Ryoji Handa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical time domain reflectometer having shortened dead zone
- Patent number 5,408,310
- Issue date Apr 18, 1995
- Ando Electric Co., Ltd.
- Masaaki Furuhashi
- G01 - MEASURING TESTING
Information Patent Grant
Optical pulse generator
- Patent number 5,315,677
- Issue date May 24, 1994
- Ando Electric Co., Ltd.
- Masaaki Furahashi
- G02 - OPTICS
Information Patent Grant
High-power light pulse generating apparatus
- Patent number 5,309,455
- Issue date May 3, 1994
- Ando Electric Co., Ltd.
- Shoji Adachi
- G02 - OPTICS
Information Patent Grant
High power light pulse generator
- Patent number 5,233,619
- Issue date Aug 3, 1993
- Ando Electric Co., Ltd.
- Masaaki Furuhashi
- G02 - OPTICS