Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9484718 | Spark plug | Haruki Yoshida, Masaaki Kumagai, Jumpei Kita, Yoshitomo Iwasaki, Toshitaka Honda | 2016-11-01 |
| 9419415 | Spark plug | Satoshi Yano | 2016-08-16 |
| 9312664 | Spark plug | Haruki Yoshida, Satoshi Yano | 2016-04-12 |
| 9124073 | Spark plug | Haruki Yoshida, Atsushi Tsukada | 2015-09-01 |
| 9093824 | Spark plug | Hoju Fukushima, Tsutomu Shibata, Toshitaka Honda | 2015-07-28 |
| 9035541 | Spark plug | Haruki Yoshida | 2015-05-19 |
| 8987980 | Spark plug | Jumpei Kita, Haruki Yoshida | 2015-03-24 |
| 8963407 | Spark plug | Satoru Ochiai, Haruki Yoshida, Atsushi Tsukada | 2015-02-24 |
| 8128446 | Method for manufacturing a spark plug insulator including steps for forming a through hole therein | Toshitaka Honda, Shinichi Sakurai | 2012-03-06 |