KO

Kazuo Okawa

SE Seiko Epson: 6 patents #50 of 1,442Top 4%
Overall (2011): #11,426 of 364,097Top 4%
6
Patents 2011

Issued Patents 2011

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
8076861 Driving method and driving device for discharge lamp, light source device, and image display device Tetsuo Terashima, Kentaro Yamauchi, Takeshi Takezawa 2011-12-13
8044613 Discharge lamp lighting device, control method thereof, and projector Kentaro Yamauchi, Tetsuo Terashima, Takeshi Takezawa 2011-10-25
7999488 Ignition controller, light source, projector and ignition control method 2011-08-16
7999490 Light source, projector, and method for driving light source Tetsuo Terashima, Kentaro Yamauchi, Takeshi Takezawa, Keishi Kimura 2011-08-16
7946715 Light source and projector Kentaro Yamauchi, Tetsuo Terashima, Takeshi Takezawa, Keishi Kimura 2011-05-24
7923940 Discharge lamp lighting device and projector 2011-04-12