Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8337642 | Spring steel with improved hardenability and pitting resistance | Hidenori Hiromatsu, Motoyuki Sato, Ryo Hara | 2012-12-25 |
| 8197614 | Spring steel with improved hardenability and pitting resistance | Hidenori Hiromatsu, Motoyuki Sato, Ryo Hara | 2012-06-12 |
| 7850794 | Spring steel with improved hardenability and pitting resistance | Hidenori Hiromatsu, Motoyuki Sato, Ryo Hara | 2010-12-14 |
| 7014812 | Sulfur-containing free-cutting steel for machine structural use | Motoki Watanabe, Tsuneo Yoshimura, Katsuyuki Uchibori | 2006-03-21 |
| 6838049 | Room-temperature-formable magnesium alloy with excellent corrosion resistance | Kazunari Suemune, Susumu Takahashi | 2005-01-04 |
| 6737019 | Sulfur-containing free-cutting steel | Motoki Watanabe, Tsuneo Yoshimura | 2004-05-18 |
| 6322747 | High-strength spring steel | Hidenori Hiromatsu, Motoyuki Satoh, Ryo Hara | 2001-11-27 |
| 5518685 | Steel for carburized gear | Kazuo Sakamoto, Hideo Ueno | 1996-05-21 |
| 5183634 | High strength spring steel | Tsuyoshi Abe, Nobumasa Umezawa, Katsuyuki Uchibori, Junji Ozaki, Hiroharu Motomura | 1993-02-02 |
| 5118469 | High strength spring steel | Tsuyoshi Abe, Nobumasa Umezawa, Katsuyuki Uchibori | 1992-06-02 |