Inventor
HAYASHI SEIZO
JP12 patents
⚠️ This page may combine multiple inventors who share the name “HAYASHI SEIZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
11 patentsUS6437465B1Aug 20, 2002
Rotary brush device and vacuum cleaner using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD148 citations99
US6400048B1Jun 4, 2002
Rotary brush device and vacuum cleaner using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD190 citations99
US6323570B1Nov 27, 2001
Rotary brush device and vacuum cleaner using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD217 citations99
US6345411B1Feb 12, 2002
Vacuum cleaner
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD107 citations97
US5144714ASep 8, 1992
Vacuum cleaner
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD120 citations97
US6684451B2Feb 3, 2004
Vacuum cleaner
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD57 citations95
US4637092AJan 20, 1987
Vacuum cleaner with agitator
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD38 citations92
US4977640ADec 18, 1990
Floor nozzle for vacuum cleaner
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations73
US4746092AMay 24, 1988
Apparatus for supporting an electric blower of a vacuum cleaner
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations73
US4217674AAug 19, 1980
Upright vacuum cleaner
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations71
US4716620AJan 5, 1988
Vacuum cleaner
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations62