Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8815147 | Cold die steel excellent in characteristic of suppressing dimensional change | Hideshi Nakatsu, Shugo Komatsubara | 2014-08-26 |
| 8480821 | Piston ring material for internal combustion engine | Katsuhiko Ohishi, Toshihiro Uehara | 2013-07-09 |
| 8409712 | Alloy to be surface-coated and sliding members | Kenji Yokoyama, Toshihiro Uehara, Takehiro Ohno, Katsuhiko Ohishi | 2013-04-02 |
| 6527879 | Self-lubricating piston ring material for internal combustion engine and piston ring | Takehiro Ohno, Yoshiki Masugata | 2003-03-04 |
| 5489367 | Target for reactive sputtering and film-forming method using the target | Akitoshi Hiraki | 1996-02-06 |