Tadashi Okada

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Hadano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Information print system and image processing apparatus
- Patent number 6,204,933
- Issue date Mar 20, 2001
- Hitachi, Ltd.
- Eiji Yoshino
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Distributed PWM halftoning unit and printer
- Patent number 6,191,868
- Issue date Feb 20, 2001
- Hitachi, Ltd.
- Takeshi Shibuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Printing system
- Patent number 5,625,757
- Issue date Apr 29, 1997
- Hitachi, Ltd.
- Seiji Kageyama
- G06 - COMPUTING CALCULATING COUNTING