Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6347537 | Method of drawing a twisted optical fiber | Masashi Onishi, Koji Amemiya, Masahiro Takagi | 2002-02-19 |
| 6076376 | Method of making an optical fiber having an imparted twist | Masashi Onishi, Koji Amemiya, Masahiro Takagi | 2000-06-20 |
| 5627930 | Arrayed optical fiber coupler and method of manufacturing the same | Shigeru Semura, Yuji Kobayashi, Toshiyuki Wakinosono, Tomoyuki Hattori, Hiroshi Suganuma +2 more | 1997-05-06 |
| 5620494 | Method for manufacturing optical fiber coupler | Eisuke Sasaoka, Yuji Kobayashi, Tomomi Moriya, Shigeru Semura | 1997-04-15 |
| 5364428 | Method for producing glass preform for optical fiber | Michihisa Kyoto, Akira Urano, Hideo Kakuzen | 1994-11-15 |
| 5357334 | Spectroanalyzer correcting for deterioration of transmissibility | Haruhiko Aikawa, Minoru Watanabe, Yoshiaki Ichige, Fumitoshi Okamoto | 1994-10-18 |
| 5348564 | Method for manufacturing a hermetically coated optical fiber | Haruhiko Aikawa, Katsuya Nagayama, Ichiro Yoshimura, Yutaka Katsuyama, Nobuyuki Yoshizawa | 1994-09-20 |
| 5338328 | Apparatus of manufacturing hermetic coating optical fiber | Haruhiko Aikawa, Toshio Danzuka | 1994-08-16 |
| 5320659 | Method of forming a carbon coated optical fiber with co-current reactant flow | Masaharu Ooe, Kohei Kobayashi, Gotaro Tanaka, Minoru Watanabe | 1994-06-14 |
| 5296011 | Method of manufacturing hermetic coating optical fiber | Haruhiko Aikawa, Toshio Danzuka | 1994-03-22 |
| 5281247 | Method for producing hermetic coated optical fiber | Haruhiko Aikawa, Katsuya Nagayama, Ichiro Yoshimura, Yutaka Katsuyama, Nobuyuki Yoshizawa | 1994-01-25 |
| 5265179 | Method of manufacturing fiber-optic collimators | Shigeru Hirai, Yasuji Hattori, Masayuki Nishimura | 1993-11-23 |
| 5235666 | Production of a hermetically coated optical fiber | Masaharu Ooe, Gotaro Tanaka, Nobuyuki Yoshizawa | 1993-08-10 |
| 5217516 | Method of making optical glass article | Hiroo Kanamori, Akira Urano, Michihisa Kyoto | 1993-06-08 |
| 5208645 | Method and apparatus for optically measuring the thickness of a coating | Akira Inoue, Haruhiko Aikawa | 1993-05-04 |
| 5203899 | Method for producing glass preform for optical fiber | Michihisa Kyoto, Akira Urano, Hideo Kakuzen | 1993-04-20 |
| 5194080 | Apparatus for producing hermetic coated optical fiber | Haruhiko Aikawa, Katsuya Nagayama, Ichiro Yoshimura, Yutaka Katsuyama, Nobuyuki Yoshizawa | 1993-03-16 |
| 5163987 | Method for producing glass preform for optical fiber | Michihisa Kyoto, Hiroo Kanamori | 1992-11-17 |
| 5158587 | Method for producing glass preform for optical fiber | Michihisa Kyoto, Akira Urano, Minoru Watanabe | 1992-10-27 |
| 5157755 | Hermetically coated optical fiber | Masaharu Ooe, Gotaro Tanaka, Nobuyuki Yoshizawa | 1992-10-20 |
| 5145507 | Method for producing glass preform for optical fiber | Michihisa Kyoto, Akira Urano, Hideo Kakuzen | 1992-09-08 |
| 5125066 | Fiber optical amplifier | Takashi Kogo, Masaharu Ooe, Yutaka Katsuyama | 1992-06-23 |
| 5114338 | Furnace for heating highly pure quartz preform for optical fiber | Ichiro Tsuchiya, Shinji Ishikawa, Masahide Saitoh | 1992-05-19 |
| 5055121 | Method for producing glass preform for optical fiber | Hiroo Kanamori, Gotaro Tanaka | 1991-10-08 |
| 5053068 | High pressure fluorine method for producing preform for optical fiber | Michihisa Kyoto, Akira Urano, Minoru Watanabe | 1991-10-01 |