Takao Takizawa

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Toubu-machi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical attenuator and a method of making the same, an optical fibe...
- Patent number 5,875,277
- Issue date Feb 23, 1999
- Totoku Electric Co., Ltd.
- Ryu Izawa
- G02 - OPTICS