Yoshio Nagaya

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing a porous ceramic panel
- Patent number 4,822,541
- Issue date Apr 18, 1989
- National House Industrial Co., Ltd.
- Satoru Nagai
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Foamed ceramic panel and method of producing the same
- Patent number 4,756,956
- Issue date Jul 12, 1988
- National House Industrial Co., Ltd.
- Satoru Nagai
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES