OT

Okamoto Tadashi

MK Mitsui Kensetsu Kabushiki Kaisha: 1 patents #14 of 27Top 55%
Overall (All Time): #3,955,765 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4758610 Process of producing resin concrete Utsunomiya Toru, Tamura Tomio, Matsubara Sumiyuki, Hasuo Koichi 1988-07-19