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NAOETSU DENSHI KOGYO KK

Overview
  • Total Patents
    81
About

NAOETSU DENSHI KOGYO KK has a total of 81 patent applications. Its first patent ever was published in 1984. It filed its patents most often in Japan, EPO (European Patent Office) and United States. Its main competitors in its focus markets machines, semiconductors and machine tools are SETETSUKU KK M, SICHUAN YONGXIANG SILICON MAT CO LTD and GU YUTONG.

Patent filings in countries

World map showing NAOETSU DENSHI KOGYO KKs patent filings in countries

Patent filings per year

Chart showing NAOETSU DENSHI KOGYO KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sato Tsutomu 40
#2 Satoh Tsutomu 9
#3 Nishimaki Koichi 9
#4 Yoshimura Yasushi 7
#5 Ibaraki Tadashi 5
#6 Akatsuka Takeshi 5
#7 Miyashita Toshio 5
#8 Endo Shinichi 4
#9 Kasahara Akio 4
#10 Ohshima Hisashi 4

Latest patents

Publication Filing date Title
JPH11100569A Slurry for polishing chemical machine
JPH1110538A Dressing method for inner peripheral blade in semiconductor wafer cutting device
JPH118201A Production of semiconductor wafer
JPH10326753A Manufacture of discrete substrate
JPH10294284A Manufacture of silicon semiconductor substrate
JPH1070099A Method of cleaning sandblasted semiconductor wafer, and semiconductor wafer cleaned by the method
JPH1055988A Manufacturing method of silicon semiconductor wafer for discrete use
JPH1022240A Manufacture of semiconductor wafer
JPH0938857A Wafer holding plate for waxless polishing
JPH08139167A Groove working device for plate end surface of thin thing
EP0709878A1 Method for the preparation of discrete substrate plates of semiconductor silicon wafer
JPH0897164A Method for diffusion in silicon semiconductor wafer and manufacture of discrete substrate
JPH088215A Method for cutting silicon semiconductor wafer
JPH07323387A Mask for laser marking and its production
TW249291B Method for drive-in diffusion of dopant into semiconductor silicon wafer
JPH07307315A Method of cutting silicon semiconductor wafer
JPH07193029A Manufacture of wafer
JPH07124863A Wafer lapping device
JPH0732352A Supplying and collecting method for silicon semiconductor wafer support tanks for wafer carriers used for execution thereof
JPH06349794A Sio2 film-removing method in semiconductor wafer and apparatus therefor