Koji Harakawa

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Shizuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Two-component developer and image-forming method for which the deve...
- Patent number 5,593,806
- Issue date Jan 14, 1997
- Matsushita Electric Industrial Co., Ltd.
- Ryuji Nishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing compositions for electrophotography
- Patent number 5,290,652
- Issue date Mar 1, 1994
- Tomoegawa Paper Co., Ltd.
- Koji Harakawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY