Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10677835 | Evaluation method for insulation performance of insulator | Yoitsu Sekiguchi, Tatsuo Takada, Yasuhiro Tanaka | 2020-06-09 |
| 5329600 | Reflection monitor optical fiber coupler manufacturing system and method | Eisuke Sasaoka, Hiroaki Takimoto, Hiroshi Suganuma, Hiroshi Yokota, Junichi Yoshikawa +1 more | 1994-07-12 |
| 5205851 | Method and apparatus for producing optical fiber coupler | Hiroshi Suganuma, Hiroaki Takimoto, Hiroshi Yokota, Kazuhiko Arimoto | 1993-04-27 |
| 5167685 | Method for manufacturing a fiber type coupler | Masayuki Shigematsu | 1992-12-01 |
| 5129020 | Wavelength selective optical fiber coupler | Masayuki Shigematsu | 1992-07-07 |
| 5098459 | Method of manufacturing optical branching and coupling device | Shuzo Suzuki | 1992-03-24 |
| 5077814 | Optical transmission line for use in an optical communication system | Masayuki Shigematsu | 1991-12-31 |
| 5046804 | Method for manufacturing a fiber type coupler | Masayuki Shigematsu | 1991-09-10 |
| 5013117 | Method for manufacturing a fiber type coupler | — | 1991-05-07 |
| 4802732 | Optical fiber cable preventing water from spreading toward cable interior | Nobuhiro Akasaka | 1989-02-07 |