Tadashi Harayama

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Kashiwa-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ferrite carrier for electrophotographic developer and method for pr...
- Patent number 7,442,483
- Issue date Oct 28, 2008
- Powdertech Co., Ltd.
- Hiromichi Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
FERRITE PARTICLES AND PRODUCTION METHOD THEREOF
- Publication number 20090246526
- Publication date Oct 1, 2009
- POWDERTECH CO., LTD.
- Takao SUGIURA
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Ferrite carrier for electrophotographic developer and method for pr...
- Publication number 20060003248
- Publication date Jan 5, 2006
- POWDERTECH CO., LTD.
- Hiromichi Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY