Inventor
YAGUMA HIROSHI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “YAGUMA HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROHM CO LTD
10 patentsUS7515124B2Apr 7, 2009
Organic EL drive circuit and organic EL display device using the same organic EL drive circuit
ROHM CO LTD186 citations98
US7615932B2Nov 10, 2009
Reference current generating circuit, organic EL drive circuit and organic EL display device employing it
ROHM CO LTD2 citations62
US7586469B2Sep 8, 2009
Organic EL drive circuit and organic EL display device using the same organic EL drive circuit
ROHM CO LTD2 citations62
US7580013B2Aug 25, 2009
Organic EL drive circuit IC
ROHM CO LTD2 citations62
US7321347B2Jan 22, 2008
Organic EL element drive circuit and organic EL display device using the same drive circuit
ROHM CO LTD2 citations62
US12270826B2Apr 8, 2025
Flight control apparatus
ROHM CO LTD0 citations60
US12309486B2May 20, 2025
Transmission element imaging device and transmission element imaging method
ROHM CO LTD0 citations51
US7372439B2May 13, 2008
Reference current generator circuit of organic EL drive circuit, organic EL drive circuit and organic EL display device
ROHM CO LTD0 citations41
US7570234B2Aug 4, 2009
Organic EL drive circuit and organic EL display device using the same organic EL drive circuit
ROHM CO LTD0 citations39
US8368679B2Feb 5, 2013
Power supply apparatus, liquid crystal driving apparatus and display apparatus
ROHM CO LTD0 citations35