SS

Susumu Sakuma

Brother Kogyo: 51 patents #113 of 2,767Top 5%
FK Futaba Denshi Kogyo K.K.: 4 patents #36 of 173Top 25%
BI Brother Industries: 2 patents #146 of 325Top 45%
Overall (All Time): #42,014 of 4,157,543Top 2%
58
Patents All Time

Issued Patents All Time

Showing 26–50 of 58 patents

Patent #TitleCo-InventorsDate
8315537 Image-forming device having cleaning unit for removing developer Kensuke Miyahara, Hikaru Yoshizumi, Shougo Sato 2012-11-20
8311443 Image-forming device having cleaning unit opposing belt Shougo Sato 2012-11-13
8301059 Image formation apparatus and developer cartridge 2012-10-30
8290393 Image forming apparatus having waste toner box 2012-10-16
8270869 Image forming apparatus, supporting member, and image forming unit 2012-09-18
8270870 Image forming apparatus, supporting member, and image forming unit 2012-09-18
8265517 Image forming apparatus having photosensitive member providing a belt with developer and cleaning member for cleaning the belt Kensuke Miyahara, Shougo Sato 2012-09-11
8265523 Image forming apparatus having replaceable developer cartridges 2012-09-11
8233817 Image forming apparatus 2012-07-31
8229330 Developing unit 2012-07-24
8204410 Developer cartridge, developing device, process cartridge and image forming apparatus Ryuya Yamazaki, Takeyuki Takagi 2012-06-19
8190066 Developing unit 2012-05-29
8175490 Image forming apparatus with a cleaning unit Shougo Sato 2012-05-08
8165507 Image formation apparatus and developer cartridge 2012-04-24
8165501 Image forming apparatus having cleaning unit fixed to drawer Aya Tamura, Shougo Sato 2012-04-24
8165492 Developer cartridge, developing unit and image forming apparatus 2012-04-24
8155567 Developing device, process cartridge and image forming apparatus 2012-04-10
8107829 Image forming apparatus with a developer circulation mechanism Shougo Sato 2012-01-31
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