Ryouzo Nishikawa

Follow

Person

Gifu, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical cable and optical cable chamber element
- Patent number 6,141,472
- Issue date Oct 31, 2000
- Sumitomo Electric Industries, Ltd.
- Hiroki Ishikawa
- G02 - OPTICS
Information Patent Grant
Optical cable and optical cable chamber element
- Patent number 6,122,426
- Issue date Sep 19, 2000
- Sumitomo Electric Industries, Ltd.
- Hiroki Ishikawa
- G02 - OPTICS