Yasumasa Hiyoshi

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Patents Grantslast 30 patents

Information Patent Grant
Variable section extrusion die set and variable extrusion molding m...
- Patent number 5,989,466
- Issue date Nov 23, 1999
- Mitsubishi Aluminum Co., Ltd.
- Masatsugu Kato
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Variable section extrusion die set and variable extrusion molding m...
- Patent number 5,775,155
- Issue date Jul 7, 1998
- Mitsubishi Aluminum Co., Ltd.
- Masatsugu Kato
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...