RN

Ryoichi Nakayama

SC Sumitomo Metal Mining Co.: 3 patents #199 of 736Top 30%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
MC Minebea Co.: 1 patents #400 of 736Top 55%
NJ Nissan Jidosha: 1 patents #34 of 53Top 65%
Nissan Motor Co.: 1 patents #4,519 of 8,689Top 55%
📍 New York, NY: #2,866 of 20,192 inventorsTop 15%
🗺 New York: #20,336 of 115,490 inventorsTop 20%
Overall (All Time): #753,217 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
7435405 Anti-oxidation method for sulfide minerals in sulfide ore Yoshiyuki Tanaka, Hideyuki Okamoto, Masaki Imamura 2008-10-14
6386927 Screw fastening structure and nut member Shinji Nakano 2002-05-14
6264847 Method of processing cyanide ions by ozone Ryozo Ushio, Naoko Kikuta, Koji Sasaki, Yuji Imaizumi, Iichi Nakamura +2 more 2001-07-24
5842923 Screw and method for its production Masaharu Umemura, Takashi Yamamoto 1998-12-01
5702591 Flotation method for non-ferrous metal variable ores Hideyuki Okamoto, Hiroichi Miyashita 1997-12-30
4637494 Apparatus for moving carriages along ladders Hitoshi Iida 1987-01-20
D275205 Binocular instrument 1984-08-21