Issued Patents All Time
Showing 25 most recent of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12119417 | Optical semiconductor element, optical semiconductor device, optical transmission system, and method of manufacturing optical semiconductor device | Satoshi Inada, Kenichi Ono, Takeshi MINAMIRU, Junichiro HAYAKAWA, Tsutomu Otsuka | 2024-10-15 |
| 11789147 | Semiconductor optical amplifier, optical output device, and distance measuring device | Junichiro HAYAKAWA, Daiki Tominaga, Fumio Koyama | 2023-10-17 |
| 11658464 | Semiconductor optical amplifier | Junichiro HAYAKAWA, Daiki Tominaga | 2023-05-23 |
| 11444436 | Semiconductor optical amplifier, semiconductor optical amplification device, optical output device, and distance measuring device | Junichiro HAYAKAWA, Daiki Tominaga, Fumio Koyama | 2022-09-13 |
| 11431153 | Semiconductor optical amplifier, light output apparatus, and distance measuring apparatus | Junichiro HAYAKAWA | 2022-08-30 |
| 11362135 | Light emitting element array and optical transmission device | Junichiro HAYAKAWA, Hideo Nakayama, Tsutomu Otsuka | 2022-06-14 |
| 10484087 | Optical transmission device | Junichiro HAYAKAWA, Hideo Nakayama, Tsutomu Otsuka | 2019-11-19 |
| 10438993 | Light emitting element array and optical transmission device | Junichiro HAYAKAWA, Hideo Nakayama, Tsutomu Otsuka | 2019-10-08 |
| 10431722 | Light emitting element, light emitting element array, and light transmission device | Junichiro HAYAKAWA, Takashi Kondo, Naoki Jogan, Jun Sakurai | 2019-10-01 |
| 10348059 | Light emitting element array and optical transmission device | Junichiro HAYAKAWA, Takashi Kondo, Naoki Jogan, Jun Sakurai | 2019-07-09 |
| 10193010 | Light emitting element | Naoki Jogan, Jun Sakurai, Takashi Kondo, Junichiro HAYAKAWA | 2019-01-29 |
| 10177532 | Light emitting element array and optical transmission device | Junichiro HAYAKAWA, Hideo Nakayama, Tsutomu Otsuka | 2019-01-08 |
| 10178736 | Light emitting apparatus and optical transmitting apparatus | Takashi Kondo, Junichiro HAYAKAWA, Naoki Jogan, Jun Sakurai | 2019-01-08 |
| 10095152 | Light emitting element array, optical device, and image forming apparatus | Takashi Kondo, Junichiro HAYAKAWA, Naoki Jogan, Jun Sakurai | 2018-10-09 |
| 10033157 | Surface-emitting semiconductor laser, method for producing the same, surface-emitting semiconductor laser device, optical transmission device, and information processing device | Kazutaka TAKEDA, Junichiro HAYAKAWA, Naoki Jogan, Takashi Kondo, Jun Sakurai | 2018-07-24 |
| 9787062 | Vertical cavity surface emitting laser array and method for manufacturing vertical cavity surface emitting laser array | Takashi Kondo, Naoki Jogan, Junichiro HAYAKAWA, Jun Sakurai | 2017-10-10 |
| 9762030 | Method of manufacturing surface-emitting semiconductor laser element | Junichiro HAYAKAWA, Takashi Kondo, Naoki Jogan, Jun Sakurai | 2017-09-12 |
| 9653883 | Surface emitting semiconductor laser device | Junichiro HAYAKAWA, Takashi Kondo, Kazutaka TAKEDA, Naoki Jogan, Jun Sakurai | 2017-05-16 |
| 9640944 | Method of manufacturing optical semiconductor element | Naoki Jogan, Jun Sakurai, Takashi Kondo, Kazutaka TAKEDA, Junichiro HAYAKAWA | 2017-05-02 |
| 9502863 | Surface-emitting semiconductor laser, surface-emitting semiconductor laser device, optical transmission device, and information processing device | Junichiro HAYAKAWA, Takashi Kondo, Kazutaka TAKEDA, Naoki Jogan, Jun Sakurai | 2016-11-22 |
| 9466945 | Surface-emitting semiconductor laser device and method for producing the same | Naoki Jogan, Jun Sakurai, Takashi Kondo, Kazutaka TAKEDA, Junichiro HAYAKAWA | 2016-10-11 |
| 9444223 | Surface-emitting semiconductor laser device and method for producing the same | Junichiro HAYAKAWA, Masaya Kumei, Takashi Kondo, Kazutaka TAKEDA, Jun Sakurai | 2016-09-13 |
| 9252562 | Surface emitting semiconductor laser, surface emitting semiconductor laser array, surface emitting semiconductor laser device, optical transmission device, information processing apparatus, and method of producing surface emitting semiconductor laser | Junichiro HAYAKAWA, Kazutaka TAKEDA | 2016-02-02 |
| 8749799 | Image carrier and image forming apparatus therewith | Tatsuo Okuno, Yoshifumi Ozaki, Akihiko Noda | 2014-06-10 |
| 8400482 | Image hold body and image forming apparatus | Tatsuo Okuno, Kenji Ogi, Akihiko Noda | 2013-03-19 |