Hidenori Yoshiyama

Person

  • Tsukuba, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Exhaust gas cleaner

    • Patent number 5,141,714
    • Issue date Aug 25, 1992
    • Kabushiki Kaisha Riken
    • Akira Obuchi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES