Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12261412 | Electro-absorption modulator | Hideaki ASAKURA, Atsushi Nakamura, Hayato TAKITA | 2025-03-25 |
| 12126138 | Optical semiconductor device and semiconductor light-emitting device | Hayato TAKITA, Atsushi Nakamura, Hideaki ASAKURA | 2024-10-22 |
| 12040596 | Optical semiconductor device, optical subassembly, and optical module | Atsushi Nakamura, Akira Nakanishi, Hayato TAKITA, Yoshihiro Nakai, Hideaki ASAKURA | 2024-07-16 |
| 11462886 | Buried-type semiconductor optical device | Shigenori Hayakawa, Hironori Sakamoto, Yoshihiro Nakai | 2022-10-04 |
| 11081858 | Optical transmitter module, optical module, optical transmission equipment and method of manufacturing thereof | Yoshihiro Nakai, Takayuki Nakajima, Masahiro EBISU | 2021-08-03 |
| 10771161 | Optical transmission module | Atsushi Nakamura, Yoriyoshi Yamaguchi, Nozomu Yasuhara, Yoshihiro Nakai, Hideaki ASAKURA +3 more | 2020-09-08 |
| 10063029 | Optical transmission module | Atsushi Nakamura, Nozomu Yasuhara, Yoriyoshi Yamaguchi, Yoshihiro Nakai | 2018-08-28 |
| 9806821 | Optical signal generator | Atsushi Nakamura, Yoriyoshi Yamaguchi, Noriko Sasada, Nozomu Yasuhara, Takayoshi Fukui +1 more | 2017-10-31 |
| 9726914 | Optical signal generator | Atsushi Nakamura, Noriko Sasada, Takayoshi Fukui, Nozomu Yasuhara | 2017-08-08 |
| 8488918 | Semiconductor optical device, optical transmitter module, optical transceiver module, and optical transmission equipment | Seiji Sumi, Shigenori Hayakawa, Kaoru Okamoto, Yasushi Sakuma | 2013-07-16 |