Patents by Inventor Taketo SHINCHI

Taketo SHINCHI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Bismuth oxide-based addictive for laser marking
    Patent number: 9637651
    Abstract: The present invention is directed to a bismuth oxide-based additive for laser marking containing oxygen-deficient bismuth oxide represented by the general formula: Bi2O(3-x) (provided that x is 0.01 or more and 0.3 or less and x represents the amount of oxygen deficiency calculated according to the formula: x=3?O1s/Bi4f×2 from the ratio (O1s/Bi4f) of the peak area attributed to the 1s electrons of oxygen bonded to bismuth to the peak area attributed to the 4f electrons of bismuth obtained by X-ray photoelectron spectrometry), which enables marking with excellent blackness and contrast without causing undesirable coloration of a resin composition regardless of the type or shape of a resin to be used.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: May 2, 2017
    Assignee: TOKAN MATERIAL TECHNOLOGY CO., LTD.
    Inventors: Tatsuo Matoda, Shigeru Suzuki, Taketo Shinchi, Akira Ishiko
  • BISMUTH OXIDE-BASED ADDICTIVE FOR LASER MARKING
    Publication number: 20160168399
    Abstract: The present invention is directed to a bismuth oxide-based additive for laser marking containing oxygen-deficient bismuth oxide represented by the general formula: Bi2O(3-x) (provided that x is 0.01 or more and 0.3 or less and x represents the amount of oxygen deficiency calculated according to the formula: x=3?O1s/Bi4f×2 from the ratio (O1s/Bi4f) of the peak area attributed to the 1s electrons of oxygen bonded to bismuth to the peak area attributed to the 4f electrons of bismuth obtained by X-ray photoelectron spectrometry), which enables marking with excellent blackness and contrast without causing undesirable coloration of a resin composition regardless of the type or shape of a resin to be used.
    Type: Application
    Filed: April 17, 2014
    Publication date: June 16, 2016
    Applicant: TOKAN MATERIAL TECHNOLOGY CO., LTD.
    Inventors: Tatsuo MATODA, Shigeru SUZUKI, Taketo SHINCHI, Akira ISHIKO