Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12327983 | Wavelength-variable laser | Junji Yoshida, Satoshi Irino, Yuichiro Irie, Taketsugu SAWAMURA | 2025-06-10 |
| 12009636 | Wavelength-variable laser | Junji Yoshida, Satoshi Irino, Yuichiro Irie, Taketsugu SAWAMURA | 2024-06-11 |
| 11605935 | Wavelength-variable laser | Junji Yoshida, Satoshi Irino, Yuichiro Irie, Taketsugu SAWAMURA | 2023-03-14 |
| 11581706 | Wavelength-variable laser | Junji Yoshida, Satoshi Irino, Yuichiro Irie, Taketsugu SAWAMURA | 2023-02-14 |
| 10938183 | Wavelength-variable laser | Junji Yoshida, Satoshi Irino, Yuichiro Irie, Taketsugu SAWAMURA, Masaki Funabashi +1 more | 2021-03-02 |
| 10511150 | Wavelength-variable laser | Junji Yoshida, Satoshi Irino, Yuichiro Irie, Taketsugu SAWAMURA, Masaki Funabashi +1 more | 2019-12-17 |
| 10020638 | Optical semiconductor device, semiconductor laser module, and optical fiber amplifier | Junji Yoshida, Satoshi Irino, Yuichiro Irie, Taketsugu SAWAMURA | 2018-07-10 |
| 9601905 | Optical semiconductor device, semiconductor laser module, and optical fiber amplifier | Junji Yoshida, Satoshi Irino, Yuichiro Irie, Taketsugu SAWAMURA | 2017-03-21 |
| 9083150 | Optical semiconductor device, semiconductor laser module, and optical fiber amplifier | Junji Yoshida, Satoshi Irino, Yuichiro Irie, Taketsugu SAWAMURA | 2015-07-14 |
| 8678769 | Compressor impeller and method of manufacturing the same | Yasuhiro Kubota, Mikio Sasaki | 2014-03-25 |
| 8385379 | Optical semiconductor device and pumping light source for optical fiber amplifier | Junji Yoshida, Naoki Tsukiji, Hidehiro Taniguchi, Satoshi Irino, Harunobu Ikeda +2 more | 2013-02-26 |
| 7669637 | Impeller for supercharger and method of manufacturing the same | Yasuhiro Kubota | 2010-03-02 |
| 6248687 | Process for presulfurizing a desulfurization catalyst used in a hydrodesulfurization unit of petroleum refinery and presulfurization promoter | Kazuaki Abe, Yoshihiro Arita, Einosuke Jodo, Kazuya Hata, Tetsushi Kawamura | 2001-06-19 |
| 6103102 | Method for improving the yield of lighter components in heat-refining process of petroleum heavy oil, and additive used in the method | Toshifumi Hatanaka, Kazuya Hata, Tetsushi Kawamura, Yoshihiro Arita | 2000-08-15 |
| 6018509 | Connector apparatus for electrically connecting an optical component drive device to an external electrical circuit | Tomohiro Makigaki | 2000-01-25 |
| 5965011 | Method for reducing deposition of cokes in heat-refining process of petroleum high-molecular hydrocarbons, and additive used in the method | Toshifumi Hatanaka, Kazuya Hata, Tetsushi Kawamura, Yoshiro Arita | 1999-10-12 |
| 5948936 | Method for production of sulfide group-containing thiol compound | Kazuaki Abe, Takashi Tomita | 1999-09-07 |
| 5919985 | Method for production of sulfide group-containing thiol compound | Kazuaki Abe, Takashi Tomita | 1999-07-06 |
| 5811591 | Process of producing hydroxyalkanal | Hiroshi Yamamoto, Hisakazu Shindou, Tadahiro Yoneda, Masatoshi Yoshida | 1998-09-22 |
| 5790510 | Optical component drive device including nonparallel elastic plates | Tomohiro Makigaki | 1998-08-04 |
| 5403339 | Blood vessel dilator | Masakiyo Nobuyoshi, Kyuta Sagae | 1995-04-04 |