Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692088 | Optical waveguide tube | Hideo Sugiyama, Itsuo Tanuma | 1997-11-25 |
| 5684913 | Optical waveguide tube and method of making | Hideo Sugiyama, Masato Sugimachi, Masato Yoshikawa, Itsuo Tanuma, Kazuo Naito +1 more | 1997-11-04 |
| 5681611 | Light guide and method for making | Masato Yoshikawa, Itsuo Tanuma, Kazuo Naito, Masato Sugimachi, Hideo Sugiyama | 1997-10-28 |
| 5638480 | Optical waveguide hose | Itsuo Tanuma, Kazuo Naito | 1997-06-10 |