Inventor
MOTOHASHI RYO
JP18 patents
⚠️ This page may combine multiple inventors who share the name “MOTOHASHI RYO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC WORKS LTD
15 patentsUS4954736ASep 4, 1990
Permanent magnet rotor with magnets secured by synthetic resin
MATSUSHITA ELECTRIC WORKS LTD223 citations98
US5632087AMay 27, 1997
Reciprocatory dry shaver
MATSUSHITA ELECTRIC WORKS LTD102 citations97
US5736797AApr 7, 1998
Linear oscillating motor
MATSUSHITA ELECTRIC WORKS LTD86 citations95
US7334338B2Feb 26, 2008
Reciprocatory dry shaver
MATSUSHITA ELECTRIC WORKS LTD29 citations92
US7053507B2May 30, 2006
Linear oscillating actuator system
MATSUSHITA ELECTRIC WORKS LTD24 citations92
US7020966B2Apr 4, 2006
Dry shaver with a cradle shaving head
MATSUSHITA ELECTRIC WORKS LTD36 citations92
US7017270B2Mar 28, 2006
Reciprocation type electric shaver
MATSUSHITA ELECTRIC WORKS LTD23 citations92
US6991217B2Jan 31, 2006
Vibration type linear actuator
MATSUSHITA ELECTRIC WORKS LTD44 citations92
US6559563B1May 6, 2003
Linear oscillating actuator
MATSUSHITA ELECTRIC WORKS LTD43 citations92
US7218018B2May 15, 2007
Actuator
MATSUSHITA ELECTRIC WORKS LTD30 citations91
US4704567ANov 3, 1987
Brushless D.C. motor having alternating wider and narrower pole shoes
MATSUSHITA ELECTRIC WORKS LTD27 citations90
US7607229B2Oct 27, 2009
Electric razor
MATSUSHITA ELECTRIC WORKS LTD13 citations84
US7443059B2Oct 28, 2008
Linear actuator for both vibrating and rolling movement and electric toothbrush using the same
MATSUSHITA ELECTRIC WORKS LTD17 citations83
US7443058B2Oct 28, 2008
Actuator capable of reciprocal linear driving and rolling driving and power toothbrush using the same
MATSUSHITA ELECTRIC WORKS LTD17 citations83
US6946756B2Sep 20, 2005
Oscillatory linear actuator
MATSUSHITA ELECTRIC WORKS LTD8 citations73
PANASONIC ELEC WORKS CO LTD
3 patentsUS7495358B2Feb 24, 2009
Vibratory linear actuator and electric toothbrush using the same
PANASONIC ELEC WORKS CO LTD70 citations97
US7474018B2Jan 6, 2009
Reciprocation type linear driving actuator and power toothbrush using the same
PANASONIC ELEC WORKS CO LTD48 citations92
US7712174B2May 11, 2010
Rolling driving actuator and power toothbrush using the same
PANASONIC ELEC WORKS CO LTD18 citations83