Inventor
DOHI TAKASHI
JP19 patents
Patents
19 patentsUS4914371AApr 3, 1990
Apparatus for controlling AC servo motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations73
US4691653ASep 8, 1987
Sewing machine control apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations73
US4692676ASep 8, 1987
Sewing machine driving apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations73
US4578624AMar 25, 1986
Speed setting arrangement for sewing machines
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations73
US4517909AMay 21, 1985
Sewing machine having a digital command circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations73
US4499449AFeb 12, 1985
Speed setting device for a sewing machine
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations73
US4473020ASep 25, 1984
Sewing machine having a soft-starting circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations73
US4463698AAug 7, 1984
Needle position detector
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations73
US4437061AMar 13, 1984
Speed detector for sewing machines
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations73
US4429773AFeb 7, 1984
Electromagnetic clutch and brake
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations73
US4386301AMay 31, 1983
Digital speed control system for sewing machines
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations73
US4682095AJul 21, 1987
Circuit arrangement for controlling starting current of a motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations71
US4013933AMar 22, 1977
Needle position detector for industrial type sewing machines
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations68
US4732099AMar 22, 1988
Motor controller for a sewing machine
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations62
US4710688ADec 1, 1987
Variable speed control with selectively enabled counter circuits
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US4676180AJun 30, 1987
Sewing machine with reference speed correction by dimensional ratio between motor- and armshaft-pulleys
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations62
US4516061AMay 7, 1985
Sewing machine having a memory for generating a speed signal in response to operating conditions
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US4403563ASep 13, 1983
Electric sewing machine driving apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations62
US4377778AMar 22, 1983
Sewing machine speed control system having quick response characteristic
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62