HK

Hirosuke Kubota

TC Takenaka Komuten Co.: 3 patents #5 of 128Top 4%
TC Takenaka Doboku Co.: 2 patents #7 of 22Top 35%
Overall (All Time): #1,674,016 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4770257 Method of preventing loss of drilling mud during boring a hole in the ground Motoki KONDO, Mamoru Shinozaki, Toshiyuki Oshita, Tomohiro Teramura, Masayasu Kitano +1 more 1988-09-13
4226631 Method of solidifying noxious wastes 1980-10-07
4209335 Method and composition, including particular additive for hydraulic cement, for fixing waste matter Ichiro Katayama, Mitsuo Mochizuki, Kuniyoshi Sakane, Toshimichi Mihara, Tokuzo Kitawaki 1980-06-24