Takashi Otouma

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Yokohama, JA

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Patents Grantslast 30 patents

Information Patent Grant
Method for preparing glassy fiber having protuberances studded on t...
- Patent number 4,018,964
- Issue date Apr 19, 1977
- Nippon Asbestos Company, Ltd.
- Takashi Otouma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Asbestos articles having dustproof properties
- Patent number 3,967,043
- Issue date Jun 29, 1976
- Nippon Asbestos Company, Ltd.
- Takashi Otouma
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...