Issued Patents All Time
Showing 1–25 of 77 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10147532 | Wiring structure for electronic apparatus and image forming apparatus | — | 2018-12-04 |
| 8698115 | Light source device and method for generating extreme ultraviolet light | Waheed Hugrass | 2014-04-15 |
| 8102596 | Optical fiber for amplification | Tetsuya Haruna, Junji Iihara, Shinji Ishikawa | 2012-01-24 |
| 8024945 | Glass tube processing apparatus | Tetsuya Nakanishi, Tomoyuki Yokokawa, Masaaki Hirano, Nobuyuki Taira | 2011-09-27 |
| 8015845 | Glass tube processing method | Tetsuya Nakanishi, Tomoyuki Yokokawa, Masaaki Hirano, Nobuyuki Taira | 2011-09-13 |
| 7894697 | Optical fiber, optical transmission line, optical module, and optical transmission system | Takashi Sasaki, Kazumasa Makihara, Tetsuya Haruna, Masaaki Hirano | 2011-02-22 |
| 7773847 | Multimode optical fiber | Kazuaki Negishi, Yasushi Koyano, Itaru Sakabe, Masahiko Matsui, Tetsuya Nakanishi | 2010-08-10 |
| 7637125 | Glass tube processing method, apparatus and glass tube | Tetsuya Nakanishi, Tomoyuki Yokokawa, Masaaki Hirano, Nobuyuki Taira | 2009-12-29 |
| 7486862 | Optical fiber and manufacturing method thereof | Yuichi Ohga, Osamu Kasuu, Shuichiro Kato, Toru Adachi, Takashi Sasaki +1 more | 2009-02-03 |
| 7484387 | Method of making a microstructured optical fiber | Takemi Hasegawa, Eisuke Sasaoka, Masayuki Nishimura | 2009-02-03 |
| 7286740 | Optical fiber, optical transmission line, optical module and optical transmission system | Takashi Sasaki, Kazumasa Makihara, Tetsuya Haruna, Masaaki Hirano | 2007-10-23 |
| 7153034 | Method of constructing an optical transmission line and an optical transmission line | Eisuke Sasaoka, Takemi Hasegawa, Masayuki Nishimura | 2006-12-26 |
| 7062941 | Manufacturing method of optical fiber preform | Eiji Yanada, Masaaki Hirano, Hideyuki Ijiri | 2006-06-20 |
| 7045737 | Glass-processing method and glass-processing apparatus for the method | Masaaki Hirano, Tetsuya Nakanishi | 2006-05-16 |
| 7043131 | Optical device and a making method thereof | Yasushi Koyano, Eisuke Sasaoka, Shigeru Tanaka, Kohei Kobayashi, Kenji Tamano +1 more | 2006-05-09 |
| 7016581 | Dispersion compensation unit and optical communication system | Tomoyuki Yokokawa, Takashi Fujii | 2006-03-21 |
| 6997016 | Method and apparatus for manufacturing glass tube | Tomomi Moriya, Kazuyuki SOHMA, Masaaki Hirano, Eiji Yanada, Tadashi Enomoto | 2006-02-14 |
| 6987917 | Optical fiber preform producing method, optical fiber preform, and optical fiber | Masaaki Hirano, Hideyuki Ijiri | 2006-01-17 |
| 6907757 | Drawing method of optical fiber and drawing furnace | Kazuya Kuwahara, Katsuya Nagayama, Ichiro Tsuchiya | 2005-06-21 |
| 6898361 | Dispersion-compensating optical fiber and optical transmission line | Eiji Yanada, Masaaki Hirano | 2005-05-24 |
| 6888669 | Raman amplifier | Toshiaki Okuno | 2005-05-03 |
| 6868213 | Optical fiber and production method therefor | Eisuke Sasaoka, Takemi Hasegawa, Shinji Ishikawa | 2005-03-15 |
| 6856738 | Optical fiber and optical transmission system | Takatoshi Kato, Shigeru Tanaka, Yuji Kubo | 2005-02-15 |
| 6836605 | Optical fiber preform, production method thereof, and optical fiber produced from the preform | Masaaki Hirano, Eiji Yanada | 2004-12-28 |
| 6813065 | Raman amplifier and optical communication system | Tetsufumi Tsuzaki, Motoki Kakui, Shinji Ishikawa | 2004-11-02 |