Issued Patents 2017
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9843167 | Spark plug | Yoshitomo Iwasaki | 2017-12-12 |
| 9653888 | Spark plug | Yutaka Yokoyama, Kuniharu Tanaka, Katsuya Takaoka, Shun Kondo, Nobuyoshi Araki +6 more | 2017-05-16 |
| 9595814 | Spark plug | Takashi KASASHIMA, Katsuya Takaoka, Kazuhiro Kurosawa, Kuniharu Tanaka, Toshitaka Honda +2 more | 2017-03-14 |
| 9590395 | Spark plug | Katsuya Takaoka, Kazuhiro Kurosawa, Kuniharu Tanaka, Toshitaka Honda, Hirokazu Kurono +1 more | 2017-03-07 |