Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9121995 | Optical fiber having holes | Shoji Tanigawa, Katsuhiro Takenaga, Shoichiro Matsuo, Takashi Matsui, Taiji SAKAMOTO +1 more | 2015-09-01 |
| 6004675 | Optical glass fiber | Nobuhiro Akasaka, Tatsuya Kakuta, Kohei Kobayashi, Yasuo Matsuda | 1999-12-21 |
| 5638478 | Optical fiber cable having a grooved spacer formed with one or more SZ-spiral grooves on its outer circumference along the longitudinal direction of the spacer the inverting angle of each groove being at least 180.degree. | Daisuke Iwakura, Akihiro Otake, Kazuo Hogari, Shigekazu Hayami | 1997-06-10 |
| 5422182 | Light transmitting glass fiber | Kazumasa Oishi, Nobuhiro Akasaka, Tatsuya Kakuta, Wataru Katsurashima, Yasuo Matsuda | 1995-06-06 |
| 5381503 | Mode field diameter conversion fiber | Hiroo Kanamori, Koji Nakazato, Masayuki Nishimura | 1995-01-10 |
| 5332165 | Transmission cable termination box, and transmission cable installation and recovering method | Hiroaki Sano, Yoshinobu Kitayama, Shigeru Tanaka, Hiroyuki Akimoto | 1994-07-26 |
| 5268986 | Redundant length treatment mechanism for optical fiber at terminal of optical cable | Toshiaki Kakii, Hidetoshi Ishida, Tomohiko Ueda, Kyoji Maruyama, Tadashi Haibara | 1993-12-07 |
| 5193005 | Channel selecting apparatus having a channel skip function | — | 1993-03-09 |