Inventor
OYAMA SHIGEAKI
JP17 patents
⚠️ This page may combine multiple inventors who share the name “OYAMA SHIGEAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU FANUC LTD
15 patentsUS4406959ASep 27, 1983
Rotary electric motor
FUJITSU FANUC LTD77 citations94
US4217513AAug 12, 1980
Direct current motor
FUJITSU FANUC LTD50 citations92
US4465948AAug 14, 1984
Device for cooling a reversible motor
FUJITSU FANUC LTD33 citations91
US4133230AJan 9, 1979
Machine tool
FUJITSU FANUC LTD40 citations90
US4240000ADec 16, 1980
Rotary electric machine with a heat pipe for cooling
FUJITSU FANUC LTD30 citations89
US4745320AMay 17, 1988
Induction motor
FUJITSU FANUC LTD24 citations80
US4338535AJul 6, 1982
Direct current motor having E-shaped interpoles
FUJITSU FANUC LTD7 citations74
US4181875AJan 1, 1980
Drive circuit for a DC motor
FUJITSU FANUC LTD10 citations74
US4439703AMar 27, 1984
Direct current motor
FUJITSU FANUC LTD14 citations73
US4374337AFeb 15, 1983
Direct current motor having E-shaped interpoles
FUJITSU FANUC LTD13 citations73
US4307312ADec 22, 1981
Direct current motor having E-shaped interpoles
FUJITSU FANUC LTD9 citations73
US4220882ASep 2, 1980
Direct current motor
FUJITSU FANUC LTD13 citations73
US4268781AMay 19, 1981
DC Motor drive system
FUJITSU FANUC LTD19 citations71
US4170276AOct 9, 1979
Motor with selectable speed clutch
FUJITSU FANUC LTD5 citations63
US4050837ASep 27, 1977
Drilling machine with automatic tool changer
FUJITSU FANUC LTD3 citations61