Patents by Inventor Hiroyuki Kuroyama

Hiroyuki Kuroyama 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).

  • Patent number: 11198264
    Abstract: A dried vitrigel membrane is produced by a method including the following steps of (1) a step of keeping a hydrogel in the inside of a wall surface mold with a shape the same as the desired shape disposed on a substrate, and discharging a part of free water within the hydrogel from a gap between the substrate and the wall surface mold; (2) a step of removing the wall surface mold from the top of the substrate; (3) a step of drying the hydrogel to remove the residual free water, thereby fabricating a vitrified dried hydrogel; (4) a step of rehydrating the dried hydrogel to fabricate a vitrigel membrane; and (5) a step of redrying the vitrigel membrane to remove free water, thereby fabricating a vitrified dried vitrigel membrane.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: December 14, 2021
    Assignees: KANTO KAGAKU KABUSHIKI KAISHA
    Inventors: Toshiaki Takezawa, Ayumi Oshikata, Hiroyuki Kuroyama, Tomoya Sawaguchi, Hiroyuki Yamaguchi
  • Publication number: 20140319728
    Abstract: A dried vitrigel membrane is produced by a method including the following steps of (1) a step of keeping a hydrogel in the inside of a wall surface mold with a shape the same as the desired shape disposed on a substrate, and discharging a part of free water within the hydrogel from a gap between the substrate and the wall surface mold; (2) a step of removing the wall surface mold from the top of the substrate; (3) a step of drying the hydrogel to remove the residual free water, thereby fabricating a vitrified dried hydrogel; (4) a step of rehydrating the dried hydrogel to fabricate a vitrigel membrane; and (5) a step of redrying the vitrigel membrane to remove free water, thereby fabricating a vitrified dried vitrigel membrane.
    Type: Application
    Filed: July 9, 2014
    Publication date: October 30, 2014
    Inventors: Toshiaki TAKEZAWA, Ayumi Oshikata, Hiroyuki Kuroyama, Tomoya Sawaguchi, Hiroyuki Yamaguchi
  • Publication number: 20130280807
    Abstract: A single cell-culture chamber is provided that includes a dried vitrigel membrane covering and secured to one open end surface of a tubular frame. Also provided is a double cell-culture chamber that includes two tubular frames of substantially the same planar cross-sectional shape adhesively secured to each other with a dried vitrigel membrane interposed between the opposing open end surfaces of the tubular frames so as to form a first chamber and a second chamber via the dried vitrigel membrane.
    Type: Application
    Filed: November 10, 2011
    Publication date: October 24, 2013
    Inventors: Toshiaki Takezawa, Hiroyuki Yamaguchi, Hiroyuki Kuroyama, Tomoya Sawaguchi
  • Publication number: 20130217126
    Abstract: A dried vitrigel membrane is produced by a method including the following steps of (1) a step of keeping a hydrogel in the inside of a wall surface mold with a shape the same as the desired shape disposed on a substrate, and discharging a part of free water within the hydrogel from a gap between the substrate and the wall surface mold; (2) a step of removing the wall surface mold from the top of the substrate; (3) a step of drying the hydrogel to remove the residual free water, thereby fabricating a vitrified dried hydrogel; (4) a step of rehydrating the dried hydrogel to fabricate a vitrigel membrane; and (5) a step of redrying the vitrigel membrane to remove free water, thereby fabricating a vitrified dried vitrigel membrane.
    Type: Application
    Filed: August 25, 2011
    Publication date: August 22, 2013
    Inventors: Toshiaki Takezawa, Ayumi Oshikata, Hiroyuki Kuroyama, Tomoya Sawaguchi, Hiroyuki Yamaguchi