HK

Hiroaki Kaji

KC Koyo Seiko Co.: 10 patents #34 of 749Top 5%
SK Showa Denko K.K.: 2 patents #639 of 1,736Top 40%
TC Toyoda Gosei Co.: 1 patents #1,271 of 2,296Top 60%
Overall (All Time): #384,217 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
8802187 Solar cell and process for producing the same Yoshiaki Ikenoue, Hisayuki Miki, Kenzo Hanawa, Yasumasa Sasaki, Hitoshi Yokouchi +1 more 2014-08-12
8674398 Group III nitride semiconductor light emitting device and production method thereof, and lamp Hisayuki Miki 2014-03-18
8148712 Group III nitride compound semiconductor stacked structure Hisayuki Miki, Hiromitsu Sakai, Kenzo Hanawa, Yasunori Yokoyama, Yasumasa Sasaki 2012-04-03
6690138 Electric power steering system Kazuyuki Yoshida, Nobuyuki Sasaguchi 2004-02-10
6390229 Electric power steering system 2002-05-21
6366842 Power steering apparatus Masahiko Sakamaki 2002-04-02
6311799 Power steering apparatus 2001-11-06
6250417 Power steering apparatus Masahiko Sakamaki 2001-06-26
6244372 Power steering apparatus Masahiko Sakamaki 2001-06-12
6158545 Power steering apparatus Yuji Kariatsumari 2000-12-12
6144909 Power steering system with hydraulic pump motor speed control Masahiko Sakamaki 2000-11-07
6131059 Steering angle middle point detecting device and power steering apparatus Masahiko Sakamaki 2000-10-10
6064166 Power steering apparatus 2000-05-16