Shinichi Kadowaki

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Hirakata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Recording medium, a method for producing the same, a control method...
- Patent number 5,815,485
- Issue date Sep 29, 1998
- Matsushita Electric Industrial Co., Ltd.
- Shinichi Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup head wherein an error signal is produced by detectin...
- Patent number 5,293,367
- Issue date Mar 8, 1994
- Matsushita Electric Industrial Co., Ltd.
- Shinichi Kadowaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pick-up head apparatus wherein hollographic optical element...
- Patent number 5,293,038
- Issue date Mar 8, 1994
- Matsushita Electric Industrial Co., Ltd.
- Shinichi Kadowaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup head
- Patent number 5,283,771
- Issue date Feb 1, 1994
- Matsushita Electric Industrial Co., Ltd.
- Shinichi Kadowaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Focusing-error detecting apparatus with a simple photodetector unit...
- Patent number 5,144,606
- Issue date Sep 1, 1992
- Matsushita Electric Industrial Co., Ltd.
- Shinichi Kadowaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup head having a hologram-associated objective lens and...
- Patent number 5,111,448
- Issue date May 5, 1992
- Matsushita Electric Industrial Co., Ltd.
- Yoshiaki Komma
- G11 - INFORMATION STORAGE