HK

Hideyuki Koyama

Kubota: 14 patents #100 of 2,059Top 5%
Overall (All Time): #343,906 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
11378001 Electronic fuel injection type diesel engine Mitsugu Okuda, Yuji Shinohara, Mitsuru Kamiyama, Hiroki Oso 2022-07-05
11371414 Exhaust system for engine Hiroki Oso, Nobuyoshi Okada, Yoshinori Tanaka, Kenji Okamoto 2022-06-28
10982576 Engine that includes blow-by-gas returning system Hiroki Oso, Akira Tanaka, Rina KANEKO, Nobuyoshi Okada 2021-04-20
10815911 Engine stopping device Akira Tanaka, Hiroki Oso, Yoshinori Tanaka, Takahiro Yamazaki, Nobuyoshi Okada 2020-10-27
10669903 Oil cooling structure of engine Hiroki Oso, Hideyuki Goto, Takahiro Yamazaki, Kentaro Nagai, Takashi Yamaguchi +1 more 2020-06-02
10641200 Cooling structure of water-cooled engine Hiroki Oso, Takahiro Yamazaki, Rina KANEKO, Yoshinori Tanaka, Takashi Yamaguchi +1 more 2020-05-05
10415443 Engine Kentaro Nagai, Takahiro Yamazaki, Takahito Hamasaki, Hideyuki Goto, Hiroki Oso +2 more 2019-09-17
10161353 Piston for engine Hiroki Oso, Takahiro Yamazaki, Kentaro Nagai, Rina KANEKO 2018-12-25
10018147 Piston for engine Hiroki Oso, Manabu Miyazaki, Hideyuki Goto, Takahito Hamasaki, Takahiro Yamazaki 2018-07-10
9828933 Engine cooler Kentaro Nagai, Hideyuki Goto, Takahiro Yamazaki, Hiroshi Kuwasaki 2017-11-28
9771854 Engine water-cooling device Naoya Sakurai, Hideyuki Goto, Kentaro Nagai, Tadashi Nakano 2017-09-26
9765671 Exhaust treatment apparatus for engine Tomoya Akitomo, Yuichi Tamaki, Ryutaro Komura 2017-09-19
9429066 Subchamber type combustion chamber for diesel engine Hiroki Kuwayama, Takahiro Yamazaki, Yutaka Ishigaki, Manabu Miyazaki, Katsunori Ikemachi +1 more 2016-08-30
9027933 Engine Hiroki Kuwayama, Takahiro Yamazaki, Yutaka Ishigaki, Manabu Miyazaki, Yoshinori Tanaka +2 more 2015-05-12