YO

Yasufumi Okumura

Kawasaki: 11 patents #149 of 2,943Top 6%
KC Kawasaki Railcar Manufacturing Co.: 2 patents #5 of 38Top 15%
SC Starlite Co.: 1 patents #3 of 44Top 7%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
SL Sumitomo Riko Company Limited: 1 patents #206 of 446Top 50%
Overall (All Time): #373,248 of 4,157,543Top 9%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
11787451 Axle box suspension and elastic bushing shaft body for use in railcar Yukitaka Taga, Fumikazu Kounoike 2023-10-17
11407434 Rubbing plate of side bearer of railcar bogie and side bearer Yoshi Sato, Keiji Tada, Noriaki Shibita 2022-08-09
10422685 Load measuring device for railcar bogie Takehiro Nishimura, Shunichi Nakao, Shigehiro Otsubo, Kei KITAGAKI 2019-09-24
10399579 Axle box suspension of railcar bogie 2019-09-03
10086850 Air spring Hirokazu Haraguchi, Takehiro Nishimura 2018-10-02
10053119 Plate spring cover and railcar bogie including plate spring cover Takehiro Nishimura, Shunichi Nakao, Shintaro ANDO 2018-08-21
9802627 Railcar bogie Takehiro Nishimura, Shunichi Nakao, Shintaro ANDO 2017-10-31
9592840 Railcar axle box suspension Takehiro Nishimura, Shintaro ANDO, Shunichi Nakao 2017-03-14
9573604 Railcar bogie Takehiro Nishimura, Shunichi Nakao, Takeyoshi Kusunoki 2017-02-21
9545933 Air spring and railcar Takehiro Nishimura, Kazuhiro Onishi, Chihiro Okayama 2017-01-17
9358989 Railcar bogie Takehiro Nishimura, Shunichi Nakao, Takeyoshi Kusunoki 2016-06-07
8297199 Railcar primary suspension Takehiro Nishimura 2012-10-30
7004078 Truck for railroad car Takehiro Nishimura, Keisuke Takahashi, Junichi Sakamoto 2006-02-28