Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9755404 | Spark plug | Jumpei Isasa, Haruki Yoshida, Yutaka Yokoyama, Kuniharu Tanaka, Toshiki Kon | 2017-09-05 |
| 9653888 | Spark plug | Yutaka Yokoyama, Kuniharu Tanaka, Katsuya Takaoka, Shun Kondo, Toshiki Kon +6 more | 2017-05-16 |