Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9624559 | Bearing steel excellent in rolling-contact fatigue properties and method for producing same | Masaki Kaizuka, Manabu Fujita | 2017-04-18 |
| 9587288 | Gear having excellent seizing resistance | Sayaka Nagamatsu | 2017-03-07 |
| 9359661 | Bearing steel material with excellent rolling fatigue property and bearing part | Masaki Shimamoto, Masaki Kaizuka, Akihiro OWAKI, Sei Kimura, Tetsushi Deura +1 more | 2016-06-07 |
| 9297051 | Case hardening steel, method for producing same, and mechanical structural part using case hardening steel | Nariaki Okamoto | 2016-03-29 |
| 9090959 | Bearing steel excellent in cold workability and manufacturing method thereof | Masaki Kaizuka | 2015-07-28 |
| 6596227 | Machine structure steel superior in chip disposability and mechanical properties and its method of making | Hiroshi Yaguchi, Takehiro Tsuchida, Koichi Sakamoto, Masato Kaiso, Masami Somekawa +2 more | 2003-07-22 |
| 6579385 | Free machining steel for use in machine structure of excellent mechanical characteristics | Hiroshi Yaguchi, Takehiro Tsuchida, Takahiro Kudou, Masato Kaiso, Masami Somekawa | 2003-06-17 |
| 6316127 | Galvanized steel sheet superior in ductility and process for production thereof | Shushi Ikeda, Koichi Makii, Shunichi Hashimoto, Takahiro Kashima | 2001-11-13 |
| 6306527 | Hot-dip galvanized steel sheet and process for production thereof | Shushi Ikeda, Koichi Makii, Shunichi Hashimoto, Takahiro Kashima, Hiroshi Akamizu +1 more | 2001-10-23 |