Tetsuo Matsushita

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Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus improved in toner supply operation
- Patent number 5,253,020
- Issue date Oct 12, 1993
- Minolta Camera Kabushiki Kaisha
- Tetsuo Matsushita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus for initial set-up of developer unit in an image forming...
- Patent number 5,218,407
- Issue date Jun 8, 1993
- Minolta Camera Kabushiki Kaisha
- Tetsuo Matsushita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Genuine security article distinguishing system for an image forming...
- Patent number 5,132,729
- Issue date Jul 21, 1992
- Minolta Camera Kabushiki Kaisha
- Tetsuo Matsushita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY