Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11773473 | Heat-resistant IR alloy | Yoshinori Doi, Ryohei Akiyoshi, Ken Hanashi | 2023-10-03 |
| 11505848 | Heat-resistant Ir alloy | Kenta Terai, Hayato Yasuhara, Ryohei Akiyoshi, Ken Hanashi, Ikuya Ando | 2022-11-22 |
| 11486024 | Heat-resistant Ir alloy wire | Kenta Terai, Hayato Yasuhara, Ryohei Akiyoshi, Ken Hanashi, Ikuya Ando | 2022-11-01 |
| 11131008 | Heat-resistant Ir alloy | Yoshinori Doi, Ryohei Akiyoshi, Ken Hanashi | 2021-09-28 |
| 9184570 | Spark plug for internal combustion engine of motor vehicles | Yuki Murayama, Nobuo Abe, Yoshinori Doi, Toshiyuki Tomine | 2015-11-10 |