Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10538823 | Steel sheet and a method for its manufacture | Yasuaki Tanaka, Toshiro Tomida | 2020-01-21 |
| 10407758 | Steel for oil country tubular goods and method of producing the same | Tomohiko Omura, Yuji Arai, Akihiro Sakamoto, Kazuo Okamura, Kenji Yamamoto +3 more | 2019-09-10 |
| 10378090 | Steel material | Masahito Tasaka, Yoshiaki Nakazawa, Yasuaki Tanaka, Toshiro Tomida | 2019-08-13 |
| 10041158 | Multi-phase hot-rolled steel sheet having improved dynamic strength and a method for its manufacture | Yasuaki Tanaka, Toshiro Tomida | 2018-08-07 |
| 9994942 | Steel material | Yasuaki Tanaka, Masahito Tasaka, Yoshiaki Nakazawa, Toshiro Tomida | 2018-06-12 |
| 9970073 | Hot-rolled, cold rolled, and plated steel sheet having improved uniform and local ductility at a high strain rate | Yasuaki Tanaka, Toshiro Tomida | 2018-05-15 |
| 9909198 | Method for producing a low alloy steel for oil country tubular goods having excellent sulfide stress cracking resistance | Tomohiko Omura, Yuji Arai, Akihiro Sakamoto, Kazuo Okamura, Kenji Yamamoto +1 more | 2018-03-06 |
| 9862428 | Steel material and impact absorbing member | Masahito Tasaka, Yoshiaki Nakazawa, Yasuaki Tanaka, Toshiro Tomida | 2018-01-09 |
| 9809874 | Steel sheet suitable for impact absorbing member and method for its manufacture | Yasuaki Tanaka, Masahito Tasaka, Yoshiaki Nakazawa, Takuya Nishio, Masayuki Wakita +2 more | 2017-11-07 |
| 9034118 | Method for manufacturing hot-rolled sheet having fine-grained ferrite, and hot-rolled sheet | Suguhiro Fukushima, Manabu Eto, Tamotsu Sasaki, Masayuki Wakita | 2015-05-19 |
| 8404060 | Method for manufacturing hot-rolled sheet having fine-grained ferrite, and hot-rolled sheet | Suguhiro Fukushima, Manabu Eto, Tamotsu Sasaki, Masayuki Wakita | 2013-03-26 |
| 8313591 | Austenitic heat resistant alloy | Hiroyuki Hirata, Atsuro Iseda, Hirokazu Okada, Hiroyuki Semba, Osamu Miyahara | 2012-11-20 |
| 8293169 | Ni-base heat resistant alloy | Hiroyuki Semba, Atsuro Iseda, Hiroyuki Hirata, Masaaki Igarashi, Osamu Miyahara | 2012-10-23 |
| 8257517 | Method of producing cold-rolled steel sheet | Toshirou Tomida, Norio Imai, Mitsuru Yoshida, Masayuki Wakita, Tamotsu Toki +2 more | 2012-09-04 |
| 7935303 | Low alloy steel | Takashi Nakashima, Masaaki Igarashi | 2011-05-03 |
| 7927433 | Cold-rolled steel sheet | Toshirou Tomida, Norio Imai, Mitsuru Yoshida, Masayuki Wakita, Tamotsu Toki +2 more | 2011-04-19 |
| 7879164 | Method of producing hot-rolled steel sheet | Toshirou Tomida, Norio Imai, Mitsuru Yoshida, Masayuki Wakita, Tamotsu Toki +2 more | 2011-02-01 |
| 7731808 | Hot-rolled steel sheet and cold-rolled steel sheet and manufacturing method thereof | Toshirou Tomida, Norio Imai, Mitsuru Yoshida, Masayuki Wakita, Tamotsu Toki +2 more | 2010-06-08 |
| 6958099 | High toughness steel material and method of producing steel pipes using same | Shigeru Nakamura, Tomohiko Omura, Toshiharu Abe | 2005-10-25 |
| 6514359 | Heat resistant steel | — | 2003-02-04 |
| 6379611 | High strength, low alloy, heat resistant steel | Nobuyoshi Komai, Fujimitsu Masuyama, Tomomitsu Yokoyama, Hiroyuki Hirata, Takao Kan | 2002-04-30 |