Hiroyasu Otsubo

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Data recording and reproducing apparatus
- Patent number 8,175,443
- Issue date May 8, 2012
- Hitachi, Ltd.
- Akinobu Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data recording and reproducing apparatus and data recording and rep...
- Patent number 7,995,903
- Issue date Aug 9, 2011
- Hitachi, Ltd.
- Toshihiro Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image and sound recording/reproducing apparatus
- Patent number 6,195,503
- Issue date Feb 27, 2001
- Hitachi, Ltd.
- Hiroyasu Ikedo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Video camera having a .gamma.-correction circuit for correcting lev...
- Patent number 5,194,943
- Issue date Mar 16, 1993
- Hitachi, Ltd.
- Tsutomu Tomita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Data recording and reproducing apparatus
- Publication number 20080019666
- Publication date Jan 24, 2008
- Toshihiro Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Data recording and reproducing apparatus
- Publication number 20080019668
- Publication date Jan 24, 2008
- Hitachi, Ltd.
- Akinobu Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Radio communication apparatus and radio communication method
- Publication number 20050046616
- Publication date Mar 3, 2005
- Hirotomo Sai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE