Inventor
SENGA HISASHI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “SENGA HISASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
6 patentsUS7010006B2Mar 7, 2006
Light source apparatus and its control method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations91
US7177253B2Feb 13, 2007
Optical disc drive for controlling laser emission
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations83
US7366080B2Apr 29, 2008
Laser control unit, laser control circuit, and laser-power adjustment method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US7310293B2Dec 18, 2007
Method and apparatus for controlling laser power using a test light emission pattern having a multipulse light emission interval
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations62
US7085297B2Aug 1, 2006
Driving method and driving circuit of light source apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations62
US6642952B2Nov 4, 2003
Laser drive method and laser drive system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations62
PANASONIC CORP
3 patentsUS8036254B2Oct 11, 2011
Semiconductor laser driving circuit, and optical disc device and integrated circuit provided with semiconductor laser driving circuit
PANASONIC CORP3 citations62
US7697400B2Apr 13, 2010
Optical pickup and optical disc device
PANASONIC CORP1 citations51
US7492693B2Feb 17, 2009
Optical recording/reproducing apparatus with transmission amount variation unit
PANASONIC CORP0 citations41