HS

Hiroyuki Semba

SI Sumitomo Metal Industries: 10 patents #22 of 1,462Top 2%
NM Nippon Steel & Sumitomo Metal: 8 patents #93 of 1,491Top 7%
NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
📍 Sanda, JP: #12 of 236 inventorsTop 6%
Overall (All Time): #222,460 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
10519533 High Cr-based austenitic stainless steel Atsuro Iseda, Hirokazu Okada, Hiroyuki Hirata, Toshihide Ono, Katsuki TANAKA +2 more 2019-12-31
10266909 High-strength austenitic stainless steel for high-pressure hydrogen gas Tomohiko Omura, Jun Nakamura, Hirokazu Okada, Yusaku Tomio, Hiroyuki Hirata +3 more 2019-04-23
10260125 High-strength austenitic stainless steel for high-pressure hydrogen gas Tomohiko Omura, Jun Nakamura, Hirokazu Okada, Yusaku Tomio, Hiroyuki Hirata +3 more 2019-04-16
9932655 Ni-based alloy Tomoaki Hamaguchi, Hirokazu Okada 2018-04-03
9328403 Ni-based heat resistant alloy Hirokazu Okada, Hiroyuki Hirata, Mitsuru Yoshizawa, Atsuro Iseda 2016-05-03
8808473 Austenitic heat resistant alloy Hiroyuki Hirata, Hirokazu Okada, Kazuhiro Ogawa, Atsuro Iseda, Mitsuru Yoshizawa 2014-08-19
8801876 Ni-based alloy product and producing method thereof Atsuro Iseda, Hiroyuki Hirata, Hirokazu Okada 2014-08-12
8801877 Austenitic heat resistant alloy, heat resistant pressure member comprising the alloy, and method for manufacturing the same member Hirokazu Okada, Masaaki Igarashi 2014-08-12
8696835 Austenitic stainless steel for hydrogen gas and a method for its manufacture Masaaki Igarashi, Tomohiko Omura, Mitsuo Miyahara, Kazuhiko Ogawa 2014-04-15
8663400 Low alloy steel for high-pressure hydrogen gas environment and container for high-pressure hydrogen Tomohiko Omura, Mitsuo Miyahara, Masaaki Igarashi 2014-03-04
8313591 Austenitic heat resistant alloy Hiroyuki Hirata, Atsuro Iseda, Hirokazu Okada, Kaori Kawano, Osamu Miyahara 2012-11-20
8293169 Ni-base heat resistant alloy Atsuro Iseda, Hiroyuki Hirata, Kaori Kawano, Masaaki Igarashi, Osamu Miyahara 2012-10-23
7749431 Stainless steel for high-pressure hydrogen gas Masaaki Igarashi, Mitsuo Miyahara, Kazuhiro Ogawa, Tomohiko Omura 2010-07-06
7628647 Coaxial cable and method for manufacturing the same Takayoshi Koinuma 2009-12-08
7531129 Stainless steel for high-pressure hydrogen gas Masaaki Igarashi, Mitsuo Miyahara, Kazuhiro Ogawa, Tomohiko Omura 2009-05-12
7393597 Welded joint made of an austenitic steel Kazuhiko Ogawa, Masaaki Igarashi, Tomohiko Omura, Mitsuo Miyahara 2008-07-01
7260966 Tube shell for manufacturing a seamless steel pipe and a method for its manufacture Kazuhiro Shimoda, Tomio Yamakawa, Hirofumi Hori, Tsuneo Kondo 2007-08-28
6939415 Austenitic stainless steel and manufacturing method thereof Atsuro Iseda 2005-09-06
6926778 Austenitic stainless steel excellent in high temperature strength and corrosion resistance, heat resistant pressurized parts, and the manufacturing method thereof Atsuro Iseda 2005-08-09
6918968 Austenitic stainless steel Masaaki Igarashi 2005-07-19