Inventor
TOYODA RYUICHI
JP8 patents
⚠️ This page may combine multiple inventors who share the name “TOYODA RYUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
7 patentsUS5159321AOct 27, 1992
Pen-type computer input device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD109 citations95
US5027115AJun 25, 1991
Pen-type computer input device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD81 citations95
US5371516ADec 6, 1994
Pen-type computer input device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD66 citations92
US6968161B2Nov 22, 2005
Portable telephone
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations91
US5210405AMay 11, 1993
Pen-type input device for computers having ball with rotational sensors
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations91
US7184275B2Feb 27, 2007
Electronic device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations90
US6914982B2Jul 5, 2005
Folding portable cellular phone
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations90