Issued Patents 2019
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10505347 | Spark plug for internal combustion engine | Ryohei Akiyoshi | 2019-12-10 |
| 10439367 | Ignition plug for an internal combustion engine and method for manufacturing the same | Masayuki Tamura, Nobuo Abe | 2019-10-08 |
| 10333281 | Spark plug | Kazumi Nakano | 2019-06-25 |
| 10305258 | Ignition coil for internal combustion engine | Kenji Hattori, Kaori Doi, Tetsuya Miwa | 2019-05-28 |