CO

Chikara Ohki

NT Ntn: 39 patents #12 of 1,364Top 1%
Overall (All Time): #82,231 of 4,157,543Top 2%
39
Patents All Time

Issued Patents All Time

Showing 26–39 of 39 patents

Patent #TitleCo-InventorsDate
8425690 Bearing part, heat treatment method thereof, and rolling bearing 2013-04-23
8337089 Mechanical component and rolling bearing Kazuhiro Yagita, Takashi Ito, Hiroshi Morishita 2012-12-25
8333516 Bearing for alternator and bearing for pulley Tomoaki Goto 2012-12-18
8177928 Method of restrained-quenching of annular member 2012-05-15
8128761 Carbonitriding method, machinery component fabrication method, and machinery component 2012-03-06
8002907 Bearing's component, heat treatment method thereof, heat treatment apparatus, and rolling bearing 2011-08-23
7744283 Bearing for alternator and bearing for pulley Tomoaki Goto 2010-06-29
7690847 Rolling bearing Kikuo Maeda 2010-04-06
7682087 Transmission component, method of manufacturing the same, and tapered roller bearing Kouichi Okugami, Yoshinori Muramatsu, Michio Hori 2010-03-23
7641742 Rolling bearing and heat treatment method for steel Kohei Fujita 2010-01-05
7585114 Compressor bearing and compressor component Tomoaki Goto 2009-09-08
7438477 Bearing part, heat treatment method thereof, and rolling bearing 2008-10-21
7334943 Differential support structure, differential's component, method of manufacturing differential support structure, and method of manufacturing differential's component Kouichi Okugami, Yoshinori Muramatsu 2008-02-26
7270607 Constant velocity universal joint and method of manufacturing the same Hiroshi Murakami 2007-09-18