Tokyo Ohka Kogy Co., Ltd

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Kawasaki-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Positive-working naphthoquinone diazide photoresist composition wit...
- Patent number 4,731,319
- Issue date Mar 15, 1988
- Tokyo Ohka Kogy Co., Ltd.
- Hidekatsu Kohara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

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Patents Applicationslast 30 patents

Information Patent Application
LAMINATE PRODUCTION METHOD, SUBSTRATE PROCESSING METHOD, AND LAMINATE
- Publication number 20170326850
- Publication date Nov 16, 2017
- Tokyo Ohka Kogy Co., Ltd
- Takahiro YOSHIOKA
- B32 - LAYERED PRODUCTS
Information Patent Application
PATTERN-FORMING METHOD, METAL OXIDE FILM-FORMING MATERIAL AND METHO...
- Publication number 20100003622
- Publication date Jan 7, 2010
- Tokyo Ohka Kogy Co., Ltd
- Shogo Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY