Naoyoshi Funakawa

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Koshigaya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for removing asbestos and like materials from a surface
- Patent number 4,923,251
- Issue date May 8, 1990
- Sato Kogyo Co., Ltd.
- Naoyoshi Funakawa
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Milling cutter for cutting the contaminated surface of concrete
- Patent number 4,684,297
- Issue date Aug 4, 1987
- Sato Kogyo Co., Ltd.
- Naoyoshi Funakawa
- B28 - WORKING CEMENT, CLAY, OR STONE