Yoichiro Watanabe

Person

Fuji, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of forming colored image by use of inorganic toner, inorgani...
- Patent number 5,750,299
- Issue date May 12, 1998
- Ricoh Company, Ltd.
- Kouchi Ohshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for developing latent electrostatic images
- Patent number 5,418,103
- Issue date May 23, 1995
- Ricoh Company, Ltd.
- Kenkichi Muto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of preparing composite particles comprising adhering wax par...
- Patent number 5,368,972
- Issue date Nov 29, 1994
- Ricoh Company, Ltd.
- Hiroshi Yamashita
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dry-type developer
- Patent number 5,288,577
- Issue date Feb 22, 1994
- Ricoh Company, Ltd.
- Kimitoshi Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dry toner for developing latent electrostatic images with improved...
- Patent number 4,956,258
- Issue date Sep 11, 1990
- Ricoh Company, Ltd.
- Yoichiro Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier particles for use in a two-component dry-type developer
- Patent number 4,927,728
- Issue date May 22, 1990
- Ricoh Company, Ltd.
- Tetsuo Isoda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for developing latent electrostatic images
- Patent number 4,908,290
- Issue date Mar 13, 1990
- Ricoh Company, Ltd.
- Yoichiro Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Silicone resin coated carrier particles for use in a two-component...
- Patent number 4,584,254
- Issue date Apr 22, 1986
- Ricoh Company, Ltd.
- Nobuhiro Nakayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Yoichiro Watanabe

Person

Patents Grantslast 30 patents

Method of forming colored image by use of inorganic toner, inorgani...

Toner for developing latent electrostatic images

Method of preparing composite particles comprising adhering wax par...

Dry-type developer

Dry toner for developing latent electrostatic images with improved...

Carrier particles for use in a two-component dry-type developer

Toner for developing latent electrostatic images

Silicone resin coated carrier particles for use in a two-component...