Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11139724 | Electric motor with brushes arranged at predetermined positions | Tetsuaki Ichikawa, Masayuki Kuwano | 2021-10-05 |
| 11053833 | Exhaust gas purification catalyst | Isao Chinzei, Masahide Miura, Seiji Nakahigashi, Hiromasa Suzuki, Akira Morikawa +5 more | 2021-07-06 |