Kazuhisa Ohtsubo

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus with specific document determining module a...
- Patent number 7,038,228
- Issue date May 2, 2006
- Ricoh Company, Ltd.
- Yutaka Hasegawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Specific document determining apparatus including a microwave sensor
- Patent number 6,949,757
- Issue date Sep 27, 2005
- Ricoh Company, Ltd.
- Yutaka Hasegawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus with specific document module having a micr...
- Patent number 6,696,696
- Issue date Feb 24, 2004
- Ricoh Company, Ltd.
- Yutaka Hasegawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Specific document determining apparatus, image reading apparatus, s...
- Patent number 6,025,603
- Issue date Feb 15, 2000
- Ricoh Company, Ltd.
- Yutaka Hasegawa
- G07 - CHECKING-DEVICES

Patents Applicationslast 30 patents

Information Patent Application
Specific document determining apparatus, image reading apparatus, s...
- Publication number 20040075066
- Publication date Apr 22, 2004
- Yutaka Hasegawa
- G07 - CHECKING-DEVICES
Information Patent Application
Image forming apparatus with specific document determining module a...
- Publication number 20040046988
- Publication date Mar 11, 2004
- Yutaka Hasegawa
- G07 - CHECKING-DEVICES