Ryozo Sugawara

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Sodegaura, JP

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Patents Grantslast 30 patents

Information Patent Grant
Toner for non-magnetic single component development
- Patent number 6,248,493
- Issue date Jun 19, 2001
- Dainippon Ink and Chemicals, Inc.
- Katsuyuki Ogura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner composition and developer for electrostatic image development
- Patent number 6,238,836
- Issue date May 29, 2001
- Dainippon Ink Chemicals, Inc.
- Masanobu Nakamura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY