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Kanagawa, JP
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Patents Grants
last 30 patents
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
Rinsing solution for lithography and method for processing substrat...
Patent number
6,815,151
Issue date
Nov 9, 2004
Tokyo Ohika Kogyo Co., Ltd.
Masahito Tanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist composition and process for synthesizing polyp...
Patent number
6,620,978
Issue date
Sep 16, 2003
Tokyo Ohka Kogyo Co., Ltd.
Satoshi Shimatani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive resist composition
Patent number
RE38254
Issue date
Sep 16, 2003
Tokyo Ohka Kogyo Co., Ltd.
Kazufumi Sato
525 - Synthetic resins or natural rubbers
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
Positive photoresist composition and process and synthesizing polyp...
Patent number
6,492,085
Issue date
Dec 10, 2002
Tokyo Ohka Kogyo Co., Ltd.
Satoshi Shimatani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
Developer solution for acitinic ray sensitive resist
Patent number
6,329,126
Issue date
Dec 11, 2001
Tokyo Ohka Kogyo Co., Ltd.
Hatsuyuki Tanaka
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
Photoresist stripping liquid compositions and a method of stripping...
Patent number
6,291,142
Issue date
Sep 18, 2001
Tokyo Ohka Kogyo Co., Ltd.
Masahito Tanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Composition for forming antireflective coating film and method for...
Patent number
6,268,108
Issue date
Jul 31, 2001
Tokyo Ohka Kogyo Co., Ltd.
Etsuko Iguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Post-ashing treating liquid compositions and a process for treatmen...
Patent number
6,261,745
Issue date
Jul 17, 2001
Tokyo Ohka Kogyo Co., Ltd.
Masahito Tanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Chemical-sensitization resist composition
Patent number
6,245,930
Issue date
Jun 12, 2001
Tokyo Ohka Kogyo Co., Ltd.
Katsumi Oomori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photoresist stripping liquid compositions and a method of stripping...
Patent number
6,225,034
Issue date
May 1, 2001
Tokyo Ohka Kogyo Co., Ltd.
Masahito Tanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Post-ashing treating method for substrates
Patent number
6,225,030
Issue date
May 1, 2001
Tokyo Ohka Kogyo Co., Ltd.
Masahito Tanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Coating solution for forming silica coating and method of forming s...
Patent number
6,214,104
Issue date
Apr 10, 2001
Tokyo Ohka Kogyo Co., Ltd.
Hiroyuki Iida
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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
Negative-working chemical-amplification photoresist composition
Patent number
6,171,749
Issue date
Jan 9, 2001
Tokyo Ohka Kogyo Co., Ltd.
Toshikazu Tachikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive resist composition
Patent number
6,159,652
Issue date
Dec 12, 2000
Tokyo Ohka Kogyo Co., Ltd.
Mitsuru Sato
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Liquid coating composition for use in forming antireflective film a...
Patent number
6,136,505
Issue date
Oct 24, 2000
Tokyo Ohka Kogyo Co., Ltd.
Masahito Tanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Coating solution for forming antireflective coating film
Patent number
6,132,928
Issue date
Oct 17, 2000
Tokyo Ohka Kogyo Co., Ltd.
Masahito Tanabe
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
Patents Applications
last 30 patents
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 and process for synthesizing polyp...
Publication number
20030054283
Publication date
Mar 20, 2003
Tokyo Ohka Kogyo Co., Ltd.
Satoshi Shimatani
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
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
Rinsing solution for lithography and method for processing substrat...
Publication number
20010038976
Publication date
Nov 8, 2001
Masahito Tanabe
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-...