Hiroto Yukawa

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Livingston, GB

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Patents Grantslast 30 patents

Information Patent Grant
Positive-working chemical-amplification photoresist composition
- Patent number 6,815,144
- Issue date Nov 9, 2004
- Tokyo Ohka Kogyo Co., Ltd.
- Katsumi Oomori
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Positive resist composition and positive resist base material using...
- Patent number 6,649,322
- Issue date Nov 18, 2003
- Tokyo Ohka Kogyo Co., Ltd.
- Satoshi Kumon
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
Positive-working chemical-amplification photoresist composition
- Publication number 20050042544
- Publication date Feb 24, 2005
- Katsumi Oomori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Positive-working chemical-amplification photoresist composition
- Publication number 20020094489
- Publication date Jul 18, 2002
- Katsumi Oomori
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Positive-working chemical-amplification photoresist composition
- Publication number 20020090571
- Publication date Jul 11, 2002
- Katsumi Oomori
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Positive resist composition and positive resist base material using...
- Publication number 20020076649
- Publication date Jun 20, 2002
- Tokyo Ohka Kogyo Co., Ltd.
- Satoshi Kumon
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC