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

Haruhiko Ito — 30 Patents

NINidec: 10 patents #85 of 976Top 9%
Mitsubishi Electric: 6 patents #4,940 of 25,717Top 20%
TLTeijin Limited: 5 patents #249 of 1,631Top 20%
NINgk Insulators: 4 patents #658 of 2,083Top 35%
Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
TKTokai Denka Kogyo Kabushiki Kaisha: 1 patents #14 of 32Top 45%
KAKaneka: 1 patents #886 of 1,525Top 60%
NINitta: 1 patents #106 of 237Top 45%
TLTeijin Chemicals Limited: 1 patents #80 of 196Top 45%
Overall (All Time): #124,068 of 4,157,543Top 3%
30 Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
4788518 Thermally-sensitive overcurrent protective relay including wire connection terminal Yuji Sako, Mineo Sano 1988-11-29
4785274 Thermally-sensible overcurrent protective relay including automatic resetting mechanism Yuji Sako, Mineo Sano 1988-11-15
4739144 Wire electrode discharge machining with nozzle gap control Yoshio Shibata, Masato Banzai 1988-04-19
4610802 Method of activating thiourea dioxide Koichiro Fujiyasu, Shigeki Yoneyama 1986-09-09
4502031 Electromagnet and method of producing the same Mineo Sano 1985-02-26