Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9128236 | Optical fiber | Tetsuya Nakanishi, Tatsuya Konishi | 2015-09-08 |
| 8989545 | Optical fiber and optical transmission system | Tetsuya Nakanishi, Tatsuya Konishi | 2015-03-24 |
| 8687936 | Optical fiber, optical transmission system, and method of making optical fiber | Tetsuya Nakanishi, Tatsuya Konishi | 2014-04-01 |
| 8346041 | Optical communications system | Eisuke Sasaoka | 2013-01-01 |
| 8145024 | Optical communications system | Eisuke Sasaoka | 2012-03-27 |
| 6935139 | Method of manufacturing optical fiber | Katsuya Nagayama, Takayuki Shimazu | 2005-08-30 |
| 6928840 | Optical fiber producing method | Katsuya Nagayama, Yuichi Ohga, Ichiro Tsuchiya | 2005-08-16 |
| 6907757 | Drawing method of optical fiber and drawing furnace | Katsuya Nagayama, Ichiro Tsuchiya, Masashi Onishi | 2005-06-21 |
| 6853784 | Optical fiber | Makoto Shimizu, Yuji Kubo | 2005-02-08 |
| 6810692 | Method of controlling an upper portion of an optical fiber draw furnace | Toshiki Taru, Katsuya Nagayama, Ichiro Tsuchiya | 2004-11-02 |
| 6735983 | Optical fiber drawing method and drawing furnace | Toshiki Taru, Ichiro Tsuchiya, Katsuyuki Tsuneishi, Katsuya Nagayama | 2004-05-18 |
| 6668592 | Optical fiber drawing furnace having adjustable partitions | Toshiki Taru, Katsuya Nagayama, Ichiro Tsuchiya | 2003-12-30 |
| 6567597 | Optical fiber, method of making the same, and optical transmission system including the same | Eisuke Sasaoka, Masashi Onishi, Katsuya Nagayama, Kaoru Okuno | 2003-05-20 |
| 6546760 | Optical fiber drawing furnace with a zig zag heating element | Ichiro Tsuchiya, Kohei Kobayashi, Hiroaki Ohta, Katsuyuki Tsuneishi, Hideo Miyaki +1 more | 2003-04-15 |
| 6530243 | Method of making an optical fiber with an improved UV-curable resin | Ichiro Tsuchiya, Yasuhiro Naganuma | 2003-03-11 |
| 6502428 | Manufacturing method of an optical fiber | Masashi Onishi, Katsuya Nagayama | 2003-01-07 |
| 6399158 | Method and apparatus for curing ultraviolet-curing resin | Katsuya Nagayama, Ichiro Tsuchiya | 2002-06-04 |