Tomio Yoshida

Person

Katano, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for timing variable optical information recording
- Patent number 5,216,657
- Issue date Jun 1, 1993
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Angular velocity sensor and a sensor apparatus incorporating the same
- Patent number 5,131,273
- Issue date Jul 21, 1992
- Matsushita Electric Industrial Co., Ltd.
- Munehiro Tabata
- G01 - MEASURING TESTING
Information Patent Grant
Optical disk having an index mark
- Patent number 5,119,363
- Issue date Jun 2, 1992
- Matsushita Electric Industrial Company, Ltd.
- Isao Satoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk apparatus with an erase checking function
- Patent number 4,841,512
- Issue date Jun 20, 1989
- Matsushita Electric Industrial Co., Ltd.
- Shinji Kubota
- G11 - INFORMATION STORAGE
Information Patent Grant
Abnormal track skipping detection and control arrangement
- Patent number 4,759,006
- Issue date Jul 19, 1988
- Matsushita Electric Industrial Co., Ltd.
- Kenji Koishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head
- Patent number 4,724,533
- Issue date Feb 9, 1988
- Matsushita Electric Industrial Co., Ltd.
- Shunji Ohara
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording and playback apparatus using plural light spots
- Patent number 4,700,336
- Issue date Oct 13, 1987
- Matsushita Electric Industrial Co., Ltd.
- Tomio Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording and reproducing head
- Patent number 4,689,780
- Issue date Aug 25, 1987
- Matsushita Electric Industrial Company, Ltd.
- Shunji Ohara
- G02 - OPTICS
Information Patent Grant
Optical recording and reproducing apparatus having erasing beam spo...
- Patent number 4,679,184
- Issue date Jul 7, 1987
- Matsushita Electric Industrial Co., Ltd.
- Tomio Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical and reversible recording and reproducing apparatus
- Patent number 4,566,088
- Issue date Jan 21, 1986
- Matsushita Electric Industrial Co., Ltd.
- Tomio Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording and reproducing head
- Patent number 4,564,931
- Issue date Jan 14, 1986
- Matsushita Electric Industrial Co. Ltd.
- Shunji Ohara
- G02 - OPTICS
Information Patent Grant
Optical data recording and reproducing apparatus
- Patent number 4,546,462
- Issue date Oct 8, 1985
- Matsushita Electric Industrial Co., Ltd.
- Kenji Koishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for optically recording and reproducing inform...
- Patent number 4,545,044
- Issue date Oct 1, 1985
- Matsushita Electric Industrial Company, Limited
- Isao Satoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical having index mark and sector mark
- Patent number 4,535,439
- Issue date Aug 13, 1985
- Matsushita Electric Industrial Co., Ltd.
- Isao Satoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical data recording and reproducing apparatus
- Patent number 4,523,304
- Issue date Jun 11, 1985
- Matsushita Electric Industrial Co., Ltd.
- Isao Satoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor laser driving system
- Patent number 4,509,156
- Issue date Apr 2, 1985
- Matsushita Electric Industrial Co., Ltd.
- Shunji Ohara
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for locating a track on disc-like optical information car...
- Patent number 4,484,319
- Issue date Nov 20, 1984
- Matsushita Electric Industrial Co., Ltd.
- Kenji Koishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc recording and retrieval system
- Patent number 4,433,403
- Issue date Feb 21, 1984
- Matsushita Electric Industrial Co., Ltd.
- Sueki Baba
- G11 - INFORMATION STORAGE
Information Patent Grant
Light source intensity control in an optical recording and reproduc...
- Patent number 4,426,693
- Issue date Jan 17, 1984
- Matsushita Electric Industrial Co., Ltd.
- Isao Satoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording and/or reproducing device
- Patent number 4,420,828
- Issue date Dec 13, 1983
- Matsushita Electric Industrial Co., Ltd.
- Tomio Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus and method for recording, reproducing and erasing on opti...
- Patent number 4,403,318
- Issue date Sep 6, 1983
- Matsushita Electric Industrial Co., Ltd.
- Michiyoshi Nagashima
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording and reproducing disc
- Patent number 4,385,303
- Issue date May 24, 1983
- Matsushita Electric Industrial Co., Ltd.
- Nobuo Akahira
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo control system for optical system which focuses a converging...
- Patent number 4,368,526
- Issue date Jan 11, 1983
- Matsushita Electric Industrial Company, Limited
- Shunji Harigae
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording device
- Patent number 4,328,506
- Issue date May 4, 1982
- Matsushita Electric Industrial Co., Ltd.
- Tomio Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical system having diode laser light source
- Patent number 4,272,651
- Issue date Jun 9, 1981
- Matsushita Electric Industrial Co., Ltd.
- Tomio Yoshida
- G11 - INFORMATION STORAGE

Tomio Yoshida

Person

Patents Grantslast 30 patents

Method and apparatus for timing variable optical information recording

Angular velocity sensor and a sensor apparatus incorporating the same

Optical disk having an index mark

Optical disk apparatus with an erase checking function

Abnormal track skipping detection and control arrangement

Optical head

Optical recording and playback apparatus using plural light spots

Optical recording and reproducing head

Optical recording and reproducing apparatus having erasing beam spo...

Optical and reversible recording and reproducing apparatus

Optical recording and reproducing head

Optical data recording and reproducing apparatus

Method and apparatus for optically recording and reproducing inform...

Optical having index mark and sector mark

Optical data recording and reproducing apparatus

Semiconductor laser driving system

Apparatus for locating a track on disc-like optical information car...

Optical disc recording and retrieval system

Light source intensity control in an optical recording and reproduc...

Optical recording and/or reproducing device

Apparatus and method for recording, reproducing and erasing on opti...

Optical recording and reproducing disc

Servo control system for optical system which focuses a converging...

Optical recording device

Optical system having diode laser light source