Masaki Tokuhashi

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cleaning device for an image forming apparatus
- Patent number 5,396,319
- Issue date Mar 7, 1995
- Ricoh Company, Ltd.
- Masaki Tokuhashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image density control method for an image forming apparatus
- Patent number 5,258,248
- Issue date Nov 2, 1993
- Ricoh Company, Ltd.
- Masaki Tokuhashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image density control method for an image forming apparatus
- Patent number 5,028,960
- Issue date Jul 2, 1991
- Ricoh Company, Ltd.
- Wataru Yasuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY