Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12327983 | Wavelength-variable laser | Junji Yoshida, Hirokazu Itoh, Satoshi Irino, Taketsugu SAWAMURA | 2025-06-10 |
| 12009636 | Wavelength-variable laser | Junji Yoshida, Hirokazu Itoh, Satoshi Irino, Taketsugu SAWAMURA | 2024-06-11 |
| 11605935 | Wavelength-variable laser | Junji Yoshida, Hirokazu Itoh, Satoshi Irino, Taketsugu SAWAMURA | 2023-03-14 |
| 11581706 | Wavelength-variable laser | Junji Yoshida, Hirokazu Itoh, Satoshi Irino, Taketsugu SAWAMURA | 2023-02-14 |
| 10938183 | Wavelength-variable laser | Junji Yoshida, Hirokazu Itoh, Satoshi Irino, Taketsugu SAWAMURA, Masaki Funabashi +1 more | 2021-03-02 |
| 10511150 | Wavelength-variable laser | Junji Yoshida, Hirokazu Itoh, Satoshi Irino, Taketsugu SAWAMURA, Masaki Funabashi +1 more | 2019-12-17 |
| 10020638 | Optical semiconductor device, semiconductor laser module, and optical fiber amplifier | Junji Yoshida, Hirokazu Itoh, Satoshi Irino, Taketsugu SAWAMURA | 2018-07-10 |
| 9601905 | Optical semiconductor device, semiconductor laser module, and optical fiber amplifier | Junji Yoshida, Hirokazu Itoh, Satoshi Irino, Taketsugu SAWAMURA | 2017-03-21 |
| 9083150 | Optical semiconductor device, semiconductor laser module, and optical fiber amplifier | Junji Yoshida, Hirokazu Itoh, Satoshi Irino, Taketsugu SAWAMURA | 2015-07-14 |
| 7030422 | Semiconductor laser diode module | Jun Miyokawa, Etsuji Katayama, Kaoru Sekiguchi, Kiyokazu Tateno | 2006-04-18 |
| 7014371 | Laser diode module and its manufacture method | Jun Miyokawa, Takeo Shimizu | 2006-03-21 |
| 6734517 | Semiconductor laser diode module | Jun Miyokawa, Etsuji Katayama, Kaoru Sekiguchi, Kiyokazu Tateno | 2004-05-11 |
| 6720582 | Semiconductor laser diode module | Jun Miyokawa, Etsuji Katayama, Kaoru Sekiguchi, Kiyokazu Tateno | 2004-04-13 |
| 6683902 | Semiconductor laser module | Yutaka Ohki, Takeharu Yamaguchi | 2004-01-27 |
| 6606435 | Laser diode module and its manufacture method | Jun Miyokawa, Takeo Shimizu | 2003-08-12 |
| 6532107 | Optical amplifier, light source module and optical system | Takeharu Yamaguchi, Hideo Aoyagi, Toshiaki Tsuda, Etsuji Katayama, Takeo Shimizu | 2003-03-11 |
| 6529535 | Laser diode module | Etsuji Katayama, Jun Miyokawa, Akira Mugino | 2003-03-04 |
| 6524016 | Semiconductor laser module | Yutaka Ohki, Takeharu Yamaguchi | 2003-02-25 |
| 6496524 | Laser diode module | Jun Miyokawa, Hiroshi Kasahara, Takeo Shimizu | 2002-12-17 |
| 6435736 | Optical device and method for manufacturing the same | Jun Miyokawa, Takeo Shimizu | 2002-08-20 |
| 6384964 | Optical gain equalizer, and method for producing the optical gain equalizer, and applications of the optical gain equalizer | Kazuyo Mizuno, Shoichi Ozawa, Osamu Aso, Shu Namiki | 2002-05-07 |
| 6377390 | Optical gain equalizer, and optical amplifier and wavelength-division multiplex transmitter both comprising the optical gain equalizer | Kazuyo Mizuno, Shyoichi Ozawa, Osamu Aso, Shu Namiki, Ikuo Ohta | 2002-04-23 |
| 6332053 | Optical fiber | Takeo Shimizu, Shoichi Ozawa | 2001-12-18 |
| 6317550 | Lensed optical fiber | Toshio Kimura, Takeo Shimizu | 2001-11-13 |
| 6301406 | Optical fiber with lens | Toshio Kimura, Takeo Shimizu | 2001-10-09 |