Inventor
NAGAMINE MASAYUKI
JP36 patents
⚠️ This page may combine multiple inventors who share the name “NAGAMINE MASAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
34 patentsUS6940254B2Sep 6, 2005
Trade-in battery system
SONY CORP148 citations96
US6277522B1Aug 21, 2001
Non-aqueous electrolyte secondary cell cathode material and non-aqueous electrolyte secondary cell employing the cathode material
SONY CORP48 citations96
US5451477ASep 19, 1995
Non-aqueous liquid electrolyte secondary battery
SONY CORP81 citations96
US6139815AOct 31, 2000
Hydrogen lithium titanate and manufacturing method therefor
SONY CORP62 citations94
US7138207B2Nov 21, 2006
Non-aqueous electrolyte secondary cell
SONY CORP25 citations93
US7014954B2Mar 21, 2006
Nonaqueous electrolyte secondary battery including vinylene carbonate and an antioxidant in the electrolyte
SONY CORP27 citations93
US6146790ANov 14, 2000
Non-aqueous electrolyte secondary cell
SONY CORP26 citations93
US5916707AJun 29, 1999
Nonaqueous-electrolyte secondary battery and battery case for limiting expansion thereof due to internal pressure
SONY CORP48 citations93
US7754389B2Jul 13, 2010
Battery including an electrolyte solution comprising a halogenated carbonate derivative
SONY CORP37 citations92
US6806003B1Oct 19, 2004
Nonaqueous electrolyte secondary battery having a negative electrode containing carbon fibers and carbon flakes
SONY CORP23 citations92
US6335122B1Jan 1, 2002
Carbonaceous electrode material for non-aqueous secondary battery
SONY CORP41 citations92
US6120938ASep 19, 2000
Non-aqueous electrolyte secondary cell
SONY CORP39 citations92
US6458490B1Oct 1, 2002
Nonaqueous electrolyte battery
SONY CORP19 citations91
US5639575AJun 17, 1997
Non-aqueous liquid electrolyte secondary battery
SONY CORP20 citations90
US5246796ASep 21, 1993
Nonaqueous-electrolyte secondary cell
SONY CORP49 citations90
US7867649B2Jan 11, 2011
Non-aqueous electrolyte secondary cell
SONY CORP9 citations84
US6686094B2Feb 3, 2004
Non-acqueous electrolyte secondary cell
SONY CORP15 citations84
US6623888B1Sep 23, 2003
Non-aqueous electrolyte secondary cell
SONY CORP14 citations84
US6884543B2Apr 26, 2005
Material for positive electrode and secondary battery
SONY CORP15 citations83
US6623892B1Sep 23, 2003
Nonaqueous electrolyte battery
SONY CORP14 citations81
US6534217B2Mar 18, 2003
Positive electrode material and secondary battery using the same
SONY CORP13 citations80
US5643426AJul 1, 1997
Anode material and method of manufacturing the same
SONY CORP8 citations74
US6716557B2Apr 6, 2004
Anode material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery using such anode material
SONY CORP6 citations73
US5932373AAug 3, 1999
Non-aqueous electrolyte secondary cell using carbonaceous material for negative electrode
SONY CORP12 citations73
US5667914ASep 16, 1997
Process for preparing carbonaceous material for negative electrode of cell and non-aqueous electrolyte secondary cell using same
SONY CORP10 citations73
US6764767B2Jul 20, 2004
Graphite powders suited for negative electrode material of lithium ion secondary battery
SONY CORP12 citations72
US6440609B1Aug 27, 2002
Non-aqueous electrolytic cell comprising low weight percent of carbon fibers
SONY CORP4 citations63
US7648800B1Jan 19, 2010
Positive electrode active material for a non-aqueous electrode cell and non-aqueous electrode cell using the same
SONY CORP4 citations62
US7498101B2Mar 3, 2009
Non-aqueous electrolyte secondary battery having a negative electrode containing carbon fibers and carbon flakes
SONY CORP2 citations62
US7172837B2Feb 6, 2007
Nonaqueous electrolyte secondary battery having a negative electrode containing carbon fibers and carbon flakes
SONY CORP3 citations62
US7070883B2Jul 4, 2006
Non-aqueous electrolyte secondary battery
SONY CORP2 citations62
US7045251B2May 16, 2006
Material for positive electrode and secondary battery
SONY CORP2 citations62
US7214447B2May 8, 2007
Graphite powders suited for negative electrode material of lithium ion secondary battery
SONY CORP2 citations61
US7659033B2Feb 9, 2010
Graphite powders suited for negative electrode material of lithium ion secondary battery
SONY CORP0 citations51