Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11478341 | Interdental cleaning tool | Tasuku Kikkawa, Narutomo Shiraki, Satoru Komiyama, Shinji Yumei, Masanori Kawakami | 2022-10-25 |
| 11291867 | Interdental cleaning tool | Tasuku Kikkawa, Narutomo Shiraki | 2022-04-05 |
| 4718470 | Pneumatic radial tires | Masaaki Morimoto, Eiichi Koyama, Koichi Kojima | 1988-01-12 |
| 4399853 | Metal cord-rubber composite materials | Masaaki Morimoto, Koichi Kojima, Eiichi Koyama | 1983-08-23 |