Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6690872 | Silica based optical waveguide and production method therefor | Takashi Sasaki, Nobuhiro Akasaka, Shigeru Tanaka, Chisai Hirose | 2004-02-10 |
SH
Shigeru Hirai
Overall (2004): #117,151 of 270,089Top 45%
1
Patents 2004