Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10473002 | Poppet valve and method for manufacturing same | Kazunori Kurahashi | 2019-11-12 |
| 9371915 | Poppet valve with a formed seat, and method of making | Kazunori Kurahashi | 2016-06-21 |
| 9163734 | Poppet valve with a formed seat, and method of making | Kazunori Kurahashi | 2015-10-20 |
| 9015940 | Method of manufacturing a valve for an internal combustion engine | Kazunori Kurahashi | 2015-04-28 |
| 8978248 | Method of manufacturing a valve for an internal combustion engine | Kazunori Kurahashi | 2015-03-17 |