Hitoshi Ishii

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of discriminating different kinds of image areas, involving...
- Patent number 5,101,438
- Issue date Mar 31, 1992
- Ricoh Company, Ltd.
- Yoshimichi Kanda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of compressing halftone image data
- Patent number 4,982,293
- Issue date Jan 1, 1991
- Ricoh Company, Ltd.
- Hitoshi Ishii
- G06 - COMPUTING CALCULATING COUNTING