Tomoyasu Umeno

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Patents Grantslast 30 patents

Information Patent Grant
Carrier for developing electrostatic image, developer and developin...
- Patent number 6,051,352
- Issue date Apr 18, 2000
- Konica Corporation
- Tomoyasu Umeno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier for developing electrostatic image, developer and developin...
- Patent number 5,932,388
- Issue date Aug 3, 1999
- Konica Corporation
- Tomoyasu Umeno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner kit for electrophotography
- Patent number 5,733,692
- Issue date Mar 31, 1998
- Konica Corporation
- Tatsuya Nagase
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier for electrostatic image developer and process for the produ...
- Patent number 5,376,488
- Issue date Dec 27, 1994
- Konica Corporation
- Ken Ohmura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY