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NANTONG TONGFANG SEMICONDUCTOR CO LTD

Overview
  • Total Patents
    37
  • GoodIP Patent Rank
    62,245
  • Filing trend
    ⇩ 100.0%
About

NANTONG TONGFANG SEMICONDUCTOR CO LTD has a total of 37 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2011. It filed its patents most often in China. Its main competitors in its focus markets semiconductors, surface technology and coating and micro-structure and nano-technology are POWDEC KK, IKUTA TETSUYA and HUANG CHIH SHU.

Patent filings in countries

World map showing NANTONG TONGFANG SEMICONDUCTOR CO LTDs patent filings in countries
# Country Total Patents
#1 China 37

Patent filings per year

Chart showing NANTONG TONGFANG SEMICONDUCTOR CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zeng Qiyao 18
#2 Li Pengfei 18
#3 Zheng Jianqin 16
#4 Tian Yu 16
#5 Lin Zhengzhi 14
#6 Wu Donghai 14
#7 Lai Zhihao 9
#8 Wu Zhenlong 7
#9 Li Zhixiang 7
#10 Tong Jingwen 6

Latest patents

Publication Filing date Title
CN109390444A A kind of light emitting diode construction can increase LED chip light extraction
CN107689406A A kind of deep ultraviolet LED epitaxial structure using composite electron barrier layer
CN106025025A Epitaxial growth method capable of improving deep-ultraviolet LED luminous performance
CN105543969A Growth method for improving quality of AlN thin film crystal
CN106549086A A kind of LED epitaxial structure with stress compensation effect barrier layer
CN106486573A A kind of LED epitaxial structure of high hole injection efficiency
CN106469769A A kind of micro-nano graph Sapphire Substrate and preparation method thereof
CN106711303A Blue light LED epitaxial structure grown on GaAs substrate
CN106328785A LED epitaxial structure capable of improving multi-quantum well combination efficiency
CN106328783A Blue-light LED epitaxial structure capable of improving anti-static electricity capability and luminous efficiency
CN106328784A LED epitaxial structure with light-emitting layer multi-quantum-well transitional layer
CN106328782A LED epitaxial structure with composite buffer layer
CN106299049A A kind of blue-ray LED epitaxial structure improving antistatic effect
CN106299061A A kind of blue-ray LED epitaxial structure of belt current extension layer
CN106299057A A kind of LED epitaxial structure improving brightness band 3D layer
CN106299056A A kind of LED epitaxial structure of high combined efficiency
CN106299048A A kind of low-dislocation-density and the LED epitaxial structure of residual stress
CN106299059A A kind of LED epitaxial structure improving internal quantum efficiency having electronic barrier layer
CN106299055A A kind of GaN base LED chip of high-efficiency bight-dipping and preparation method thereof
CN106299067A A kind of LED epitaxial structure of high-antistatic ability