Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11148401 | Hot-melt adhesive resin film and production method thereof | Yuiko Maruyama, Hirokazu Iizuka | 2021-10-19 |
| 11007756 | Hot-melt adhesive resin film and production method thereof | Yuiko Maruyama, Hirokazu Iizuka | 2021-05-18 |
| 10985359 | Electrode lead wire member and battery | Hirokazu Iizuka, Shunsuke Takeyama | 2021-04-20 |
| D907108 | Electronic keyboard | — | 2021-01-05 |