KM

Kihachiro Matsumoto

HC Hitachi Koki Co.: 3 patents #334 of 888Top 40%
📍 Hitachinaka, JP: #1,128 of 2,447 inventorsTop 50%
Overall (All Time): #1,656,257 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5375637 Portable electric router Akira Onose 1994-12-27
4938642 Portable electric router Toshiaki Imahashi, Katsuhiko Muto, Yasunori Ogawa 1990-07-03
4669190 Portable motor-driven cutter Tatsuo Innami, Katuo Koizumi, Toshiaki Imahashi 1987-06-02