SS

Susumu Sakuma

Brother Kogyo: 9 patents #19 of 536Top 4%
BI Brother Industries: 1 patents #19 of 32Top 60%
Overall (2011): #3,222 of 364,097Top 1%
10
Patents 2011

Issued Patents 2011

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
8073357 Developer cartridge, developing unit and image forming apparatus having seal member for preventing leakage of developer 2011-12-06
8068761 Image forming apparatus having a cleaning unit 2011-11-29
8045894 Image forming apparatus having a remaining developer circulation mechanism Shougo Sato 2011-10-25
8027620 Image formation apparatus and developer cartridge 2011-09-27
8000628 Image forming apparatus with a cleaning device Shougo Sato 2011-08-16
7983590 Developer cartridge and developing unit having shutter for controlling supply of developer therebetween 2011-07-19
D637226 Photosensitive drum unit Takeyuki Takagi 2011-05-03
7929885 Image formation apparatus with developer storage members 2011-04-19
7899355 Image forming apparatus having a cleaning unit 2011-03-01
7881633 Developer cartridge, developing device and image forming apparatus 2011-02-01