Inventor
MURANAKA YASUSHI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “MURANAKA YASUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
17 patentsUS5350643ASep 27, 1994
Solid polymer electrolyte type fuel cell
HITACHI LTD126 citations98
US6638662B2Oct 28, 2003
Lithium secondary battery having oxide particles embedded in particles of carbonaceous material as a negative electrode-active material
HITACHI LTD101 citations97
US6030726AFeb 29, 2000
Lithium secondary battery having negative electrode of carbon material which bears metals
HITACHI LTD109 citations97
US5500292AMar 19, 1996
Polymer electrolyte hydrogen-oxygen fuel cell where the polymer electrolyte has a water repellency gradient and a catalytically active component concentration gradiem across oxygen electrode
HITACHI LTD73 citations96
US6524749B1Feb 25, 2003
Lithium secondary battery, and process for producing the same
HITACHI LTD46 citations95
US6458488B1Oct 1, 2002
Positive electrode activator for lithium secondary battery and lithium secondary battery
HITACHI LTD54 citations94
US5922491AJul 13, 1999
Secondary battery
HITACHI LTD63 citations93
US6268086B1Jul 31, 2001
Non-aqueous secondary battery and a method of manufacturing graphite powder
HITACHI LTD18 citations92
US6083645AJul 4, 2000
Secondary battery using system and material for negative electrode of secondary battery
HITACHI LTD24 citations92
US5531184AJul 2, 1996
Method for producing synthetic diamond thin film, the thin film and device using it
HITACHI LTD15 citations74
US5192393AMar 9, 1993
Method for growing thin film by beam deposition and apparatus for practicing the same
HITACHI LTD7 citations74
US6383467B1May 7, 2002
Non-aqueous secondary battery and a method of manufacturing graphite powder
HITACHI LTD10 citations73
US4456528AJun 26, 1984
Process for removing ash from coal
HITACHI LTD17 citations73
US7273681B2Sep 25, 2007
Non-aqueous secondary battery having negative electrode including graphite powder
HITACHI LTD0 citations52
US7201989B2Apr 10, 2007
Electronic device using fuel cells
HITACHI LTD0 citations52
US6835215B2Dec 28, 2004
Non-aqueous secondary battery and a method of manufacturing graphite powder
HITACHI LTD0 citations52
US7416814B2Aug 26, 2008
Lithium secondary battery, and process for producing the same
HITACHI LTD0 citations51