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TONGFANG OPTO ELECTRONIC CO LTD

Overview
  • Total Patents
    34
About

TONGFANG OPTO ELECTRONIC CO LTD has a total of 34 patent applications. Its first patent ever was published in 2010. It filed its patents most often in China. Its main competitors in its focus markets semiconductors are SUMITOMO BAKELITE SINGAPORE PT, SHENGKAI SCIENCE & TECH CO LTD and CHIP TECHNOLOGY CO LTD.

Patent filings in countries

World map showing TONGFANG OPTO ELECTRONIC CO LTDs patent filings in countries
# Country Total Patents
#1 China 34

Patent filings per year

Chart showing TONGFANG OPTO ELECTRONIC CO LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Semiconductors

Focus technologies

# Technology
#1 Semiconductor devices

Top inventors

# Name Total Patents
#1 Donghai Wu 7
#2 Wang Libin 6
#3 Guo Debo 6
#4 Libin Wang 4
#5 Xueliang Zhang 4
#6 Zhixiang Li 4
#7 Liu Gang 3
#8 Liang Xinwei 3
#9 Zhang Huadong 3
#10 Ma Liang 3

Latest patents

Publication Filing date Title
CN103943749A Transparent conductive film for light emitting diode
CN103943744A Chip processing method capable of improving LED luminous efficiency
CN103943730A Peeling method suitable for light emitting diode
CN103943731A Growth method capable of improving emission wavelength uniformity of nitride LED epitaxial wafer
CN103855262A Nitride LED epitaxy structure suitable for heavy current driving
CN103855256A Method for roughening light emitting diode
CN103824903A Substrate processing method for improving emission compensation temperature measurement accuracy or consistency
CN103811596A GaN (gallium nitride)-based LED (light emitting diode) preparing method
CN103811405A Preparing method of high-voltage LED (light-emitting diode)
CN103579447A Light-emitting diode of inversion structure and manufacturing method thereof
CN103137793A Vertical-structure LED (light emitting diode) production method utilizing multi-layer dielectric film reflection
CN102728562A Testing and sorting device for vertical light emitting diode
CN102738314A Device for light emitting diode substrate separation
CN102709406A Manufacturing method for copper substrate light emitting diode (LED) with cleavability
CN102709430A Light emitting diode (LED) with increased luminous efficiency and manufacturing method thereof
CN102709405A Manufacturing method for light emitting diode (LED) metal base board
CN102709427A Manufacturing method of vertical-structured light emitting diode (LED)
CN102637783A White-light emitting diode with vertical structure and manufacturing method thereof
CN102637782A Method for manufacturing light-emitting diode with improved light extraction efficiency
CN102630511A Adjustable full spectrum LED (light-emitting diode) light source device for plant growth