Yukio Tokunaga

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Yokosuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Heat-sensitive magnetic transfer element
- Patent number 4,581,283
- Issue date Apr 8, 1986
- Nippon Telegraph & Telephone Public Corporation
- Yukio Tokunaga
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Heat-sensitive magnetic transfer element
- Patent number 4,463,034
- Issue date Jul 31, 1984
- Nippon Telegraph and Telephone Public Corp.
- Yukio Tokunaga
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical print head with graded index fiber arrays for optical print...
- Patent number 4,376,282
- Issue date Mar 8, 1983
- Oki Electric Industry Co., Ltd.
- Shintaro Kotani
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Optical print head for optical printing devices
- Patent number 4,318,597
- Issue date Mar 9, 1982
- Oki Electric Industry Co., Ltd.
- Shintaro Kotani
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Heat-sensitive transfer element
- Patent number 4,315,643
- Issue date Feb 16, 1982
- Nippon Telegraph and Telephone Public Corp.
- Yukio Tokunaga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Electrostatic recording method and apparatus by doubly controlling...
- Patent number 4,255,043
- Issue date Mar 10, 1981
- Nippon Telegraph & Telephone Public Corporation
- Yasushi Hoshino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY