Inventor
UMEZAWA SHIGEYOSHI
JP5 patents
Patents
5 patentsUS6359243B1Mar 19, 2002
Multi-directional operating switch and electronic device using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD43 citations90
US6580039B2Jun 17, 2003
Multidirectional switch and operation unit using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations82
US6329755B1Dec 11, 2001
Light adjustment device for a vehicle
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations72
US6621224B2Sep 16, 2003
Light-controlling device used for vehicle
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations60
US6951404B2Oct 4, 2005
Illumination knob and method of manufacturing knob
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations50