Katsunobu Takikawa

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Patents Grantslast 30 patents

Information Patent Grant
Defective-portion marking method, defective-portion marking apparat...
- Patent number 6,321,643
- Issue date Nov 27, 2001
- Takikama Engineering Co., Ltd.
- Katsunobu Takikawa
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Device for marking an elongate material
- Patent number 5,727,454
- Issue date Mar 17, 1998
- Takikawa Engineering Co., Ltd.
- Katsunobu Takikawa
- G01 - MEASURING TESTING