RY

Ryoji Yokotani

PA Panasonic: 9 patents #2,933 of 21,108Top 15%
CO Comcast: 1 patents #2,409 of 4,447Top 55%
Overall (All Time): #508,997 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
9991236 LED lamp device having a fluorescent element shaped for uniform light conversion Hiroshi Imamura 2018-06-05
9099333 LED lamp device having a fluorescent element shaped for uniform light conversion Hiroshi Imamura 2015-08-04
8967827 Lead frame, wiring board, light emitting unit, and illuminating apparatus Yoji Urano, Ikko Kuzuhara, Kenichiro Tanaka 2015-03-03
8894251 Lighting device topology for reducing unevenness in LED luminance and color Keiji Kiba, Kenichiro Tanaka 2014-11-25
8876311 Light emitting device and illumination apparatus including same Keiji Kiba 2014-11-04
8592836 Light emitting device and illumination apparatus using same Yoji Urano, Ikko Kuzuhara, Kenichiro Tanaka 2013-11-26
8558456 Light emitting device and illumination apparatus including same 2013-10-15
7717589 Light emitting device using light emitting diode chip Kouji Nishioka, Masaru Sugimoto, Hideyoshi Kimura, Yutaka Iwahori, Takuma Hashmoto +4 more 2010-05-18
7495322 Light-emitting device Takuma Hashimoto, Masaru Sugimoto, Koji Nishioka, Yutaka Iwahori, Shinya Ishizaki +5 more 2009-02-24
7084435 Light emitting device using LED Masaru Sugimoto, Masao Yamaguchi, Takuma Hashimoto, Koji Nishioka, Hideyoshi Kimura +2 more 2006-08-01