Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11289621 | Method for producing semiconductor light emitting element | Minoru Yamamoto, Naoto Inoue, Hiroaki TAMEMOTO, Hideyuki Ohtake | 2022-03-29 |
| 8149677 | Optical pickup unit and optical disk apparatus having a phase-differing periodic structure | Ryoichi Kawasaki | 2012-04-03 |