HK

Hitoshi Koyama

MC Mitsui Engineering & Shipbuilding Co.: 2 patents #4 of 40Top 10%
Overall (2011): #96,805 of 364,097Top 30%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7993450 Method for removal of unburned carbon in fly ash Kazuo Abe, Takao Suzuki, Kazuyoshi Matsuo, Shinichiro Saito 2011-08-09
7918344 Method for removal of unburned carbon from fly ash Kazuo Abe, Takao Suzuki, Kazuyoshi Matsuo, Shinichiro Saito 2011-04-05