Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11183819 | Spark plug | Yutaka Yokoyama, Kuniharu Tanaka, Haruki Yoshida, Hironori Uegaki, Toshiki Kon +1 more | 2021-11-23 |
| 10193311 | Spark plug | Yutaka Yokoyama, Kuniharu Tanaka, Hirokazu Kurono, Toshimasa Saji, Yusuke Nomura +1 more | 2019-01-29 |
| 9912125 | Spark plug | Haruki Yoshida, Jumpei Isasa, Toshitaka Honda, Yutaka Yokoyama, Kuniharu Tanaka +1 more | 2018-03-06 |
| 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 |