Akio Kuwahara

Follow

Person

Tokushima, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical telephone using optical modulator
- Patent number 5,357,362
- Issue date Oct 18, 1994
- Nippon Telegraph & Telephone Corporation
- Yuji Azuma
- G02 - OPTICS
Information Patent Grant
Optical modulation method operable in an optical transmission path...
- Patent number 5,259,045
- Issue date Nov 2, 1993
- Nippon Telegraph & Telephone Corporation
- Yuji Azuma
- G02 - OPTICS