Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8052495 | Method for producing spark plug by projection welding and spark plug thereof | Tomoaki Kato, Kazuyoshi Torii | 2011-11-08 |
| 8044562 | Spark plug | Naomichi Miyashita, Kazuyoshi Torii | 2011-10-25 |
| 8033880 | Method for manufacturing spark plug | Akira Suzuki, Mai Nakamura | 2011-10-11 |
| 7944134 | Spark plug with center electrode having high heat dissipation property | Jiro Kyuno, Akira Suzuki, Mai Moribe, Yuichi Nakano | 2011-05-17 |