P

Inventor

YOKOTANI RYOJI

JP10 patents
⚠️ This page may combine multiple inventors who share the name “YOKOTANI RYOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

YOKOTANI RYOJI

4 patents
US8592836B2Nov 26, 2013

Light emitting device and illumination apparatus using same

YOKOTANI RYOJI7 citations81
US8894251B2Nov 25, 2014

Lighting device topology for reducing unevenness in LED luminance and color

YOKOTANI RYOJI4 citations70
US8876311B2Nov 4, 2014

Light emitting device and illumination apparatus including same

YOKOTANI RYOJI4 citations69
US8558456B2Oct 15, 2013

Light emitting device and illumination apparatus including same

YOKOTANI RYOJI4 citations60

PANASONIC ELEC WORKS CO LTD

2 patents
US7495322B2Feb 24, 2009

Light-emitting device

PANASONIC ELEC WORKS CO LTD120 citations96
US7717589B2May 18, 2010

Light emitting device using light emitting diode chip

PANASONIC ELEC WORKS CO LTD75 citations95

MATSUSHITA ELECTRIC WORKS LTD

1 patent
US7084435B2Aug 1, 2006

Light emitting device using LED

MATSUSHITA ELECTRIC WORKS LTD107 citations97

IMAMURA HIROSHI

1 patent
US9099333B2Aug 4, 2015

LED lamp device having a fluorescent element shaped for uniform light conversion

IMAMURA HIROSHI12 citations83

URANO YOJI

1 patent
US8967827B2Mar 3, 2015

Lead frame, wiring board, light emitting unit, and illuminating apparatus

URANO YOJI14 citations80

PANASONIC IP MAN CO LTD

1 patent
US9991236B2Jun 5, 2018

LED lamp device having a fluorescent element shaped for uniform light conversion

PANASONIC IP MAN CO LTD0 citations51