Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11285570 | Method of manufacturing engine valve intermediate product with boss portion | Atsuyuki Ichimiya | 2022-03-29 |
| 10473002 | Poppet valve and method for manufacturing same | Maiku Mikami | 2019-11-12 |
| 9539685 | Workpiece conveyer apparatus of machine tool | — | 2017-01-10 |
| 9441287 | Ni-Cr-Co-based alloy having high-temperature corrosion resistance, and poppet valve surface-modified with the same | Katsunori Otobe, Shinichi Nishimura, Yoshihiro Takahashi | 2016-09-13 |
| 9371915 | Poppet valve with a formed seat, and method of making | Maiku Mikami | 2016-06-21 |
| 9206319 | Wear-resistant cobalt-based alloy and engine valve coated with same | Katsunori Otobe, Shinichi Nishimura | 2015-12-08 |
| 9206715 | High-toughness cobalt-based alloy and engine valve coated with same | Katsunori Otobe, Shinichi Nishimura | 2015-12-08 |
| 9163734 | Poppet valve with a formed seat, and method of making | Maiku Mikami | 2015-10-20 |
| 9015940 | Method of manufacturing a valve for an internal combustion engine | Maiku Mikami | 2015-04-28 |
| 8978248 | Method of manufacturing a valve for an internal combustion engine | Maiku Mikami | 2015-03-17 |