Goichi Yamakawa

Person

Hachioji, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Toner for electrophotography
- Patent number 4,968,574
- Issue date Nov 6, 1990
- Sekisui Chemical Co., Ltd.
- Hideaki Morita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for developing an electrostatically charged image
- Patent number 4,657,837
- Issue date Apr 14, 1987
- Konishiroku Photo Industry Co., Ltd.
- Hideaki Morita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Triboelectric stabilized toner for developing electrically charged...
- Patent number 4,623,604
- Issue date Nov 18, 1986
- Konishiroku Photo Industry Co., Ltd.
- Hiroyuki Takagiwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer composition for developing an electrostatic image
- Patent number 4,572,885
- Issue date Feb 25, 1986
- Konishiroku Photo Industry Co., Ltd.
- Keiji Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic image forming toner
- Patent number 4,564,573
- Issue date Jan 14, 1986
- Konishiroku Photo Industry Co., Ltd.
- Hideaki Morita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing material for electrophotography, process for preparation
- Patent number 4,518,674
- Issue date May 21, 1985
- Konishiroku Photo Industry Co., Ltd.
- Shotaro Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for manufacturing toner for electrophotography
- Patent number 4,514,487
- Issue date Apr 30, 1985
- Konishiroku Photo Industry Co., Ltd.
- Takahira Kasuya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for developing of electrostatic latent image
- Patent number 4,473,628
- Issue date Sep 25, 1984
- Konishiroku Photo Industry Co., Ltd.
- Takahira Kasuya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Iron powder developing carrier and the manufacturing method of the...
- Patent number 4,287,283
- Issue date Sep 1, 1981
- Konishiroku Photo Industry Co., Ltd.
- Shotaro Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for developing electrostatic latent images comprising an amin...
- Patent number 4,107,062
- Issue date Aug 15, 1978
- Konishiroku Photo Industry Co., Ltd.
- Makoto Tomono
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Goichi Yamakawa

Person

Patents Grantslast 30 patents

Toner for electrophotography

Toner for developing an electrostatically charged image

Triboelectric stabilized toner for developing electrically charged...

Developer composition for developing an electrostatic image

Electrostatic image forming toner

Developing material for electrophotography, process for preparation

Method for manufacturing toner for electrophotography

Toner for developing of electrostatic latent image

Iron powder developing carrier and the manufacturing method of the...

Toner for developing electrostatic latent images comprising an amin...