Seiichi Nakazato

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for production of bonded can of key-opening type
- Patent number 4,556,354
- Issue date Dec 3, 1985
- Toyo Seikan Kaisha, Ltd.
- Michiko Tsurumaru
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Bonded can of key-opening type and process for production thereof
- Patent number 4,553,682
- Issue date Nov 19, 1985
- Toyo Seikan Kaisha, Ltd.
- Michiko Tsurumaru
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...