Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12326642 | Wavelength filter and laser apparatus | Yukie Iga, Hirotomo Izumi, Suguru Akiyama | 2025-06-10 |
| 12300973 | Integrated photonic device and photonic integrated circuit using the same | Shuntaro Makino | 2025-05-13 |
| 12047121 | Optical device, optical transmission apparatus, optical reception apparatus, and optical communication apparatus | Koji Otsubo, Masaki Sugiyama, Shuntaro Makino | 2024-07-23 |
| 11984696 | Optical amplifier and inspection method of optical amplifier | Suguru Akiyama | 2024-05-14 |
| 10560213 | Optical device | Shuntaro Makino | 2020-02-11 |
| 10530119 | Wavelength locker, wavelength tunable laser apparatus, and method for controlling wavelength tunable laser apparatus | Suguru Akiyama | 2020-01-07 |
| 10312663 | Tunable laser device | Suguru Akiyama, Tsuyoshi Yamamoto | 2019-06-04 |
| 10027088 | Integrated semiconductor optical element and manufacturing method for same | Tsuyoshi Yamamoto | 2018-07-17 |
| 9966724 | Laser and method of controlling laser | Tsuyoshi Yamamoto | 2018-05-08 |
| 9948059 | Semiconductor laser light source and fabrication method | Tokuharu Kimura, Tsuyoshi Yamamoto, Ayahito Uetake | 2018-04-17 |
| 9793684 | Laser apparatus | Tsuyoshi Yamamoto | 2017-10-17 |
| 9762034 | Tunable laser source, optical transmitter, and optical transmitter and receiver module | Tsuyoshi Yamamoto | 2017-09-12 |
| 9722397 | Tunable laser and tunable laser module | Tsuyoshi Yamamoto, Manabu Matsuda | 2017-08-01 |
| 9711938 | Integrated semiconductor optical element and manufacturing method for same | Tsuyoshi Yamamoto | 2017-07-18 |
| 9705282 | Multi-wavelength laser light source and wavelength multiplexing communication system | Tsuyoshi Yamamoto | 2017-07-11 |
| 9698570 | Optical semiconductor element and method of manufacturing the same | Tsuyoshi Yamamoto, Tokuharu Kimura | 2017-07-04 |
| 9606380 | Method for manufacturing optical module | — | 2017-03-28 |
| 9312663 | Laser device, light modulation device, and optical semiconductor device | — | 2016-04-12 |
| 9147781 | Light receiving element with offset absorbing layer | — | 2015-09-29 |
| 8938138 | Optical semiconductor device and method of manufacturing optical semiconductor device | Ayahito Uetake | 2015-01-20 |
| 8860164 | Light receiving device | — | 2014-10-14 |
| 8724938 | Optical receiver | — | 2014-05-13 |
| 8710614 | Light receiving element with offset absorbing layer | — | 2014-04-29 |
| 8666200 | Optical modulation device, driving method of optical modulation device, and manufacturing method of optical modulation device | Akinori Hayakawa | 2014-03-04 |
| 8546899 | Light receiving element, light receiving device, and light receiving module | — | 2013-10-01 |