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NIPPON SEIMITSU DENSHI CO LTD

Overview
  • Total Patents
    15
About

NIPPON SEIMITSU DENSHI CO LTD has a total of 15 patent applications. Its first patent ever was published in 2005. It filed its patents most often in Japan, Taiwan and United States. Its main competitors in its focus markets machine tools and semiconductors are TIANJIN HWATSING TECH CO LTD, HANGZHOU ZHONGGUI ELECTRONIC TECH CO LTD and DAITO ELECTRON CO LTD.

Patent filings in countries

World map showing NIPPON SEIMITSU DENSHI CO LTDs patent filings in countries
# Country Total Patents
#1 Japan 6
#2 Taiwan 3
#3 United States 2
#4 WIPO (World Intellectual Property Organization) 2
#5 China 1
#6 Republic of Korea 1

Patent filings per year

Chart showing NIPPON SEIMITSU DENSHI CO LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Machine tools
#2 Semiconductors

Focus technologies

# Technology
#1 Grinding or polishing devices
#2 Semiconductor devices

Top inventors

# Name Total Patents
#1 Ichinoshime Tsutomu 14
#2 Tsutomu Ichinoshime 1

Latest patents

Publication Filing date Title
JP2010045194A Retainer ring for cmp equipment
US2008299882A1 Retainer-ring of cmp (chemical mechanical polishing) machine
JP2009033086A Retainer ring for cmp (chemical mechanical polishing) apparatus
JP2009034745A Retainer ring for cmp apparatus
JP2008023603A Retainer ring of two-layer structure
JP2007158201A Retainer ring of cmp equipment
JP2007158135A Retainer ring for cmp equipment
WO2006114854A1 Retainer ring for cmp device, method of manufacturing the same, and cmp device