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 25 most recent of 39 patents

Patent #TitleCo-InventorsDate
12169000 Mechanical component and method for manufacturing mechanical component Ayaka Yamahara, Miyu SATO 2024-12-17
12163555 Bearing part and rolling bearing Masahiro Yamada 2024-12-10
11781596 Bearing component and method for manufacturing the same Hiroshi Yuki, Miyu SATO 2023-10-10
11137031 Bearing part, rolling bearing, and method for manufacturing bearing part Masahiro Yamada 2021-10-05
10730098 Method of manufacturing rolling bearing ring Kohei MIZUTA 2020-08-04
10718377 Method for producing bearing ring, double row tapered roller bearing, and method for producing double row tapered roller bearing Michio Hori, Hideto Torisawa, Hiroshi Yuki, Kazuhiro Yagita 2020-07-21
10525521 Method of manufacturing rolling bearing ring and rolling bearing ring Kohei MIZUTA 2020-01-07
10378076 Double row tapered roller bearing, bearing ring, and method for producing double row tapered roller bearing Michio Hori, Hideto Torisawa, Hiroshi Yuki, Kazuhiro Yagita 2019-08-13
10344801 Bearing part and rolling bearing 2019-07-09
10156259 Bearing component and rolling bearing Yukio Matsubara, Daisuke Sato, Noriaki MIWA 2018-12-18
10107335 Bearing component and rolling bearing Daisuke Sato 2018-10-23
10094422 Bearing component and rolling bearing Yukio Matsubara, Daisuke Sato 2018-10-09
10087989 Bearing component and rolling bearing Daisuke Sato 2018-10-02
10047429 Gas nitrocarburizing method and method for manufacturing bearing part 2018-08-14
9951816 Bearing part, rolling bearing, and method for manufacturing bearing part Daisuke Sato 2018-04-24
9487843 Method for producing a bearing ring Hiroshi Yuki, Kazuhiro Yagita 2016-11-08
9206490 Bearing part, rolling bearing, and methods of manufacturing them Takashi Ueno, Daisuke Sato, Kyouhei Kageyama, Shougo Shimizu 2015-12-08
9181599 Method for heat-treating ring-shaped member and method for producing ring-shaped member 2015-11-10
9062355 Carbonitriding method, machinery component fabrication method, and machinery component 2015-06-23
9032783 Bearing part, bearing, and method for inspecting bearing part 2015-05-19
8783961 Bearing for alternator and bearing for pulley Tomoaki Goto 2014-07-22
8747572 Carbonitriding method, machinery component fabrication method, and machinery component 2014-06-10
8485730 Rolling bearing Hiroshi Morishita, Takashi Ito, Chikage Akai, Kazuhiro Yagita 2013-07-16
8453528 Mechanical component and rolling bearing Kazuhiro Yagita, Takashi Ito, Hiroshi Morishita 2013-06-04
8444912 Heat treatment furnace 2013-05-21