Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
HM

Hideaki Maeda — 82 Patents

FAFanuc: 31 patents #68 of 1,735Top 4%
HGHGST: 12 patents #153 of 1,677Top 10%
RIRiken: 7 patents #79 of 1,824Top 5%
TKToda Kogyo: 4 patents #92 of 328Top 30%
Samsung: 4 patents #25,854 of 75,807Top 35%
Mitsubishi Electric: 4 patents #7,099 of 25,717Top 30%
Kabushiki Kaisha Toshiba: 4 patents #6,684 of 21,451Top 35%
YAYamasa: 3 patents #21 of 108Top 20%
Dow Global Technologies: 2 patents #1,896 of 4,534Top 45%
HBHgst Netherlands, B.V.: 2 patents #341 of 972Top 40%
Hitachi: 2 patents #13,388 of 28,497Top 50%
NUNational University Corporation Chiba University: 1 patents #100 of 320Top 35%
NSNational Institute For Materials Science: 1 patents #361 of 901Top 45%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
MIMitsubishi Cable Industries: 1 patents #162 of 372Top 45%
TOTokkyokiki: 1 patents #11 of 18Top 65%
TKToyo Boseki Kabushiki Kaisha: 1 patents #541 of 1,085Top 50%
JTJapan Superconductor Technology: 1 patents #8 of 26Top 35%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Toyota: 1 patents #15,335 of 26,838Top 60%
Overall (All Time): #21,628 of 4,157,543Top 1%
82 Patents All Time

Issued Patents All Time

Showing 76–82 of 82 patents

Patent #TitleCo-InventorsDate
5827569 Hydrogen separation membrane and process for producing the same Shigeo Akiyama, Hiroshi Anzai, Shigeharu Morooka, Katsuki Kusakabe 1998-10-27
5683059 Bobbin for superconducting coils Tsukushi Hara, Masahiko Nakade, Takeshi Ohkuma, Kenji Tasaki, Takashi Yazawa +4 more 1997-11-04
5619415 Method of drawing a cutting area Masaki Seki, Satoru Shinozaki 1997-04-08
5404122 Superconducting coil apparatus with a quenching prevention means Masami Urata, Katsumi Kurosawa, Shoji Matsuda 1995-04-04
5387889 Superconducting magnet apparatus Takashi Yazawa, Ikuo Tashiro 1995-02-07
5383110 Method of programming primary and secondary machining operations using an interactive numerical control apparatus Naoki Fujita, Teruyuki Matsumura 1995-01-17
5325080 Superconducting coil apparatus and method of manufacturing the same Rohana Chandratilleke 1994-06-28