Learn more

SEIBERCO INC

Overview
  • Total Patents
    21
About

SEIBERCO INC has a total of 21 patent applications. Its first patent ever was published in 1986. It filed its patents most often in United States, Canada and Japan. Its main competitors in its focus markets electrical machinery and energy, control and measurement are WINTHER MARTIN P, NRG TECH LTD and QUANTEN TECH INC.

Patent filings in countries

World map showing SEIBERCO INCs patent filings in countries

Patent filings per year

Chart showing SEIBERCO INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Vu Hung D 11
#2 Horber Ralph W 8
#3 Rarufu Daburiyu Hoobaa 2
#4 Someya Masayuki 2
#5 Leenhouts Albert C 1
#6 O'Neill Francis Brian 1
#7 Katz Stanley Maurice 1

Latest patents

Publication Filing date Title
US6844647B2 Permanent magnet motor having flux density characteristics that are internally variable
US6555987B2 Step motor control for accommodating friction load variation
US6548977B2 Motor tracking control system
US6384563B1 Method and apparatus for load torque detection and drive current optimization
US6150788A Load torque detection and drive current optimization determination met
US5844393A Stepper drive control using variable step angle
US5770829A General purpose position control system having recursive profile generator
US5838122A Motor initialization method and apparatus
US5329195A Sensor motor
US4687961A Polyphase DC motor with sensor poles