RH

Ryoji Hirota

NC Nisshin Steel Co.: 6 patents #47 of 514Top 10%
NC Nippon Steel Nisshin Co.: 1 patents #52 of 93Top 60%
Overall (All Time): #727,240 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
10371261 Martensitic stainless-steel sheet and metal gasket Hiroyasu MATSUBAYASHI, Sadayuki Nakamura, Junichi Katsuki 2019-08-06
10125404 Method for producing high elastic limit nonmagnetic steel material using an austenitic stainless steel sheet Hiroyasu MATSUBAYASHI, Sadayuki Nakamura 2018-11-13
10060003 Austenitic stainless steel sheet and metal gasket Hiroyasu MATSUBAYASHI, Sadayuki Nakamura, Junichi Katsuki 2018-08-28
9921130 Fatigue testing device Sadayuki Nakamura, Hiroyasu MATSUBAYASHI, Akira HIRONAKA 2018-03-20
6599376 FE-CR soft magnetic material and a method of manufacturing thereof Hiroshi Morikawa, Tomoharu Shigetomi, Takashi Yamauchi 2003-07-29
6222286 Stepping motor with rust inhibiting and eddy current minimizing characteristics Kazuyuki Watanabe, Hirofumi Nakano, Toshihiko Takemoto 2001-04-24
5211771 Soft magnetic alloy material Takuji Okiyama, Takuji Hara, Yutaka Kawai, Toshihiko Takemoto 1993-05-18