Hitoshi Yanagihara

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Video optical disk system compatible with both read only and writab...
- Patent number 5,539,710
- Issue date Jul 23, 1996
- Hitachi, Ltd.
- Nobuhiro Tokushuku
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information medium having paired wobble pitts with continuo...
- Patent number 4,996,682
- Issue date Feb 26, 1991
- Hitachi, Ltd.
- Hitoshi Yanagihara
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information medium with sample mark area and multiple trans...
- Patent number 4,991,163
- Issue date Feb 5, 1991
- Hitachi, Ltd.
- Nobuhiro Tokushuku
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head
- Patent number 4,799,118
- Issue date Jan 17, 1989
- Hitachi, Ltd.
- Masamichi Yamada
- G11 - INFORMATION STORAGE
Information Patent Grant
Surface acoustic wave device
- Patent number 4,396,851
- Issue date Aug 2, 1983
- Hitachi, Ltd.
- Kiyoharu Kishimoto
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Elastic surface wave device
- Patent number 4,201,964
- Issue date May 6, 1980
- Hitachi, Ltd.
- Yoshihiko Noro
- H03 - BASIC ELECTRONIC CIRCUITRY