Kazumi Kato

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Tochigi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for drawing tubular material
- Patent number 4,998,429
- Issue date Mar 12, 1991
- Furukawa Aluminum Co., Ltd.
- Yukio Yamanoi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of manufacturing extruded seamless hollow materials
- Patent number 4,967,583
- Issue date Nov 6, 1990
- Furukawa Aluminum Co., Ltd.
- Toshio Watanabe
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of manufacturing hollow billet and apparatus therefor
- Patent number 4,875,519
- Issue date Oct 24, 1989
- Furukawa Aluminum Co., Ltd.
- Yoh Ishii
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Tubular material drawing apparatus for manufacturing precision tube
- Patent number 4,860,568
- Issue date Aug 29, 1989
- Furukawa Aluminum Co., Ltd.
- Yukio Yamanoi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...