Hirotake Ohta

MM Mitsubishi Materials: 1 patents #812 of 1,543Top 55%

M( Mitsubishi Polycrystalline Silicon America Corporation (Mipsa): 1 patents #11 of 19Top 60%

Overall (All Time): #2,157,944 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
7223303	Silicon cleaning method for semiconductor materials and polycrystalline silicon chunk	—	2007-05-29
4955299	Web printing press with replaceable print unit	—	1990-09-11