Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9783872 | Electrode material and spark plug | Osamu Yoshimoto, Tomonori Kanemaru, Tomo Tanaka, Toshihiro Uehara | 2017-10-10 |
| 9768588 | Spark plug and manufacturing method therefor | Takaaki Kikai, Tomoo Tanaka, Tsutomu Shibata, Kaori Suzuki | 2017-09-19 |