Koji Tsuruta

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Display tube assembly and mounting process thereof
- Patent number 5,045,974
- Issue date Sep 3, 1991
- Sony Corporation
- Akio Ohkoshi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Electron beam indicator tube with accelerating electrode
- Patent number 4,857,800
- Issue date Aug 15, 1989
- Sony Corporation
- Akio Ohkoshi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fluorescent display apparatus
- Patent number 4,734,623
- Issue date Mar 29, 1988
- Sony Corporation
- Akio Ohkoshi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Light source display for a large picture screen
- Patent number 4,727,284
- Issue date Feb 23, 1988
- Sony Corporation
- Akio Ohkoshi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Luminescent display device
- Patent number 4,710,765
- Issue date Dec 1, 1987
- Sony Corporation
- Akio Ohkoshi
- H01 - BASIC ELECTRIC ELEMENTS