Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9598752 | Bearing steel | Masaki Kaizuka | 2017-03-21 |
| 9394593 | Bearing steel material with excellent rolling contact fatigue properties and a bearing part | Masaki Kaizuka, Masaki Shimamoto, Tomoko Sugimura | 2016-07-19 |
| 9200357 | Steel for machine structural use, manufacturing method for same, case hardened steel component, and manufacturing method for same | Takehiro Tsuchida, Tomokazu Masuda | 2015-12-01 |
| 9115415 | Case hardened steel and method for producing same | Nariaki Okamoto | 2015-08-25 |
| 9062360 | Steel for machine structural use | Takehiro Tsuchida, Tomokazu Masuda, Masaki Shimamoto | 2015-06-23 |
| 8192565 | Steel for machine and structural use having excellent machinability and process for producing the same | Tomokazu Masuda, Takehiro Tsuchida, Masaki Shimamoto, Motohiro Horiguchi, Shinsuke Masuda +4 more | 2012-06-05 |
| 6635129 | Wire rod steel | Masato Kaiso, Yoshinori Onoe, Shigehiro Mori | 2003-10-21 |