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QINHUANGDAO AUDIO VISUAL MACHINERY RES INST

Overview
  • Total Patents
    18
  • GoodIP Patent Rank
    169,092
About

QINHUANGDAO AUDIO VISUAL MACHINERY RES INST has a total of 18 patent applications. Its first patent ever was published in 2008. It filed its patents most often in China. Its main competitors in its focus markets optics and semiconductors are WEBSTER CAPITAL LLC, SPRING RAINBOW OPTICS CO LTD and WAVELENS.

Patent filings in countries

World map showing QINHUANGDAO AUDIO VISUAL MACHINERY RES INSTs patent filings in countries
# Country Total Patents
#1 China 18

Patent filings per year

Chart showing QINHUANGDAO AUDIO VISUAL MACHINERY RES INSTs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Semiconductors

Focus technologies

Top inventors

# Name Total Patents
#1 Yu Guohui 14
#2 Chen Chen 11
#3 Liu Xiaochan 9
#4 Li Weishan 8
#5 Yang Gang 7
#6 Zhang Yu 7
#7 Yang Feng 6
#8 Li Chenyou 6
#9 Song Tao 6
#10 Li Yanxia 4

Latest patents

Publication Filing date Title
CN105304541A Automatic semiconductor wafer positioning device
CN105182511A Eight-group ten-sheet refraction and reflection type ultra-low projection ratio projection lens foundation structure
CN104678273A High-speed double-pin testing device for diode raw wafer
CN104624520A Bare crystalline grain defect detecting equipment
CN104483744A Di-anisotropic fish-eye lens for spherical screen showing/projection system in single machine position
CN104330241A Universal digital projection/or reproduction fish-eye lens detection system
CN104021950A Fine-turning sucking sheet device for single-layer capacitor bare chip separation tester
CN104020547A Dual projection digital dome movie camera
CN104020551A Digital short-focus projection lens by use of only two optical materials
CN103439859A Ring screen showing or projecting system unit based on two anisotropy fish-eye lenses
CN103246047A Large-field angle low-projection ratio digital projector lens
CN102923347A Full-automatic ghee boxing equipment
CN102941933A Full-automatic crisping oil laminating equipment
CN102806206A Testing and adjusting mechanism of separator for glass-passivated diode bare chip particles
CN102681143A Stand-alone stereoscopic dual-channel digital film showing lens structure
CN102540682A Single unit three-dimensional digital film projecting system based on chromatographic fractionating technology
CN101840057A Basic structure consisting of five groups of six fisheye lenses for digital projector
CN101403816A 240 degree field angle ultra-large pore diameter fish-eye lens base structure