Learn more

SIGMAELTEC CO LTD

Overview
  • Total Patents
    24
  • GoodIP Patent Rank
    119,079
About

SIGMAELTEC CO LTD has a total of 24 patent applications. Its first patent ever was published in 2011. It filed its patents most often in Republic of Korea and China. Its main competitors in its focus markets audio-visual technology, measurement and machine tools are EARGO INC, AURIC HOERSYSTEME GMBH & CO KG and HENNEL GMBH & CO KG HANS.

Patent filings in countries

World map showing SIGMAELTEC CO LTDs patent filings in countries
# Country Total Patents
#1 Republic of Korea 14
#2 China 10

Patent filings per year

Chart showing SIGMAELTEC CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Baek Jeonghun 8
#2 Baek Jeong Hun 6
#3 Baek Jeong Hoon 4
#4 Bak Jeong Hoon 3
#5 Bak Joung Hoon 2
#6 Baek Jeonghoon 1

Latest patents

Publication Filing date Title
CN108156570A The loud speaker cone paper resonant frequency check device that practicability makes moderate progress
CN108156571A Light and small shape loud speaker cone paper resonant frequency check device
CN108124231A Loudspeaker enclosure defect inspection method
CN108123525A Magnetizer charging voltage control method and its control device
KR101752655B1 Defect detection method of speaker enclosure
CN107920309A The output method of stereo set inspection pink noise
CN107846652A Diffuser resonant frequency determines devices and methods therefor
KR101757362B1 Pink noise output method for inspected of acoustic apparatus
KR101581020B1 Jig for measuring acoustical characteristics of receiver
CN105704631A Earphone online inspection method
KR101569472B1 Ear-set inline inspecting method
KR101518867B1 Jig for ear-set testing apparatus and ear-set testing apparatus
CN104640050A Horn resonant frequency measuring method and measuring device thereof
KR101409643B1 Test system for speaker
KR101404876B1 Speaker test box
KR20140126505A Speaker test box with hood
KR101369932B1 Temperature measuring device of a voice coil in speaker
KR101386366B1 Method for resonance frequency measuring of speaker and apparatus using the same
KR101327214B1 Test method for abnormal of speaker and test device using the same
KR20130000118A Speaker test box having vibration damping member