Inventor
YAMAGATA TAKEO
JP9 patents
⚠️ This page may combine multiple inventors who share the name “YAMAGATA TAKEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ALPS ELECTRIC CO LTD
4 patentsUS6259046B1Jul 10, 2001
Sheet with movable contacts and sheet switch
ALPS ELECTRIC CO LTD62 citations94
US6548779B2Apr 15, 2003
Sheet having moving contacts and sheet switch
ALPS ELECTRIC CO LTD24 citations91
US6271491B1Aug 7, 2001
Push button switch including dome-shaped movable contact having reverse function
ALPS ELECTRIC CO LTD32 citations91
US6563068B2May 13, 2003
Dome-shaped contact plate giving crispy feeling of click and sheet with contact plate
ALPS ELECTRIC CO LTD25 citations86
HITACHI LTD
4 patentsUS6083645AJul 4, 2000
Secondary battery using system and material for negative electrode of secondary battery
HITACHI LTD24 citations92
US4407904AOct 4, 1983
Fuel cell
HITACHI LTD55 citations89
US4220518ASep 2, 1980
Method for preventing coking in fluidized bed reactor for cracking heavy hydrocarbon oil
HITACHI LTD18 citations81
US4294803AOct 13, 1981
Apparatus for preventing coking in fluidized bed reactor for cracking heavy hydrocarbon oil
HITACHI LTD5 citations61