Patents by Inventor Yoshiyuki Shiomi

Yoshiyuki Shiomi 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: 9863944
    Abstract: Provided is an immunochromatographic diagnostic kit which renders prompt diagnosis possible, has high analysis sensitivity, and gives test results with excellent reproducibility. The immunochromatographic diagnostic kit includes: a conjugate pad that contains a conjugate containing chromogenic particles which have an average particle diameter of 100-1,000 nm and attain a color intensity of 1.0-10.0, 10-90 wt % of the particles being derived from cellulose and 90-10 wt % of the particles being derived from a colorant; and a sample pad for an in vitro diagnostic reagent, the sample pad being constituted of nonwoven fabric that has a basis weight of 10-150 g/m2 and a thickness of 0.07-1.00 mm and comprises regenerated cellulosic fibers.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: January 9, 2018
    Assignee: ASAHI KASEI FIBERS CORPORATION
    Inventors: Atsushi Horii, Yoshiyuki Shiomi, Takayuki Ogawa, Takeshi Matsuse, Maki Sugino
  • Patent number: 9562908
    Abstract: Provided are an immunochromatography kit that is highly sensitive and capable of multicoloration, and organic colored microparticles that are ideal as an element of the immunochromatography kit. Organic colored microparticles having an average grain size between 10 and 1,000 nm and a color intensity between 1.0 and 5.0 are prepared using cellulose as the starting material. When the organic colored microparticles are used as a label in an immunochromatography kit, the immunochromatography kit is of a high sensitivity than conventional technology. The immunochromatography kit is also capable of multicoloration and is useful for rapid diagnosis.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: February 7, 2017
    Assignee: ASAHI KASEI FIBERS CORPORATION
    Inventors: Satoru Yoshida, Yoshiyuki Shiomi, Toshihiko Matsui, Masanori Doi, Nobuyuki Mimura, Takeshi Matsuse
  • Patent number: 9341622
    Abstract: An object of the present invention is to provide a hydrophilic cellulose derivative fine particle having a small particle size, a dispersion liquid thereof and a dispersion body thereof; and provide a diagnostic reagent composed of the hydrophilic particle, which is excellent in storage stability and does not require excess components, such as an emulsifier or surfactant. The cellulose derivative fine particle of the present invention is a cellulose derivative fine particle comprising a cellulose derivative with a part of hydroxyl groups of cellulose being substituted with a substituent, wherein the average particle diameter is from 9 to 1,000 nm; and the diagnostic reagent of the present invention is a diagnostic reagent obtained by loading a substance differentially interacting with a test object substance on the above-described cellulose derivative fine particle.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: May 17, 2016
    Assignee: ASAHI KASEI FIBERS CORPORATION
    Inventors: Yoshiyuki Shiomi, Toshihiko Matsui, Masanori Doi
  • Publication number: 20160123974
    Abstract: Provided is an immunochromatographic diagnostic kit which renders prompt diagnosis possible, has high analysis sensitivity, and gives test results with excellent reproducibility. The immunochromatographic diagnostic kit includes: a conjugate pad that contains a conjugate containing chromogenic particles which have an average particle diameter of 100-1,000 nm and attain a color intensity of 1.0-10.0, 10-90 wt % of the particles being derived from cellulose and 90-10 wt % of the particles being derived from a colorant; and a sample pad for an in vitro diagnostic reagent, the sample pad being constituted of nonwoven fabric that has a basis weight of 10-150 g/m2 and a thickness of 0.07-1.00 mm and comprises regenerated cellulosic fibers.
    Type: Application
    Filed: June 9, 2014
    Publication date: May 5, 2016
    Inventors: Atsushi HORII, Yoshiyuki SHIOMI, Takayuki OGAWA, Takeshi MATSUSE, Maki SUGINO
  • Publication number: 20150293082
    Abstract: An object of the present invention is to provide a hydrophilic cellulose derivative fine particle having a small particle size, a dispersion liquid thereof and a dispersion body thereof; and provide a diagnostic reagent composed of the hydrophilic particle, which is excellent in storage stability and does not require excess components, such as an emulsifier or surfactant. The cellulose derivative fine particle of the present invention is a cellulose derivative fine particle comprising a cellulose derivative with a part of hydroxyl groups of cellulose being substituted with a substituent, wherein the average particle diameter is from 9 to 1,000 nm; and the diagnostic reagent of the present invention is a diagnostic reagent obtained by loading a substance differentially interacting with a test object substance on the above-described cellulose derivative fine particle.
