Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11186901 | Chisel and steel for chisel | Eiji Amada, Akihiro Ochiai, Yuko Nagaki | 2021-11-30 |
| 10060013 | Steel having superior rolling fatigue life | Takeshi Fujimatsu, Ichiro Takasu | 2018-08-28 |
| 9469883 | Carburized steel part having excellent low cycle bending fatigue strength | Shuji Kozawa, Manabu Kubota, Osamu Kada, Motohiro Nishikawa, Takashi Tanaka | 2016-10-18 |
| 7445680 | Lead-free steel for machine structural use with excellent machinability and low strength anisotropy | Naoki Iwama, Susumu Owaki, Masao Uchiyama, Isao Fujii, Syoji Nishimon +4 more | 2008-11-04 |
| 7195736 | Lead-free steel for machine structural use with excellent machinability and low strength anisotropy | Naoki Iwama, Susumu Owaki, Masao Uchiyama, Isao Fujii, Syoji Nishimon +4 more | 2007-03-27 |