KR

Kazuo Rokkaku

KC Koyo Seiko Co.: 7 patents #63 of 749Top 9%
SC Showa Tool Co.: 2 patents #1 of 11Top 10%
IJ Ishikawajima-Harima Jukogyo: 1 patents #170 of 494Top 35%
JT Jtekt: 1 patents #1,102 of 1,969Top 60%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
Overall (All Time): #655,080 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
7882689 Method of manufacturing power transmission chain and pretension load device used in manufacture of power transmission chain Seiji Tada, Kozue Matsumoto 2011-02-08
6402658 Toroidal type continuously variable transmission Shinji Yasuhara, Takao Tamagawa, Shoji Eguchi, Yoshihiro Ono, Masao Goto 2002-06-11
5228786 Full type ball bearing for turbochargers Kiyoshi Tanimoto, Hiroaki Takebayashi 1993-07-20
5033921 Traction drive tool adapter Shinji Yasuhara, Kouichi Ueda, Toshiaki Oku, Eiichi Katayama 1991-07-23
4960405 Traction drive spindle device Eiichi Katayama, Kouichi Ueda, Hiroaki Takebayashi 1990-10-02
4808014 Attaching structure for ceramics bearing Kouichi Ueda, Kouichi Yamauchi, Hiroaki Takebayashi 1989-02-28
4792244 Ceramic bearing construction Yuko Yamashita, Yuji Masumoto, Takao Kimura, Katsutoshi Nishida, Koichi Inoue +1 more 1988-12-20
4770549 Ceramics bearing Hiroaki Takebayashi, Kouich Yamauch 1988-09-13