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Tsurugashima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical waveguide recording medium and apparatus for playing the same
- Patent number 5,285,274
- Issue date Feb 8, 1994
- Pioneer Electronic Corporation
- Naohiro Tanno
- G11 - INFORMATION STORAGE
Information Patent Grant
Three-dimensional optical recording medium and optical information...
- Patent number 5,283,777
- Issue date Feb 1, 1994
- Pioneer Electronic Corporation
- Naohiro Tanno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical waveguide recording medium playing apparatus
- Patent number 5,233,582
- Issue date Aug 3, 1993
- Pioneer Electronic Corporation
- Naohiro Tanno
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk manufacturing apparatus
- Patent number 5,216,219
- Issue date Jun 1, 1993
- Pioneer Electronic Corporation
- Shinichi Yokozeki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical waveguide recording medium playing apparatus
- Patent number 5,214,633
- Issue date May 25, 1993
- Pioneer Electronic Corporation
- Naohiro Tanno
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of producing a carbon diaphragm for an acoustic instrument
- Patent number 4,221,773
- Issue date Sep 9, 1980
- Pioneer Electronic Corporation
- Tsunehiro Tsukagoshi
- G10 - MUSICAL INSTRUMENTS ACOUSTICS