Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10632521 | Method for producing a rifled tube | Takashi Nakashima, Takeshi Miki, Shunichi Otsuka | 2020-04-28 |
| 10519533 | High Cr-based austenitic stainless steel | Hiroyuki Semba, Hirokazu Okada, Hiroyuki Hirata, Toshihide Ono, Katsuki TANAKA +2 more | 2019-12-31 |
| 9328403 | Ni-based heat resistant alloy | Hiroyuki Semba, Hirokazu Okada, Hiroyuki Hirata, Mitsuru Yoshizawa | 2016-05-03 |
| 9153348 | Double-walled tube with interface gap and production method therefor | Takashi Nakashima, Tetsuo Yokoyama, Tadashi Kawakami, Takuya HANADA | 2015-10-06 |
| 8808473 | Austenitic heat resistant alloy | Hiroyuki Hirata, Hirokazu Okada, Hiroyuki Semba, Kazuhiro Ogawa, Mitsuru Yoshizawa | 2014-08-19 |
| 8801876 | Ni-based alloy product and producing method thereof | Hiroyuki Hirata, Hirokazu Okada, Hiroyuki Semba | 2014-08-12 |
| 8313591 | Austenitic heat resistant alloy | Hiroyuki Hirata, Hirokazu Okada, Hiroyuki Semba, Kaori Kawano, Osamu Miyahara | 2012-11-20 |
| 8293169 | Ni-base heat resistant alloy | Hiroyuki Semba, Hiroyuki Hirata, Kaori Kawano, Masaaki Igarashi, Osamu Miyahara | 2012-10-23 |
| 7014720 | Austenitic stainless steel tube excellent in steam oxidation resistance and a manufacturing method thereof | — | 2006-03-21 |
| 6939415 | Austenitic stainless steel and manufacturing method thereof | Hiroyuki Semba | 2005-09-06 |
| 6926778 | Austenitic stainless steel excellent in high temperature strength and corrosion resistance, heat resistant pressurized parts, and the manufacturing method thereof | Hiroyuki Semba | 2005-08-09 |
| 5407635 | Low-chromium ferritic heat-resistant steel with improved toughness and creep strength | Yoshiatsu Sawaragi, Fujimitsu Masuyama, Tomomitsu Yokoyama | 1995-04-18 |
| 5240516 | High-chromium ferritic, heat-resistant steel having improved resistance to copper checking | Yoshiatsu Sawaragi, Fujimitsu Mausyama, Tomomitsu Yokoyama | 1993-08-31 |
| 5211909 | Low-alloy heat-resistant steel having improved creep strength and toughness | Yoshiatsu Sawaragi, Fujimitsu Masuyama, Tomomitsu Yokoyama | 1993-05-18 |
| 5069870 | High-strength high-CR steel with excellent toughness and oxidation resistance | Yoshiatsu Sawaragi | 1991-12-03 |
| 4957701 | High-strength high-Cr ferritic heat-resistant steel | Fujimitsu Masuyama, Takashi Daikoku, Hisao Haneda, Kunihiko Yoshikama, Hiroshi Teranishi | 1990-09-18 |
| 4799972 | Process for producing a high strength high-Cr ferritic heat-resistant steel | Fujimitsu Masuyama, Takashi Daikoku, Hisao Haneda, Kunihiko Yoshikawa, Hiroshi Teranishi | 1989-01-24 |