Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10663634 | ND filter with plastic base material, and ND filter with plastic base material for eyeglasses | Hirotoshi Takahashi | 2020-05-26 |
| 10612642 | Method for manufacturing rack and hollow rack bar | Takashi Yamawaki, Kenichi Aoki | 2020-04-07 |
| 10562115 | Electric power tool and method for manufacturing the same | Akira Niwa | 2020-02-18 |
| 10562138 | Method for manufacturing rack bar | Makoto Nomura, Takashi Yamawaki, Nobumoto Ishiki | 2020-02-18 |