Tetsuya Kato

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Kawasaki-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Solvent for cleaning
- Patent number 7,932,221
- Issue date Apr 26, 2011
- Tokyo Ohka Kogyo Co., Ltd.
- Akira Katano
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Positive photosensitive compositions for application of the lift-of...
- Patent number 6,265,129
- Issue date Jul 24, 2001
- Tokyo Ohka Kogyo Co., Ltd.
- Koichi Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Article utilizing quinone diazide resist layer on tantalum substrat...
- Patent number 5,552,255
- Issue date Sep 3, 1996
- Tokyo Ohka Kogyo Co., Ltd.
- Tetsuya Kato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Positive-working quinonediazide photoresist composition containing...
- Patent number 5,518,860
- Issue date May 21, 1996
- Tokyo Ohka Kogyo Co., Ltd.
- Satoshi Niikura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for forming positive patterned resist layer on tantalum subs...
- Patent number 5,401,617
- Issue date Mar 28, 1995
- Tokyo Ohka Kogyo Co., Ltd.
- Tetsuya Kato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Solvent for Cleaning
- Publication number 20080039355
- Publication date Feb 14, 2008
- Tokyo Ohka Kogyo Co., Ltd.
- Akira Katano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY