MH

Masaji Harakawa

SC Sumitomo Chemical: 3 patents #1,386 of 4,033Top 35%
📍 Niihama, JP: #188 of 473 inventorsTop 40%
Overall (All Time): #1,658,348 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5224970 Abrasive material Mikio Hayashi 1993-07-06
5002750 Process for producing alumina-based fiber Hidekimi Kadokura, Takesi Matumoto 1991-03-26
4495121 Process for producing inorganic fiber Shozo Horikiri, Hidekimi Kadokura, Kunio Saegusa, Masao Yamagiwa 1985-01-22