Learn more

YANTAI ZHENGHAI MAGNETIC MATERIAL CO LTD

Overview
  • Total Patents
    28
  • GoodIP Patent Rank
    177,286
About

YANTAI ZHENGHAI MAGNETIC MATERIAL CO LTD has a total of 28 patent applications. Its first patent ever was published in 2007. It filed its patents most often in China, Japan and EPO (European Patent Office). Its main competitors in its focus markets materials and metallurgy, electrical machinery and energy and surface technology and coating are TECHNOLOGY FOUNDATION STW, FUJIAN CHANGTING GOLDEN DRAGON RARE EARTH CO LTD and XIAMEN TUNGSTEN CO LTD.

Patent filings per year

Chart showing YANTAI ZHENGHAI MAGNETIC MATERIAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yu Yongjiang 14
#2 Li Guangjun 9
#3 Wang Qingkai 9
#4 Sun Xiuyan 8
#5 Li Dongdong 7
#6 Zhao Juntao 7
#7 Wei Rui 6
#8 Peng Buzhuang 6
#9 Li Zhiqiang 5
#10 Du Wei 5

Latest patents

Publication Filing date Title
CN103745823A Preparation method for R-Fe-B-series sintering magnet
CN103680918A Method for preparing high-coercivity magnet
CN103646772A Preparing method of R-Fe-B sintered magnet
CN103646773A Manufacturing method of R-Fe-B sintered magnet
CN103258633A Method for preparing R-Fe-B series sintered magnets
CN103258634A Method for preparing high-performance R-Fe-B system sintering magnetic body
CN102969110A Device and method for improving magnetic coercivity of NdFeB (neodymium iron boron)
CN102930975A Manufacturing method of R-Fe-B series sintered magnets
CN102938282A R-Fe-B series permanent magnet and production method thereof
CN103000324A Sintered rare earth permanent magnetic material and preparation method thereof
CN102789872A Neodymium iron boron magnet and preparation method of neodymium iron boron magnet
CN102568809A Method for preparing corrosion-resistant high-performance sintered neodymium iron boron magnets
CN102534358A Manufacturing method of high-coercivity R-Fe-B sintered permanent magnet material
CN102108511A Electroplating and chemical plating composite protecting process for NdFeB permanent magnet and NdFeB permanent magnet with composite protective layer
CN102108510A Vacuum aluminizing/cathode electrophoresis composite protective technique for NdFeB magnet and NdFeB magnet with composite protective layer
CN101859639A R-Fe-B series magnet of gradient resistance and production method thereof
CN101847487A Gradient coercive-force neodymium-ferrum-boron magnet and production method thereof
CN101736304A Vacuum aluminizing method of surface of neodymium-iron-boron permanent magnet
CN101236815A A high-temperature resisting R-Fe-B agglomeration permanent magnetic material and its making method