Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8137613 | Austenitic stainless steel welded joint and austenitic stainless steel welding material | Takahiro Osuki, Kazuhiro Ogawa, Masaaki Igarashi | 2012-03-20 |
| 8071020 | High strength Cr-Ni alloy material and seamless pipe for oil well | Yohei Otome, Masaaki Igarashi, Hisashi Amaya | 2011-12-06 |
| 8013589 | Semiconductor device | — | 2011-09-06 |
| 7951469 | Welding material and welded joint structure | Takahiro Osuki, Kazuhiro Ogawa | 2011-05-31 |
| 7785426 | Welded joint of tempered martensite based heat-resistant steel | Masaaki Tabuchi, Masayuki Kondo, Susumu Tsukamoto, Fujio Abe | 2010-08-31 |
| 7731895 | Austenitic Fe-Ni-Cr alloy | Masaaki Igarashi, Kazuhiro Ogawa, Yasutaka Noguchi | 2010-06-08 |
| 6702906 | Ni-base heat resistant alloy and welded joint thereof | Kazuhiro Ogawa, Kazuyuki Kitamura, Yoshitaka Nishiyama | 2004-03-09 |
| 6486817 | Digital-analog conversion circuit capable of functioning at a low power supply voltage | Tachio Yuasa | 2002-11-26 |
| 6458318 | Heat resistant nickel base alloy | Yoshitaka Nishiyama, Toshiro Anraku, Yoshiatsu Sawaragi, Kazuhiro Ogawa | 2002-10-01 |
| 6362131 | Thermally transferred sheet | Akihiro Horii, Tetsuo Kozumi, Masayoshi Isago, Masataka Mizoguchi | 2002-03-26 |