Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10378366 | Steam turbine rotor blade and method for manufacturing steam turbine rotor blade | Masahiko Arai, Hiroyuki Doi, Hideo Yoda | 2019-08-13 |
| 10260357 | Steam turbine rotor, steam turbine including same, and thermal power plant using same | Shinya Imano, Hiroyuki Doi, Akira Yoshinari | 2019-04-16 |
| 9873930 | Precipitation hardening martensitic stainless steel and steam turbine component made thereof | Hideo Yoda, Masahiko Arai, Hiroyuki Doi | 2018-01-23 |
| 9388702 | Precipitation hardening martensitic stainless steel, and steam turbine long blade, steam turbine, and power plant using the same | Hideo Yoda, Masahiko Arai, Hiroyuki Doi | 2016-07-12 |
| 9200524 | Steam turbine rotor | Masahiko Arai, Hiroyuki Doi, Kenichi Murata | 2015-12-01 |
| 9062362 | Precipitate hardening stainless steel and long blade using same for steam turbine | Hideo Yoda, Masahiko Arai, Hiroyuki Doi | 2015-06-23 |
| 8747733 | Precipitation hardenable martensitic stainless steel and steam turbine blade using the same | Hideo Yoda, Masahiko Arai, Hiroyuki Doi | 2014-06-10 |
| 4813908 | Motion toy having action-changing structure | Jiro Yamaguchi | 1989-03-21 |