Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6935139 | Method of manufacturing optical fiber | Kazuya Kuwahara, Takayuki Shimazu | 2005-08-30 |
| 6928840 | Optical fiber producing method | Yuichi Ohga, Kazuya Kuwahara, Ichiro Tsuchiya | 2005-08-16 |
| 6907757 | Drawing method of optical fiber and drawing furnace | Kazuya Kuwahara, Ichiro Tsuchiya, Masashi Onishi | 2005-06-21 |
| 6892019 | Optical fiber, method of making optical fiber preform, and method of making optical fiber | Kiichiro Kawasaki, Takatoshi Kato | 2005-05-10 |
| 6851282 | Apparatus and method for making optical fiber | Yuichi Ohga, Tatsuhiko Saitoh, Hiroshi Takamizawa | 2005-02-08 |
| 6810692 | Method of controlling an upper portion of an optical fiber draw furnace | Toshiki Taru, Kazuya Kuwahara, Ichiro Tsuchiya | 2004-11-02 |
| 6735983 | Optical fiber drawing method and drawing furnace | Toshiki Taru, Ichiro Tsuchiya, Katsuyuki Tsuneishi, Kazuya Kuwahara | 2004-05-18 |
| 6681072 | Optical fiber, method of making optical fiber preform, and method of making optical fiber | Kiichiro Kawasaki, Takatoshi Kato | 2004-01-20 |
| 6668592 | Optical fiber drawing furnace having adjustable partitions | Toshiki Taru, Kazuya Kuwahara, Ichiro Tsuchiya | 2003-12-30 |
| 6567597 | Optical fiber, method of making the same, and optical transmission system including the same | Eisuke Sasaoka, Masashi Onishi, Kaoru Okuno, Kazuya Kuwahara | 2003-05-20 |
| 6519404 | Method and apparatus for fabricating coated optical fiber, and coated optical fiber | Motohide Yoshida, Katsuyuki Tsuneishi, Masao Koida | 2003-02-11 |
| 6502428 | Manufacturing method of an optical fiber | Masashi Onishi, Kazuya Kuwahara | 2003-01-07 |
| 6473548 | Multiple fiber optical cable and method of manufacturing multiple fiber optical cable | Kaoru Okuno, Eisuke Sasaoka, Masayuki Nishimura | 2002-10-29 |
| 6399158 | Method and apparatus for curing ultraviolet-curing resin | Kazuya Kuwahara, Ichiro Tsuchiya | 2002-06-04 |
| 6400878 | Optical fiber and method of making the same | Yuichi Ohga, Tatsuhiko Saitoh, Shinji Ishikawa, Ichiro Tsuchiya, Takenori Uchiyama | 2002-06-04 |
| 5637130 | Method and furnace for drawing optical fibers | Kohei Kobayashi, Hiroaki Ohta, Ichiro Tsuchiya | 1997-06-10 |
| 5472128 | Method and apparatus for sucking an optical fiber | Toshifumi Hosoya | 1995-12-05 |
| 5441215 | Slitted winding wheel for optical fiber | Toshifumi Hosoya, Ichiro Yoshimura, Yasuo Matsuda | 1995-08-15 |
| 5352261 | Apparatus for the production of hermetically coated optical fiber | Haruhiko Aikawa, Toshio Danzuka | 1994-10-04 |
| 5348564 | Method for manufacturing a hermetically coated optical fiber | Haruhiko Aikawa, Yoichi Ishiguro, Ichiro Yoshimura, Yutaka Katsuyama, Nobuyuki Yoshizawa | 1994-09-20 |
| 5322228 | Method for screening optical fiber and apparatus for carrying out method | Toshifumi Hosoya, Yutaka Wada, Ichiro Yoshimura, Yasuo Matsuda, Yuji Kobayashi | 1994-06-21 |
| 5281247 | Method for producing hermetic coated optical fiber | Haruhiko Aikawa, Yoichi Ishiguro, Ichiro Yoshimura, Yutaka Katsuyama, Nobuyuki Yoshizawa | 1994-01-25 |
| 5194080 | Apparatus for producing hermetic coated optical fiber | Haruhiko Aikawa, Yoichi Ishiguro, Ichiro Yoshimura, Yutaka Katsuyama, Nobuyuki Yoshizawa | 1993-03-16 |
| 5046235 | Method of and apparatus for assembling a transformer core | Yukinori Taneda, Sei Hoshizawa, Tatsukichi Matsuura | 1991-09-10 |