Mitsugi Yoshiyagawa

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Yokkaichi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing high-purity metallic silicon and apparatus the...
- Patent number 5,104,633
- Issue date Apr 14, 1992
- Kawasaki Steel Corporation, Technical Research Division
- Yasuhiko Sakaguchi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Glass fibers having low dielectric constant
- Patent number 4,824,806
- Issue date Apr 25, 1989
- Nippon Sheet Glass Co., Ltd.
- Koji Yokoi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Process for producing silica in fine powder form
- Patent number 4,678,652
- Issue date Jul 7, 1987
- Nippon Sheet Glass Co., Ltd.
- Hiroyuki Tamenori
- C01 - INORGANIC CHEMISTRY