Inventor
MATSUO TAMOTSU
JP21 patents
⚠️ This page may combine multiple inventors who share the name “MATSUO TAMOTSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
10 patentsUS4800548AJan 24, 1989
Optical recording and reproducing apparatus with abnormality detector
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD54 citations96
US4688203AAug 18, 1987
Optical recording and reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD59 citations96
US5544137AAug 6, 1996
Optical disc record/playback apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD59 citations95
US4319237AMar 9, 1982
Brightness adjusting circuit of liquid crystal matrix panel for picture display
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD95 citations95
US5359584AOct 25, 1994
Data recording/reproducing method and apparatus having means for reliable detection of unrecorded sectors
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations92
US4736352AApr 5, 1988
Optical recording medium and apparatus for recording and reproducing data therein
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD27 citations92
US4701609AOct 20, 1987
Semiconductor laser drive circuit with peak detection and control
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD35 citations92
US5151893ASep 29, 1992
Optical data recording and reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations87
US4158860AJun 19, 1979
Method for driving an X-Y matrix type liquid crystal display panel
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations73
US4754460AJun 28, 1988
Drive circuit for semiconductor laser of opto-electric recording/playback apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations72
FUJITSU LTD
8 patentsUS6647210B1Nov 11, 2003
Delay adjustment unit and method, optical network unit, and communication system
FUJITSU LTD65 citations94
US6848053B1Jan 25, 2005
Optical network unit and optical line terminal
FUJITSU LTD17 citations90
US7912054B2Mar 22, 2011
Method and apparatus for multicast packet readout control
FUJITSU LTD2 citations61
US6650841B1Nov 18, 2003
Optical subscriber line terminal unit and a state transition control method
FUJITSU LTD2 citations61
US7706391B2Apr 27, 2010
Packet transmission method and device
FUJITSU LTD2 citations60
US7415111B2Aug 19, 2008
Optical network unit and optical line terminal
FUJITSU LTD2 citations60
US6795398B1Sep 21, 2004
ATM cell multiplexer
FUJITSU LTD6 citations60
US7907632B2Mar 15, 2011
Data output apparatus, communication apparatus and switch apparatus
FUJITSU LTD0 citations39