Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9206705 | Sealing device and gas turbine having the same | Shinya Hashimoto, Kazuharu Hirokawa | 2015-12-08 |
| 8607604 | Bolt and manufacturing method of bolt | Kazuharu Hirokawa, Keisuke Ihara, Kei Osawa, Hiroshi Ishikawa, Taiji Torigoe +4 more | 2013-12-17 |