Tasuku Tsuruga

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Laser vision disc with digital sound (LDD) disc player for reproduc...
- Patent number 5,257,253
- Issue date Oct 26, 1993
- Pioneer Electronic Corporation
- Hiroshi Otsubo
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc player for playing different types of discs which automaticall...
- Patent number 5,177,728
- Issue date Jan 5, 1993
- Pioneer Electronic Corporation
- Hiroshi Otsubo
- G11 - INFORMATION STORAGE
Information Patent Grant
Reproducing apparatus including means for gradually varying a mixin...
- Patent number 5,033,036
- Issue date Jul 16, 1991
- Pioneer Electronic Corporation
- Seiji Ohmori
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS