Isamu Matsumoto

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Ishikawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Forging die and upset forging method
- Patent number 6,250,128
- Issue date Jun 26, 2001
- Komatsu Industries Corporation
- Hiroyuki Ando
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of manufacturing scroll members for use in a rotary compressor
- Patent number 4,720,899
- Issue date Jan 26, 1988
- Kabushiki Kaisha Komatsu Seisakusho
- Hiroyuki Ando
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...