Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872740 | Endoscope | Naoyuki Fukahori, Kenichi Sakunaga | 1989-10-10 |
| 4852664 | Hydraulic impact tool | Hiroshi Okada | 1989-08-01 |
| 4842365 | Multifilament type plastic optical fiber and process for preparation thereof | Kenichi Sakunaga, Naoyuki Fukahori | 1989-06-27 |
| 4812012 | Optical fiber array having fiber islands in a polymer sea | Kenichi Sakunaga, Naoyuki Fukahori | 1989-03-14 |
| 4798445 | Plastic optical fiber and process for producing the same | Takashi Yamamoto, Katsuhiko Shimada, Ryuji Murata, Yasuteru Tahara, Kenichi Sakunaga | 1989-01-17 |