Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9755404 | Spark plug | Jumpei Isasa, Yutaka Yokoyama, Kuniharu Tanaka, Nobuyoshi Araki, Toshiki Kon | 2017-09-05 |
| 9711951 | Spark plug | Yoshitomo Iwasaki, Toshitaka Honda | 2017-07-18 |
| 9653888 | Spark plug | Yutaka Yokoyama, Kuniharu Tanaka, Katsuya Takaoka, Shun Kondo, Nobuyoshi Araki +6 more | 2017-05-16 |
| 9614354 | Spark plug | Jumpei Kita, Yoshitomo Iwasaki, Toshitaka Honda | 2017-04-04 |
| 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 |
| 9570889 | Spark plug | Kengo Fujimura | 2017-02-14 |