Inventor
TOMOFUJI YOSHIAKI
JP7 patents
⚠️ This page may combine multiple inventors who share the name “TOMOFUJI YOSHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WACOM CO LTD
5 patentsUS5023408AJun 11, 1991
Electronic blackboard and accessories such as writing tools
WACOM CO LTD181 citations98
US5134388AJul 28, 1992
Electronic blackboard system marker and eraser therefor
WACOM CO LTD93 citations95
USRE35329ESep 17, 1996
Electronic blackboard and accessories such as writing tools
WACOM CO LTD19 citations92
US4832144AMay 23, 1989
Position detector
WACOM CO LTD26 citations92
US4711977ADec 8, 1987
Electronic blackboard apparatus
WACOM CO LTD113 citations90