HK

Hiroshi Kumagai

HC Hitachi Construction Machinery Co.: 1 patents #50 of 156Top 35%
SO Sony: 1 patents #1,281 of 3,100Top 45%
Overall (2017): #148,169 of 506,227Top 30%
2
Patents 2017

Issued Patents 2017

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9704530 Magnetic tape cartridge Yuji Iwahashi 2017-07-11
9562344 Construction machine Kazuhiko Mizoguchi, Masao Nakamura, Hideto Ishibashi 2017-02-07