Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11176918 | Piezoelectric element and musical instrument | Hiroshi Koike, Seiichiro Iida, Kunio Hiyama, Suguru Sasaki, Hidekazu Kodama | 2021-11-16 |
| 11148393 | Electrostatic adsorbable laminated sheet and display material | Hiroshi Koike | 2021-10-19 |