Hisayoshi Kato

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image forming electrophotography apparatus and magnetic developing...
- Patent number 6,487,384
- Issue date Nov 26, 2002
- Hitachi Koki Co., Ltd.
- Hisao Okada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color image forming method and device using potential division deve...
- Patent number 6,240,270
- Issue date May 29, 2001
- Hitachi Koki Co., Ltd.
- Teruaki Mitsuya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic image forming apparatus
- Patent number 6,047,147
- Issue date Apr 4, 2000
- Hitachi Koki Co., Ltd.
- Koji Kato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Image forming apparatus and developing unit used therein
- Publication number 20020057930
- Publication date May 16, 2002
- Hisao Okada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY