Waki Ohkubo

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Kawasaki-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Positive resist composition and method for forming resist pattern
- Patent number 7,858,286
- Issue date Dec 28, 2010
- Tokyo Ohka Kogyo Co., Ltd.
- Yohei Kinoshita
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Positive resist composition and resist pattern forming method
- Patent number 7,781,144
- Issue date Aug 24, 2010
- Tokyo Ohka Kogyo Co., Ltd.
- Yohei Kinoshita
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Positive resist composition and method of forming resist pattern us...
- Patent number 7,192,687
- Issue date Mar 20, 2007
- Tokyo Ohka Kogyo Co., Ltd.
- Kazuyuki Nitta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Poly (disulfonyl diazomethane) compound and positive-working chemic...
- Patent number 6,180,313
- Issue date Jan 30, 2001
- Tokyo Ohka Kogyo Co., Ltd.
- Hiroto Yukawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
(Disulfonyl diazomethane compounds)
- Patent number 6,153,733
- Issue date Nov 28, 2000
- Tokyo Ohka Kogyo Co., Ltd.
- Hiroto Yukawa
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
POSITIVE RESIST COMPOSITION AND METHOD FOR FORMING RESIST PATTERN
- Publication number 20090098483
- Publication date Apr 16, 2009
- TOKYO OHA KOGYO CO., LTD.
- Yohei Kinoshita
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POSITIVE RESIST COMPOSITION AND RESIST PATTERN FORMING METHOD
- Publication number 20090035698
- Publication date Feb 5, 2009
- Tokyo Ohka Kogyo Co., Ltd.
- Yohei Kinoshita
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Positive resist composition and method of forming resist pattern us...
- Publication number 20050079445
- Publication date Apr 14, 2005
- Kazuyuki Nitta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY