Hisakazu Koyama

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Nagano-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Data processing device having a maintenance counter function
- Patent number 8,006,051
- Issue date Aug 23, 2011
- Seiko Epson Corporation
- Takashi Takehana
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data processing apparatus and control method for a data processing...
- Patent number 7,634,648
- Issue date Dec 15, 2009
- Seiko Epson Corporation
- Hisakazu Koyama
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
MEDIA PROCESSING DEVICE AND METHOD OF CONTROLLING A MEDIA PROCESSIN...
- Publication number 20130080806
- Publication date Mar 28, 2013
- SEIKO EPSON CORPORATION
- Hisakazu Koyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Data processing device having a maintenance counter function
- Publication number 20070028061
- Publication date Feb 1, 2007
- SEIKO EPSON CORPORATION
- Takashi Takehana
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Data processing apparatus and control method for a data processing...
- Publication number 20070016763
- Publication date Jan 18, 2007
- SEIKO EPSON CORPORATION
- Hisakazu Koyama
- G06 - COMPUTING CALCULATING COUNTING