Tsuguo Sato

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a porous preform for an optical fiber
- Patent number 5,711,903
- Issue date Jan 27, 1998
- The Furukawa Electric Co., Ltd.
- Takeshi Yagi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method of manufacturing optical fiber preform
- Patent number 5,352,259
- Issue date Oct 4, 1994
- The Furukawa Electric Co., Ltd.
- Masato Oku
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of manufacturing a silica glass preform
- Patent number 5,244,485
- Issue date Sep 14, 1993
- The Furukawa Electric Co., Ltd.
- Hiroshi Hihara
- C03 - GLASS MINERAL OR SLAG WOOL