Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9184570 | Spark plug for internal combustion engine of motor vehicles | Yuki Murayama, Nobuo Abe, Yoshinori Doi, Shunsuke Yokota | 2015-11-10 |
| 9077158 | Spark plug for internal combustion engine | Yuki Murayama, Nobuo Abe, Yoshinori Doi | 2015-07-07 |