Tsukasa Yoshikawa

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Yamato, JP

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Patents Grantslast 30 patents

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- Patent number 4,408,697
- Issue date Oct 11, 1983
- Tokan Kogyo Co., Ltd.
- Tsukasa Yoshikawa
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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- Patent number 4,324,342
- Issue date Apr 13, 1982
- Tokan Kogyo Kabushiki Kaisha
- Kisaburo Yamaguchi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Easily openable cover member
- Patent number 4,324,341
- Issue date Apr 13, 1982
- Tokan Kogyo Kabushiki Kaisha
- Kisaburo Yamaguchi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Easily openable cover member
- Patent number 4,256,239
- Issue date Mar 17, 1981
- Tokan Kogyo Kabushiki Kaisha
- Kisaburo Yamaguchi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL