Takayuki Ishikawa

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Data editing method and apparatus therefor
- Patent number 5,712,654
- Issue date Jan 27, 1998
- Hitachi, Ltd.
- Yasumasa Kawashima
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Curved surface generating method and apparatus therefor
- Patent number 5,621,872
- Issue date Apr 15, 1997
- Hitachi, Ltd.
- Shinji Tokumasu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Design supporting apparatus and method for performing design work a...
- Patent number 5,604,886
- Issue date Feb 18, 1997
- Hitachi, Ltd.
- Yasumasa Kawashima
- G06 - COMPUTING CALCULATING COUNTING