Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9840948 | Method for supplying inert gas into poppet valve intermediate and apparatus for supplying inert gas into poppet valve intermediate | Shigeru Uchida | 2017-12-12 |
| 9334977 | Engine valve | Masanami Iio | 2016-05-10 |
| 8689761 | Exhaust poppet valve and solution heat treatment method of the same | Yasuhito Tanaka | 2014-04-08 |