Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9869217 | Oil circulation device for internal combustion engine | Rie Nagai | 2018-01-16 |
| 6086453 | Wafer Pattern imaging apparatus | Kazuhiro Yagi, Fusao Hoshino | 2000-07-11 |
| 4545588 | Mechanical face seal for sealing slurry liquid | Yataro Nagai | 1985-10-08 |