Issued Patents 2016
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9496687 | Method for manufacturing spark plug | Jiro Kyuno, Tomoaki Kato | 2016-11-15 |
| 9306375 | Spark plug | Tomoaki Kato, Naoyuki Mukoyama | 2016-04-05 |
| 9276383 | Spark plug, and production method therefor | Tomoaki Kato, Naoyuki Mukoyama, Tsutomu Kobayashi | 2016-03-01 |