YO

Yasufumi Okumura

Kawasaki: 2 patents #54 of 352Top 20%
SL Sumitomo Riko Company Limited: 1 patents #20 of 93Top 25%
Overall (2019): #105,147 of 560,194Top 20%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
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