Inventor
SUMIYAMA MASAHIDE
JP23 patents
⚠️ This page may combine multiple inventors who share the name “SUMIYAMA MASAHIDE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PANASONIC CORP
12 patentsUS7877856B2Feb 1, 2011
Method of manufacturing a speaker
PANASONIC CORP11 citations83
US7548632B2Jun 16, 2009
Speaker, module using the same, electronic equipment and device, and speaker producing method
PANASONIC CORP11 citations83
US7583812B2Sep 1, 2009
Electro-acoustic converter and electronic device using the same
PANASONIC CORP7 citations73
US8343313B2Jan 1, 2013
Plant for production of paper-made part for speaker, paper-made part for speaker produced thereby, and speaker utilizing the same
PANASONIC CORP2 citations62
US8023685B2Sep 20, 2011
Electroacoustic transducer and electronic device using the same
PANASONIC CORP2 citations62
US7630508B2Dec 8, 2009
Electro-acoustic transducer and electronic apparatus using it
PANASONIC CORP2 citations62
US7548627B2Jun 16, 2009
Speaker, and module, electronic apparatus, and device that use the speaker
PANASONIC CORP4 citations62
US7538820B2May 26, 2009
Information terminal device with angled output units
PANASONIC CORP6 citations62
US7634102B2Dec 15, 2009
Speaker and device using the same
PANASONIC CORP3 citations61
US7460679B2Dec 2, 2008
Flat panel speaker system with a coated diaphragm
PANASONIC CORP6 citations57
US7527516B2May 5, 2009
Portable electronic device
PANASONIC CORP1 citations51
US7502485B2Mar 10, 2009
Loudspeaker, loudspeaker module, and electronic equipment using the loudspeaker module
PANASONIC CORP1 citations50
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
4 patentsUS7362877B2Apr 22, 2008
Electric acoustic converter and electronic device using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31 citations92
US6341167B1Jan 22, 2002
Speaker
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations86
US7388964B2Jun 17, 2008
Loudspeaker, and module and electronic apparatus using the loudspeaker
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations83
US7218743B2May 15, 2007
Speaker module and apparatus using this
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations61
MIMURA KAZUYOSHI
3 patentsUS8199964B2Jun 12, 2012
Speaker diaphragm, speaker dust cap, speaker sub-cone, speaker using these components, and electronic apparatus using the same
MIMURA KAZUYOSHI4 citations58
US8428283B2Apr 23, 2013
Manufacturing method of paper making part for loudspeaker, paper making part for loudspeaker, diaphragm for loudspeaker, sub cone for loudspeaker, dust cap for loudspeaker and loudspeaker
MIMURA KAZUYOSHI0 citations49
US8144912B2Mar 27, 2012
Manufacturing method of paper making part for loudspeaker, paper making part for loudspeaker, diaphragm for loudspeaker, sub cone for loudspeaker, dust cap for loudspeaker and loudspeaker
MIMURA KAZUYOSHI1 citations49