Katsuya Kawai

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Katsuta, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electrostatic recording apparatus
- Patent number 6,157,798
- Issue date Dec 5, 2000
- Hitachi Koki Co., Ltd.
- Tsuneaki Kawanishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic apparatus
- Patent number 5,923,933
- Issue date Jul 13, 1999
- Hitachi Koki Co., Ltd.
- Masayasu Anzai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for recording electrostatic image and electrostatic recording...
- Patent number 5,832,347
- Issue date Nov 3, 1998
- Hitachi Koki Co., Ltd.
- Katsuya Kawai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Bias cleaning system and electrostatic printing apparatus therewith...
- Patent number 5,600,405
- Issue date Feb 4, 1997
- Hitachi, Ltd.
- Takao Umeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic recording apparatus having improved residual to...
- Patent number 5,481,351
- Issue date Jan 2, 1996
- Hitachi Koki Co., Ltd.
- Katsuya Kawai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Toner for developing electrostatic charge image and image forming a...
- Publication number 20020022189
- Publication date Feb 21, 2002
- HITACHI KOKI CO., LTD.
- Tsuneaki Kawanishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY