Learn more

RINGSTONE CO LTD

Overview
  • Total Patents
    24
  • GoodIP Patent Rank
    240,209
About

RINGSTONE CO LTD has a total of 24 patent applications. Its first patent ever was published in 1986. It filed its patents most often in Japan, United States and Canada. Its main competitors in its focus markets machines, furniture and games and environmental technology are DARDA HELMUT SPIELWAREN, TECNOGIOCATTOLI SPA and OSTRANDER ROBERT K.

Patent filings in countries

World map showing RINGSTONE CO LTDs patent filings in countries
# Country Total Patents
#1 Japan 20
#2 United States 2
#3 Canada 1
#4 EPO (European Patent Office) 1

Patent filings per year

Chart showing RINGSTONE CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sugimoto Masaaki 17
#2 Ishiwa Takuzo 4
#3 Isawa Takuzo 2
#4 Otani Yoshitaka 1

Latest patents

Publication Filing date Title
JP2018052519A Bag for displaying article with gusset and method for manufacturing the same
JP2015123620A Method and apparatus for manufacturing gazette bag made of synthetic resin
JP2015030231A Manufacturing method and manufacturing device for gazette bag with inner partition
JP2015009383A Method and apparatus for manufacturing gazette bag of synthetic resin
JP2014240122A Method and apparatus for manufacturing gazette bag made of synthetic resin
JP2014177052A Manufacturing method for bottom gazette bag with inner partition
JP2014121831A Manufacturing method of lateral gusset bag with suspension header
JP2014069836A Method for manufacturing gazette bag with brief
JP2012240384A Method of manufacturing double bag with chuck
JP2012158020A Method and device of laminating woven fabric by gravure print film, and bag using the woven fabric
JP2012131134A Double bag with chuck and its manufacturing method
JP2012091444A Double zippered bag and method for producing the same
JP2012056159A Method of manufacturing gusset bag with handle
JP2012020463A Chuck-provided double bag and method of manufacturing the same
JP2011073772A Method for manufacturing gusset bag with flap
JP2010137864A Gusset bag with sealable chuck, and method for manufacturing the same
JP2010023865A Bag used for exhibition and carrying and its manufacturing method
JP2006218165A Balloon holder
JP2002225886A Tote bag
JP2002173817A Method for producing mask for toy and mask for toy