    Type: Application
    Filed: June 25, 2015
    Publication date: October 15, 2015
    Applicant: Asahi Kasei Fibers Corporation
    Inventors: Yoshiyuki SHIOMI, Toshihiko Matsui, Masanori Doi
  • Patent number: 9096690
    Abstract: An object of the present invention is to provide a hydrophilic cellulose derivative fine particle having a small particle size, a dispersion liquid thereof and a dispersion body thereof; and provide a diagnostic reagent composed of the hydrophilic particle, which is excellent in storage stability and does not require excess components, such as an emulsifier or surfactant. The cellulose derivative fine particle of the present invention is a cellulose derivative fine particle comprising a cellulose derivative with a part of hydroxyl groups of cellulose being substituted with a substituent, wherein the average particle diameter is from 9 to 1,000 nm; and the diagnostic reagent of the present invention is a diagnostic reagent obtained by loading a substance differentially interacting with a test object substance on the above-described cellulose derivative fine particle.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: August 4, 2015
    Assignee: ASAHI KASEI FIBERS CORPORATION
    Inventors: Yoshiyuki Shiomi, Toshihiko Matsui, Masanori Doi
  • Publication number: 20150111307
    Abstract: Provided are an immunochromatography kit that is highly sensitive and capable of multicoloration, and organic colored microparticles that are ideal as an element of the immunochromatography kit. Organic colored microparticles having an average grain size between 10 and 1,000 nm and a color intensity between 1.0 and 5.0 are prepared using cellulose as the starting material. When the organic colored microparticles are used as a label in an immunochromatography kit, the immunochromatography kit is of a high sensitivity than conventional technology. The immunochromatography kit is also capable of multicoloration and is useful for rapid diagnosis.
    Type: Application
    Filed: August 14, 2014
    Publication date: April 23, 2015
    Inventors: Satoru YOSHIDA, Yoshiyuki SHIOMI, Toshihiko MATSUI, Masanori DOI, Nobuyuki MIMURA, Takeshi MATSUSE
  • Patent number: 8629187
    Abstract: An object of the present invention is to provide cellulose fine particles having a small particle diameter and a high average polymerization degree, and a liquid dispersion or a solid dispersion thereof. The inventive cellulose fine particles have an average particle diameter of 9 to 400 nm and an average polymerization degree (DP) of cellulose of 150 to 3,000.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: January 14, 2014
    Assignee: Asahi Kasei Fibers Corporation
    Inventors: Yoshiyuki Shiomi, Nobuyuki Mimura
  • Publication number: 20110020954
    Abstract: An object of the present invention is to provide a hydrophilic cellulose derivative fine particle having a small particle size, a dispersion liquid thereof and a dispersion body thereof; and provide a diagnostic reagent composed of the hydrophilic particle, which is excellent in storage stability and does not require excess components, such as an emulsifier or surfactant. The cellulose derivative fine particle of the present invention is a cellulose derivative fine particle comprising a cellulose derivative with a part of hydroxyl groups of cellulose being substituted with a substituent, wherein the average particle diameter is from 9 to 1,000 nm; and the diagnostic reagent of the present invention is a diagnostic reagent obtained by loading a substance differentially interacting with a test object substance on the above-described cellulose derivative fine particle.
    Type: Application
    Filed: March 30, 2009
    Publication date: January 27, 2011
    Inventors: Yoshiyuki Shiomi, Toshihiko Matsui, Masanori Doi
  • Publication number: 20100087552
    Abstract: An object of the present invention is to provide cellulose fine particles having a small particle diameter and a high average polymerization degree, and a liquid dispersion or a solid dispersion thereof. The inventive cellulose fine particles have an average particle diameter of 9 to 400 nm and an average polymerization degree (DP) of cellulose of 150 to 3,000.
    Type: Application
    Filed: January 11, 2008
    Publication date: April 8, 2010
    Inventors: Yoshiyuki Shiomi, Nobuyuki Mimura