Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10879675 | Spark plug | Haruki Yoshida, Kuniharu Tanaka, Yutaka Yokoyama, Shun Kondo, Hirokazu Kurono | 2020-12-29 |
| 10193311 | Spark plug | Yutaka Yokoyama, Kuniharu Tanaka, Nobuyoshi Araki, Hirokazu Kurono, Yusuke Nomura +1 more | 2019-01-29 |
| 9653888 | Spark plug | Yutaka Yokoyama, Kuniharu Tanaka, Katsuya Takaoka, Shun Kondo, Nobuyoshi Araki +6 more | 2017-05-16 |
| 9425585 | Insulator and spark plug | Kengo Fujimura, Hirokazu Kurono, Toshitaka Honda | 2016-08-23 |
| 8970098 | Ignition plug | Hirokazu Kurono, Toshitaka Honda | 2015-03-03 |
| 8928214 | Ignition plug | Hirokazu Kurono, Toshitaka Honda | 2015-01-06 |