Hiroshi Yasuoka

Person

Fujisawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
High capacity data storage method and system using independently co...
- Patent number 5,574,881
- Issue date Nov 12, 1996
- Hitachi, Ltd.
- Hiroshi Yasuoka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for recording and reproducing information using at least two...
- Patent number 5,404,348
- Issue date Apr 4, 1995
- Hitachi, Ltd.
- Motoyasu Terao
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording waveform for mark-length modulation optical recording
- Patent number 5,257,256
- Issue date Oct 26, 1993
- Hitachi, Ltd.
- Motoyasu Terao
- G11 - INFORMATION STORAGE
Information Patent Grant
Stack type optical disc apparatus, sealed and separate type optical...
- Patent number 5,235,591
- Issue date Aug 10, 1993
- Hitachi, Ltd.
- Shigeru Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Small-sized optical memory device and information processing appara...
- Patent number 5,109,374
- Issue date Apr 28, 1992
- Hitachi, Ltd.
- Yoshito Tsunoda
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording method using a modulated recording beam at hi...
- Patent number 5,084,857
- Issue date Jan 28, 1992
- Hitachi, Ltd.
- Yasushi Miyauchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording waveform for mark-length modulation optical recording
- Patent number 5,038,338
- Issue date Aug 6, 1991
- Hitachi, Ltd.
- Motoyasu Terao
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information phase change recording medium having double pro...
- Patent number 4,984,231
- Issue date Jan 8, 1991
- Hitachi, Ltd.
- Hiroshi Yasuoka
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording medium and apparatus using reversible phase c...
- Patent number 4,982,396
- Issue date Jan 1, 1991
- Hitachi, Ltd.
- Hiroshi Yasuoka
- G11 - INFORMATION STORAGE

Hiroshi Yasuoka

Person

Patents Grantslast 30 patents

High capacity data storage method and system using independently co...

Method for recording and reproducing information using at least two...

Recording waveform for mark-length modulation optical recording

Stack type optical disc apparatus, sealed and separate type optical...

Small-sized optical memory device and information processing appara...

Information recording method using a modulated recording beam at hi...

Recording waveform for mark-length modulation optical recording

Optical information phase change recording medium having double pro...

Information recording medium and apparatus using reversible phase c...