Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5846344 | Spring steel of high strength and high corrosion resistance | Yasunobu Kawaguchi, Masataka Shimotsusa, Kan Momozaki, Takenori Nakayama, Shigeaki Miyauchi +1 more | 1998-12-08 |
| 5776267 | Spring steel with excellent resistance to hydrogen embrittlement and fatigue | Shigenobu Nanba, Hiroshi Yaguchi, Masataka Shimotsusa, Nobuhiko Ibaraki, Takenori Nakayama +3 more | 1998-07-07 |
| 5508002 | Spring steel of high strength and high corrosion resistance | Yasunobu Kawaguchi, Masataka Shimotsusa, Kan Momozaki, Takenori Nakayama, Shigeaki Miyauchi +1 more | 1996-04-16 |