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SIGMA KK

Overview
  • Total Patents
    197
  • GoodIP Patent Rank
    191,084
  • Filing trend
    ⇧ 100.0%
About

SIGMA KK has a total of 197 patent applications. It increased the IP activity by 100.0%. Its first patent ever was published in 1975. It filed its patents most often in Japan, Australia and EPO (European Patent Office). Its main competitors in its focus markets optics, control and machines are RICOH OPTICAL IND CO, TELEPHONE CABLES LTD and NANO PREC CORP.

Patent filings in countries

World map showing SIGMA KKs patent filings in countries

Patent filings per year

Chart showing SIGMA KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nakagawa Jihei 21
#2 Tanaka Masahiro 19
#3 Orimoto Hideki 14
#4 Yamaki Michihiro 11
#5 Okuda Yasutaka 10
#6 Kanai Shinji 10
#7 Koyama Takehisa 10
#8 Nakamura Kikuo 9
#9 Hamano Hideo 9
#10 Tsujimoto Atsuyuki 8

Latest patents

Publication Filing date Title
JP2020060466A Inner surface roughness inspection device
JP2019188111A Theft prevention tool for film package, and film package
JP2019048020A Theft prevention device for blister package
JP2017170567A Workpiece recognition method and random picking method
JP2017101939A Inner surface inspection device
JP2017101938A Inner surface inspection device
JP2015057556A Bush for embedding
JP2013248773A Mold clamping device, horizontal rotary injection molding machine, and method for mounting movable side mold on index table
JP2013230337A Anti-theft device for golf club
JP2013220343A Anti-theft tool for reel fishing rod
JP2013123639A Theft prevention tool for guitar
JP2012184963A Surface inspecting device
JP2012063223A Surface inspection apparatus
JP2011258171A Anti-theft tag
JP2011030554A Sliding type tag for preventing shoplifting of articles
JP2010194286A Theft prevention implement for blister package article
JP2010157122A Sample merchandise questionnaire management system
JP2010145253A Method for imaging cylindrical surface and obtaining rectangular plane image
JP2010125070A Lumbago relief waist pillow
JP2010085332A Surface inspection apparatus