Yukio Yoshikawa

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Wakaguri, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image processing apparatus
- Patent number 9,900,466
- Issue date Feb 20, 2018
- Riso Kagaku Corporation
- Daisuke Fujiwara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image reading apparatus having dual white reference plate and image...
- Patent number 7,999,215
- Issue date Aug 16, 2011
- Riso Kagaku Corporation
- Takashi Ebisawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
IMAGE PROCESSING APPARATUS
- Publication number 20170244861
- Publication date Aug 24, 2017
- Riso Kagaku Corporation
- Daisuke FUJIWARA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Image reading apparatus and image reading method for effectively pe...
- Publication number 20090294701
- Publication date Dec 3, 2009
- Riso Kagaku Corporation
- Takashi Ebisawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE