Toshikazu Ohmatsu

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Nishi-ku, Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Expansion joint device for use in interior designs
- Patent number 4,956,955
- Issue date Sep 18, 1990
- Toshikazu Ohmatsu
- E04 - BUILDING
Information Patent Grant
Expansion joints
- Patent number 4,914,884
- Issue date Apr 10, 1990
- Toshikazu Ohmatsu
- E04 - BUILDING
Information Patent Grant
Expansion joints
- Patent number 4,833,851
- Issue date May 30, 1989
- Toshikazu Ohmatsu
- E04 - BUILDING