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MEIDENSHA ELECTRIC MFG CO LTD

Overview
  • Total Patents
    19,299
  • GoodIP Patent Rank
    1,005
  • Filing trend
    ⇩ 9.0%
About

MEIDENSHA ELECTRIC MFG CO LTD has a total of 19,299 patent applications. It decreased the IP activity by 9.0%. Its first patent ever was published in 1959. It filed its patents most often in Japan, WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets environmental technology, electrical machinery and energy and measurement are INST ELECTRICAL ENG CAS, AICHI ELECTRIC CO LTD and CENTRAL RES INST ELECT.

Patent filings per year

Chart showing MEIDENSHA ELECTRIC MFG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kashiwagi Yoshiyuki 633
#2 Yoshioka Nobuyuki 427
#3 Fukai Toshimasa 232
#4 Niwakawa Makoto 211
#5 Kitakizaki Kaoru 203
#6 Nomura Masakatsu 201
#7 Shibuya Tadashi 197
#8 Noda Taiji 194
#9 Yamamoto Yasuhiro 181
#10 Fujiwara Nobuyuki 143

Latest patents

Publication Filing date Title
JP2021007299A Output side connection structure of single-phase inverter
JP2020202747A Cross flow current suppression controller
JP2021002999A Power conversion device and electric railway system
JP2020201290A Water level gauge
WO2021059677A1 Rotating machine
WO2021053937A1 Rotor and rotating machine
WO2021044714A1 Terminal block
WO2021059646A1 Stator and rotating machine
WO2021079557A1 Coolant passage way structure for motor
WO2021053904A1 Oxide film forming device
WO2021053901A1 End plate structure of rotating machine
WO2021044681A1 Serial multiplex inverter control device
WO2021038976A1 Surge arrester
WO2021053876A1 Emitter support structure and field emission device
WO2021038957A1 Reforming device and reforming method for porous material
WO2021038958A1 Atomic layer deposition device and atomic layer deposition method
JP2020114179A Stator of rotary electric machine
WO2021038956A1 Rotor
WO2021019843A1 Winding structure for rotary machine
WO2021014690A1 Power converter control system using fixed pulse pattern, and control method