Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11809005 | Laser device | Hiroshi Tobita | 2023-11-07 |
| 9356417 | Fiber laser | — | 2016-05-31 |
| 9203205 | Fiber laser device | — | 2015-12-01 |
| 9184556 | Optical multiplexer and fiber laser | — | 2015-11-10 |
| 8565273 | Optical fiber laser | — | 2013-10-22 |
| 8548013 | Fiber laser | Tetsuya Sakai, Michihiro Nakai | 2013-10-01 |
| 8542710 | Optical fiber amplifier and fiber laser apparatus using the same | — | 2013-09-24 |
| 8422890 | Fiber output stabilizer | Masakuni Mimuro, Kuniharu Himeno | 2013-04-16 |
| 8340487 | Rare earth-doped core optical fiber and manufacturing method thereof | Masashi Ikeda, Naritoshi Yamada, Kuniharu Himeno, Michihiro Nakai | 2012-12-25 |
| 8306073 | Fiber laser device | — | 2012-11-06 |
| 8295314 | Fiber laser having superior resistance to reflection light | — | 2012-10-23 |
| 8279899 | Fiber laser | — | 2012-10-02 |
| 8270442 | Optical fiber laser | — | 2012-09-18 |
| 7840107 | Optical pumping device, optical amplifier, fiber laser, and multicore fiber for optical pumping device | Shoji Tanigawa, Hironori Tanaka, Manabu Saito, Tetsuya Sakai | 2010-11-23 |
| 7409122 | End face structure of optical fiber, optical fiber laser, and laser processing apparatus | Tetsuya Sakai | 2008-08-05 |
| 7065279 | Method for exciting light for optical amplification medium fiber, structure for emitting excited light into optical amplification medium fiber optical fiber amplifier, and optical fiber laser | Kensuke Shima, Tetsuya Sakai | 2006-06-20 |
| 7027692 | Optical fiber coupling structure and method for coupling optical fibers | Tetsuya Sakai | 2006-04-11 |
| 6597494 | Polarization maintaining optical fiber amplifier and optical amplifier | Takeshi Segi, Tetsuya Sakai | 2003-07-22 |
| 6563628 | Gain tilt free optical fiber amplifier in a wide dynamic gain range | Tetsuya Sakai, Takafumi Kashima | 2003-05-13 |