Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8378116 | Phenylnaphthylimidazole compound and usage of the same | Hirohiko Hirao, Takayuki Murai | 2013-02-19 |
| 8183386 | Phenylnaphthylimidazole compound and usage of the same | Hirohiko Hirao, Takayuki Murai | 2012-05-22 |
| 7754105 | Water-soluble preflux and usage of the same | Hirohiko Hirao, Takayuki Murai | 2010-07-13 |
| 7661577 | Imidazole compound and use thereof | Takayuki Murai, Hirohiko Hirao | 2010-02-16 |
| 5795409 | Surface treating agent for copper or copper alloy | Hirohiko Hirao | 1998-08-18 |
| 5560785 | Method for forming a protective chemical layer on copper and copper alloy surfaces | Hirohiko Hirao, Toshihiro Okamoto, Takayuki Murai, Seiji Sogabe, Miya Tanioka +2 more | 1996-10-01 |
| 5498301 | Agent for treating surfaces of copper and copper alloys | Hirohiko Hirao, Toshihiro Okamoto, Takayuki Murai, Seiji Sogabe, Miya Tanioka +2 more | 1996-03-12 |