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NAKAGAWA CORP

Overview
  • Total Patents
    15
About

NAKAGAWA CORP has a total of 15 patent applications. Its first patent ever was published in 1979. It filed its patents most often in United States, Australia and Germany. Its main competitors in its focus markets consumer goods, surface technology and coating and machine tools are EBERLE JOSEF GMBH & CO KG, FA FR SPEIDEL and KIMURA TOSHIHIKO.

Patent filings per year

Chart showing NAKAGAWA CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nakagawa Shigesaburo 5
#2 Nakagawa Shigeki 4
#3 Nakagawa Shigesabburo 1
#4 Shigesaburo Nakagawa 1
#5 Nakagawa S 1
#6 Shigeki Nakagawa 1

Latest patents

Publication Filing date Title
WO9925215A1 Rotation preventing necklace
GB2060353A Jewellery chains
DE2939496A1 Spring ring clasp for necklaces, bracelets etc. - where spring is first coated with lacquer, so it does not bond to clasp during electroplating
DE2939495A1 Plating barrel for producing decorative chains - has rotary cathode bars above it, and non conductive bars inside it
US4348861A Jewelry chains by electro-forming
IT7926065D0 Plating barrel for producing decorative chains
AU6122579A Jewellery chains by electro-forming
AU530868B2 Jewellery chains by electro-forming
CA1126693A Jewelry chains by electro-forming