Yukihiro Sawayanagi

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Iida-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Positive-working chemical-amplification photoresist composition
- Patent number 7,147,984
- Issue date Dec 12, 2006
- Tokyo Ohka Kogyo Co., Ltd.
- Hiroto Yukawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
Positive-working chemical-amplification photoresist composition
- Publication number 20040191677
- Publication date Sep 30, 2004
- Hiroto Yukawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Positive-working chemical-amplification photoresist composition
- Publication number 20040023163
- Publication date Feb 5, 2004
- Hiroto Yukawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Positive-working chemical-amplification photoresist composition
- Publication number 20020119393
- Publication date Aug 29, 2002
- Hiroto Yukawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC