Graphtec Corp.

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Digitizer and position determination method therefor
- Patent number 5,670,754
- Issue date Sep 23, 1997
- Graphtec Corp.
- Keiichi Matsushima
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Tablet position digitizer
- Patent number 5,414,226
- Issue date May 9, 1995
- Graphtec Corp.
- Keiichi Matsushima
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Ink printing head with variable-size heat elements
- Patent number 5,121,143
- Issue date Jun 9, 1992
- Graphtec Corp.
- Mamoru Hayamizu
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printed circuit board function testing system
- Patent number 5,043,910
- Issue date Aug 27, 1991
- Graphtec Kabushikikaisha
- Takamasa Chiba
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

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