Toshiaki Ishibashi

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical disc apparatus with different frequencies of wobble signal...
- Patent number 6,345,023
- Issue date Feb 5, 2002
- Hitachi, Ltd.
- Tetsuya Fushimi
- G11 - INFORMATION STORAGE
Information Patent Grant
Wobble signal detecting circuit, wobble abnormality detecting circu...
- Patent number 6,088,307
- Issue date Jul 11, 2000
- Hitachi, Ltd.
- Tetsuya Fushimi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc player capable of reproducing a plurality of different...
- Patent number 5,859,822
- Issue date Jan 12, 1999
- Hitachi, Ltd.
- Masayuki Inoue
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk drive
- Patent number 5,751,680
- Issue date May 12, 1998
- Hitachi, Ltd.
- Toshiaki Ishibashi
- G11 - INFORMATION STORAGE