo Co., Ltd.
Masaki Kurihara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Phenol novolak resin, production process thereof, and positive phot...
Patent number
6,939,926
Issue date
Sep 6, 2005
Tokyo Ohka Kogyo Co., Ltd.
Ken Miyagi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Copolymer, photoresist composition, and process for forming resist...
Patent number
6,884,566
Issue date
Apr 26, 2005
Tokyo Ohka Kogyo Co., Ltd.
Tsuyoshi Nakamura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Positive photoresist composition
Patent number
6,869,742
Issue date
Mar 22, 2005
Tokyo Ohka Kogyo Co., Ltd.
Jyunichi Mizuta
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist composition and method of patterning resist th...
Patent number
6,762,005
Issue date
Jul 13, 2004
Tokyo Ohka Kogyo Co., Ltd.
Akira Katano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist composition and method of patterning resist th...
Patent number
6,756,178
Issue date
Jun 29, 2004
Tokyo Ohka Kogyo Co., Ltd.
Akira Katano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist composition, substrate with a photosensitive f...
Patent number
6,566,031
Issue date
May 20, 2003
Tokyo Ohka Kogyo Co., Ltd.
Takako Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Copolymer, photoresist composition, and process for forming resist...
Patent number
6,517,993
Issue date
Feb 11, 2003
Tokyo Ohka Kogyo Co., Ltd.
Tsuyoshi Nakamura
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Positive photoresist composition comprising a phenolic compound hav...
Patent number
6,475,694
Issue date
Nov 5, 2002
Tokyo Ohka Kogyo Co., Ltd.
Kousuke Doi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Novolak resin precursor, novolak resin and positive photoresist com...
Patent number
6,417,317
Issue date
Jul 9, 2002
Togyo Ohka Kogyo Co., Ltd.
Ken Miyagi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist composition and process for forming resist pat...
Patent number
6,406,827
Issue date
Jun 18, 2002
Tokyo Ohka Kogyo Co., Ltd.
Takako Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist composition and process for forming resist pat...
Patent number
6,379,859
Issue date
Apr 30, 2002
Tokyo Ohka Kogyo Co., Ltd.
Takako Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist composition
Patent number
6,312,863
Issue date
Nov 6, 2001
Tokyo Ohka Kogyo Co., Ltd.
Shinichi Hidesaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist composition and process for forming resist pat...
Patent number
6,300,033
Issue date
Oct 9, 2001
Tokyo Ohka Kogyo Co., Ltd.
Takako Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist composition and process for forming contact hole
Patent number
6,296,992
Issue date
Oct 2, 2001
Tokyo Ohka Kogyo Co., Ltd.
Masaki Kurihara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist composition and process for forming contact hole
Patent number
6,207,340
Issue date
Mar 27, 2001
Tokyo Ohka Kogyo Co., Ltd.
Masaki Kurihara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Novolak resin precursor, novolak resin and positive photoresist com...
Patent number
6,207,788
Issue date
Mar 27, 2001
Tokyo Ohka Kogya Co., Ltd.
Ken Miyagi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist compositions and multilayer resist materials u...
Patent number
6,187,500
Issue date
Feb 13, 2001
Tokyo Ohka Kogyo Co., Ltd.
Ken Miyagi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Positive photoresist composition and process for forming contact hole
Patent number
6,177,226
Issue date
Jan 23, 2001
Tokyo Ohka Kogyo Co., Ltd.
Masaki Kurihara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist compositions and multilayer resist materials u...
Patent number
6,127,087
Issue date
Oct 3, 2000
Tokyo Ohka Kogyo Co., Ltd.
Miki Kobayashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Polyphenol compound, quinonediazide ester and positive photoresist...
Patent number
6,120,969
Issue date
Sep 19, 2000
Tokyo Ohka Kogyo Co., Ltd.
Mitsuo Hagihara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive resist composition
Patent number
6,030,741
Issue date
Feb 29, 2000
Tokyo Ohka Kogyo Co., Ltd.
Kousuke Doi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist compositions and multilayer resist materials u...
Patent number
5,853,948
Issue date
Dec 29, 1998
Tokyo Ohka Kogyo Co., Ltd.
Atsushi Sawano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist composition
Patent number
5,738,968
Issue date
Apr 14, 1998
Tokyo Ohka Kogyo Co., Ltd.
