Kiyohisa Koyama

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image forming device and remote monitoring system for the same
- Patent number 7,035,554
- Issue date Apr 25, 2006
- Ricoh Company, Ltd.
- Masaichi Sawada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Remote maintenance and diagnosis of office or domestic appliances
- Patent number 6,947,675
- Issue date Sep 20, 2005
- Ricoh Company, Ltd.
- Kiyohisa Koyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image forming device and remote monitoring system for the same
- Patent number 6,876,819
- Issue date Apr 5, 2005
- Ricoh Company, Ltd.
- Masaichi Sawada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Image forming device and remote monitoring system for the same
- Publication number 20050147420
- Publication date Jul 7, 2005
- Masaichi Sawada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Remote maintenance and diagnosis of office or domestic appliances
- Publication number 20020183978
- Publication date Dec 5, 2002
- Kiyohisa Koyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Image forming device and remote monitoring system for the same
- Publication number 20020091971
- Publication date Jul 11, 2002
- Masaichi Sawada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE