TU

Tsutomu Umehara

TI Toyota Industries: 4 patents #358 of 1,610Top 25%
HC Hitachi Construction Machinery Co.: 1 patents #701 of 1,234Top 60%
Overall (All Time): #1,178,826 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10302028 Work machine, power unit, and diesel engine of work machine Manabu Edamura, Yuusuke Kajita, Masatoshi Hoshino, Kouji Ishikawa, Kentarou Itoga +1 more 2019-05-28
9677497 Fuel injection control apparatus and compression ignition type internal combustion engine Hiroshi Kuzuyama, Takayuki Fuyuto, Masahiro Taki 2017-06-13
8875488 Internal combustion engine Takehito Hamamatsu, Hiroshi Kuzuyama 2014-11-04
6973785 Apparatus and method for controlling EGR in an engine Masaaki Yamaguchi, Hiroki Kinuhata 2005-12-13