Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840482 | Method of coated fiber identification in optical transmission network | Masayuki Shigematsu | 1989-06-20 |
| 4832720 | Method for producing multi-core optical fiber | Minoru Watanabe, Hiroshi Yokota, Hiroshi Suganuma | 1989-05-23 |
| 4830456 | Optical connector and process for producing the same | Toshiaki Kakii, Kazuhito Saito | 1989-05-16 |
| 4820014 | Optical cable | Akira Nishimura | 1989-04-11 |
| 4818059 | Optical connector and splicer | Toshiaki Kakii, Yasuo Asano | 1989-04-04 |
| 4804247 | Quartz glass optical fiber | Michihisa Kyoto, Minoru Watanabe, Motohiro Nakahara | 1989-02-14 |