Hiroshi Hosoda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist composition
Patent number
5,702,861
Issue date
Dec 30, 1997
Tokyo Ohka Kogyo Co., Ltd.
Satoshi Niikura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
High-sensitivity positive-working photoresist composition
Patent number
5,601,961
Issue date
Feb 11, 1997
Tokyo Ohka Kogyo Co., Ltd.
Kazuhiko Nakayama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Positive-working quinonediazide photoresist composition containing...
Patent number
5,501,936
Issue date
Mar 26, 1996
Tokyo Ohka Kogyo Co., Ltd.
Hiroshi Hosoda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive-working naphthoquinone diazide sulfonic acid ester photore...
Patent number
5,478,692
Issue date
Dec 26, 1995
Tokyo Ohka Kogyo Co., Ltd.
Kousuke Doi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
CHEMICAL AMPLIFICATION TYPE POSITIVE PHOTORESIST COMPOSITION AND RE...
Publication number
20070117045
Publication date
May 24, 2007
Tokyo Ohka Kogyo Co., Ltd.
Kenji Maruyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Chemically amplified positive photo resist composition and method f...
Publication number
20050244740
Publication date
Nov 3, 2005
Kenji Maruyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Phenol novolak resin, production process thereof, and positive phot...
Publication number
20040167312
Publication date
Aug 26, 2004
Tokyo Ohka Kogyo Co., Ltd.
Ken Miyagi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Positive photoresist composition
Publication number
20040137359
Publication date
Jul 15, 2004
Tokyo Ohka Kogyo Co., Ltd.
Masaki Kurihara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Novel copolymer, photoresist composition, and process for forming r...
Publication number
20040096772
Publication date
May 20, 2004
Tokyo Ohka Kogyo Co., Ltd.
Tsuyoshi Nakamura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Novolak resin solution, positive photoresist composition and prepar...
Publication number
20040081909
Publication date
Apr 29, 2004
Hiroyuki Ohnishi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Novel copolymer, photoresist composition, and process for forming r...
Publication number
20030186171
Publication date
Oct 2, 2003
Tokyo Ohka Kogyo Co., Ltd.
Tsuyoshi Nakamura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Positive photoresist composition and method of patterning resist th...
Publication number
20030143479
Publication date
Jul 31, 2003
Tokyo Ohka Kogyo Co., Ltd.
Akira Katano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Positive photoresist composition and method of patterning resist th...
Publication number
20030134223
Publication date
Jul 17, 2003
Tokyo Ohka Kogyo Co., Ltd.
Akira Katano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Positive photoresist composition
Publication number
20020182531
Publication date
Dec 5, 2002
Tokyo Ohka Kogyo Co., Ltd.
Jyunichi Mizuta
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Positive photoresist composition
Publication number
20020132178
Publication date
Sep 19, 2002
Tokyo Ohka Kogyo Co., Ltd.
Masaki Kurihara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Positive photoresist composition and process for forming resist pat...
Publication number
20020119390
Publication date
Aug 29, 2002
Tokyo Ohka Kogyo Co., Ltd.
Takako Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Novel copolymer, photoresist composition, and process for forming r...
Publication number
20020031719
Publication date
Mar 14, 2002
Tokyo Ohka Kogyo Co., Ltd.
Tsuyoshi Nakamura
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Novel copolymer, photoresist composition , and process for forming...
Publication number
20020031720
Publication date
Mar 14, 2002
Tokyo Ohka Kogyo Co., Ltd.
Tsuyoshi Nakamura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POSITIVE PHOTORESIST COMPOSITION AND PROCESS FOR FORMING RESIST PAT...
Publication number
20020012865
Publication date
Jan 31, 2002
TAKAKO SUZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Positive photoresist composition
Publication number
20020001769
Publication date
Jan 3, 2002
Tokyo Ohka Kogyo Co., Ltd.
Kousuke Doi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
POSITIVE PHOTORESIST COMPOSITION AND PROCESS FOR FORMING RESIST PAT...
Publication number
20010053493
Publication date
Dec 20, 2001
TAKAKO SUZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Phenol novolak resin, production process thereof, and positive phot...
Publication number
20010024762
Publication date
Sep 27, 2001
Ken Miyagi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...