RU

Ryoji Utsumi

MC Maruo Calcium Co.: 1 patents #28 of 44Top 65%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
Overall (All Time): #1,941,342 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10336888 Surface-treated calcium carbonate filler for curable resin composition, and curable resin composition containing filler Shigeru Sakaguchi, Takaaki Nishioka 2019-07-02
6742989 Structures of turbine scroll and blades Katsuyuki Osako, Shozo Maekawa, Motoki Ebisu, Takashi Mikogami 2004-06-01