Hiroshi Yamasita

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Shizudka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Dry toner
- Patent number 6,740,460
- Issue date May 25, 2004
- Ricoh Company, Ltd.
- Masami Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Methods and systems for cleaning residual toner from image developi...
- Patent number 6,125,257
- Issue date Sep 26, 2000
- Ricoh Co., Ltd.
- Takeyoshi Sekine
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Methods and systems for cleaning residual toner from image-developi...
- Patent number 5,648,842
- Issue date Jul 15, 1997
- Ricoh Company, Ltd.
- Takeyoshi Sekine
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Dry toner
- Publication number 20030113648
- Publication date Jun 19, 2003
- Masami Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Dry toner and image forming method using same
- Publication number 20030022084
- Publication date Jan 30, 2003
- Tsunemi Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY