Inventor
UNUMA SADAO
JP17 patents
⚠️ This page may combine multiple inventors who share the name “UNUMA SADAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOKAI KOGYO CO LTD
16 patentsUS5048739ASep 17, 1991
Integral frame type paper feeder
TOKAI KOGYO CO LTD21 citations81
US5127568AJul 7, 1992
Lid for sheet feed tractor
TOKAI KOGYO CO LTD8 citations73
US5026328AJun 25, 1991
Belt driving sprocket in paper feeder
TOKAI KOGYO CO LTD8 citations73
US4826337AMay 2, 1989
Web feed tractor
TOKAI KOGYO CO LTD14 citations73
US5172843ADec 22, 1992
Structures of driving and driven sprockets and belt reception rotary member in paper feed apparatus
TOKAI KOGYO CO LTD4 citations62
US5165586ANov 24, 1992
Paper feed apparatus equipped with feed belt supporters
TOKAI KOGYO CO LTD6 citations62
US5110025AMay 5, 1992
Paper feeder having a paper exhaustion detector
TOKAI KOGYO CO LTD3 citations62
US4961526AOct 9, 1990
Paper feeder
TOKAI KOGYO CO LTD3 citations62
US4940449AJul 10, 1990
Paper feed tractor
TOKAI KOGYO CO LTD2 citations62
US4925076AMay 15, 1990
Paper feeder
TOKAI KOGYO CO LTD3 citations62
US4789088ADec 6, 1988
Paper feeding device
TOKAI KOGYO CO LTD3 citations62
US4773579ASep 27, 1988
Web feed tractor
TOKAI KOGYO CO LTD3 citations62
US4836430AJun 6, 1989
Paper feed apparatus
TOKAI KOGYO CO LTD1 citations52
US5002413AMar 26, 1991
Paper feed tractor
TOKAI KOGYO CO LTD1 citations51
US5131578AJul 21, 1992
Clamper of paper feed tractor
TOKAI KOGYO CO LTD0 citations41
US5797530AAug 25, 1998
Sheet feed tractor
TOKAI KOGYO CO LTD0 citations30