KY

Koshi Yoshimura

HI Hitachi: 11 patents #3,813 of 28,497Top 15%
SC Sumitomo Special Metals Co.: 1 patents #136 of 262Top 55%
Overall (All Time): #414,457 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10770224 Method for forming electrolytic copper plating film on surface of rare earth metal-based permanent magnet Masanao Kamachi 2020-09-08
9558885 Method for producing surface-modified rare earth metal-based sintered magnet Mahoro Fujihara 2017-01-31
9275794 Corrosion-resistant magnet and method for producing the same Atsushi Kikugawa, Yoshimi Tochishita, Masanao Kamachi, Nobuhiro Misumi 2016-03-01
9275795 Corrosion-resistant magnet and method for producing the same Toshinobu Niinae, Koji Kamiyama 2016-03-01
9267217 Production method for R—Fe—B based sintered magnet having plating film on surface thereof Masanao Kamachi, Takahiro Isozaki 2016-02-23
9175376 Method for producing surface-modified rare earth metal-based sintered magnet and surface-modified rare earth metal-based sintered magnet Mahoro Fujihara, Atsushi Kikugawa 2015-11-03
8945318 R-Fe-B type rare earth sintered magnet and process for production of the same Hideyuki Morimoto, Tomoori Odaka 2015-02-03
8641833 Corrosion-resistant magnet and method for producing the same Toshinobu Niinae, Koji Kamiyama 2014-02-04
8206516 R—Fe—B rare earth sintered magnet and method for producing same Hideyuki Morimoto, Tomoori Odaka 2012-06-26
8187392 R-Fe-B type rare earth sintered magnet and process for production of the same Hideyuki Morimoto, Tomoori Odaka 2012-05-29
8163106 R-Fe-B based sintered magnet having on the surface thereof vapor deposited film of aluminum or alloy thereof, and method for producing the same Atsushi Kikugawa, Yoshimi Tochishita, Masanao Kamachi, Nobuhiro Misumi 2012-04-24
6211762 Corrosion-resistant permanent magnet and method for manufacturing the same Fumiaki Kikui, Masako Ikegami 2001-04-03