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DOI TOSHIRO

Overview
  • Total Patents
    17
About

DOI TOSHIRO has a total of 17 patent applications. Its first patent ever was published in 1991. It filed its patents most often in Japan, EPO (European Patent Office) and Malaysia. Its main competitors in its focus markets machine tools, semiconductors and basic materials chemistry are DAITO ELECTRON CO LTD, HANGZHOU ZHONGGUI ELECTRONIC TECH CO LTD and OKAMOTO MACHINE TOOL WORKS.

Patent filings in countries

World map showing DOI TOSHIROs patent filings in countries
# Country Total Patents
#1 Japan 14
#2 EPO (European Patent Office) 1
#3 Malaysia 1
#4 United States 1

Patent filings per year

Chart showing DOI TOSHIROs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Doi Toshiro 17
#2 Denardis Darren 3
#3 Nakagawa Takeo 3
#4 Inada Yasuo 3
#5 Nakamura Kazuhiko 3
#6 Kasai Toshio 3
#7 Ichikawa Koichiro 3
#8 Nozaki Ryosuke 2
#9 Philipossian Ara 2
#10 Seshimo Kiyoshi 1

Latest patents

Publication Filing date Title
JP2006165104A Method and device for chemical and mechanical polishing and method and device for reproducing slurry at the time of performing chemical and mechanical polishing work
JP2005169613A Work polishing device and work polishing method
JP2005243673A Chemical mechanical polishing method and polishing body
JP2005142516A Slurry composition and method for chemical mechanical polishing
JP2005034940A Polishing pad and its separation method
JP2003225859A Polishing device and polishing method
JP2003163190A Polishing pad for cmp polishing and cmp polishing method
JP2001230227A Planarization polishing method and equipment for wafer with device
JP2001138212A Precise polishing apparatus
JP2001030161A Carrier for polishing device
JPH11104947A Dressing device for polishing pad
JPH06252142A Formation of wiring for semiconductor device
JPH0574749A Method and apparatus for planarization polishing of wafer with device