RH

Ryochi Honbo

DE Denso: 1 patents #389 of 1,225Top 35%
TR Tris: 1 patents #11 of 25Top 45%
Overall (2004): #122,661 of 270,089Top 50%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6758881 Metal-graphite brush and production method thereof Takayoshi Otani, Osamu Takada, Mitsuo Ikeda, Yoichi Sakaura, Naoki Morita +5 more 2004-07-06