Patents by Inventor Hironobu MASUMOTO

Hironobu MASUMOTO 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).

  • Method of manufacturing water-absorbent resin composition
    Patent number: 9878304
    Abstract: The invention provides a method of manufacturing a water-absorbent resin composition containing water-absorbent resin particles and additive particles, by which it is possible to obtain a water-absorbent resin composition that sufficiently exhibits additional functions, such as an anti-blocking property under moisture absorption, of the additive particles while maintaining an excellent water absorption property. A method of manufacturing a water-absorbent resin composition includes a resin particle preparation step and a mixing step. In the mixing step, water-absorbent resin particles which are prepared in the resin particle preparation step are mixed with additive particles in multiple stages by using a plurality of mixing apparatuses to obtain a water-absorbent resin composition.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: January 30, 2018
    Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Masato Kotake, Hironobu Masumoto, Masahiro Kuzukawa
  • METHOD OF MANUFACTURING WATER-ABSORBENT RESIN COMPOSITION
    Publication number: 20160051966
    Abstract: The invention provides a method of manufacturing a water-absorbent resin composition containing water-absorbent resin particles and additive particles, by which it is possible to obtain a water-absorbent resin composition that sufficiently exhibits additional functions, such as an anti-blocking property under moisture absorption, of the additive particles while maintaining an excellent water absorption property. A method of manufacturing a water-absorbent resin composition includes a resin particle preparation step and a mixing step. In the mixing step, water-absorbent resin particles which are prepared in the resin particle preparation step are mixed with additive particles in multiple stages by using a plurality of mixing apparatuses to obtain a water-absorbent resin composition.
    Type: Application
    Filed: January 30, 2014
    Publication date: February 25, 2016
    Inventors: Masato KOTAKE, Hironobu MASUMOTO, Masahiro KUZUKAWA