Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11372145 | Optical element and optical circuit | Takayuki Kawashima, Shojiro Kawakami, Takafumi Chiba | 2022-06-28 |
| 11125925 | Optical element | Shojiro Kawakami, Takayuki Kawashima, Takafumi Chiba, Hiroyuki Tsuda, Hiroshi Takahashi | 2021-09-21 |