Patents by Inventor Yoko Matsumoto

Yoko Matsumoto 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).

  • Publication number: 20190223397
    Abstract: The present invention provides a method for culturing photosynthetic microalgae with which xanthophyll can be obtained more efficiently than before.
    Type: Application
    Filed: August 17, 2017
    Publication date: July 25, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Yoko MATSUMOTO, Masaharu ISHIKURA, Hiroshi SUZUKI
  • Publication number: 20190194598
    Abstract: The present invention provides a method for culturing photosynthetic microalgae with which xanthophyll can be obtained more efficiently than before. The culture method of the present invention comprises a step of performing light irradiation of encysted photosynthetic microalgae containing xanthophyll in an amount of 3 to 9% by mass in terms of a dry mass. Preferably, in the step of performing light irradiation, the xanthophyll content in photosynthetic microalgae is kept at 2% by mass or more in terms of a dry mass. Preferably, the step of performing light irradiation includes step (A) of increasing the number of cells in which light irradiation (a) is performed; and step (B) of increasing the xanthophyll content in photosynthetic microalgae in which light irradiation (b) of the photosynthetic microalgae subjected to the step (A) of increasing the number of cells is performed.
    Type: Application
    Filed: August 17, 2017
    Publication date: June 27, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Yoko MATSUMOTO, Masaharu ISHIKURA, Hiroshi SUZUKI
  • Publication number: 20120070409
    Abstract: The present invention relates to a tetracyclic fused heterocyclic compound represented by the following formula [I] wherein each symbol is as defined in the specification, or a pharmaceutically acceptable a salt thereof, and a hepatitis C virus (HCV) polymerase inhibitor and a therapeutic agent for hepatitis C containing this compound. The compound of the present invention shows an anti-HCV activity based on the HCV polymerase inhibitory activity, and useful as an agent for the prophylaxis or treatment of hepatitis C.
    Type: Application
    Filed: February 3, 2011
    Publication date: March 22, 2012
    Applicant: Japan Tobacco Inc.
    Inventors: Takahiro Oka, Kazutaka Ikegashira, Shintaro Hirashima, Hiroshi Yamanaka, Satoru Noji, Yasushi Niwa, Yoko Matsumoto, Toshihiro Sato, Izuru Ando, Yukihiro Nomura
  • Patent number: 7977331
    Abstract: The present invention relates to a tetracyclic fused heterocyclic compound represented by the following formula [I] wherein each symbol is as defined in the specification, or a pharmaceutically acceptable a salt thereof, and a hepatitis C virus (HCV) polymerase inhibitor and a therapeutic agent for hepatitis C containing this compound. The compound of the present invention shows an anti-HCV activity based on the HCV polymerase inhibitory activity, and useful as an agent for the prophylaxis or treatment of hepatitis C.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: July 12, 2011
    Assignee: Japan Tobacco Inc.
    Inventors: Takahiro Oka, Kazutaka Ikegashira, Shintaro Hirashima, Hiroshi Yamanaka, Satoru Noji, Yasushi Niwa, Yoko Matsumoto, Toshihiro Sato, Izuru Ando, Yukihiro Nomura
  • Patent number: 7659263
    Abstract: The present invention relates to a thienopyrrole compound represented by the following formula [I] wherein each symbol is as defined in the specification, or a pharmaceutically acceptable a salt thereof, and a hepatitis C virus (HCV) polymerase inhibitor and a therapeutic agent for hepatitis C containing this compound as an active ingredient. The compound of the present invention shows an anti-HCV activity based on the HCV polymerase inhibitory activity, and useful as an agent for the prophylaxis or treatment of hepatitis C.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: February 9, 2010
    Assignee: Japan Tobacco Inc.
    Inventors: Ryo Mizojiri, Takahiro Oka, Kenta Aoki, Satoru Noji, Yoko Matsumoto, Toshihiro Sato, Izuru Ando, Yasushi Niwa
  • Publication number: 20070049593
    Abstract: The present invention relates to a tetracyclic fused heterocyclic compound represented by the following formula [I] wherein each symbol is as defined in the specification, or a pharmaceutically acceptable a salt thereof, and a hepatitis C virus (HCV) polymerase inhibitor and a therapeutic agent for hepatitis C containing this compound. The compound of the present invention shows an anti-HCV activity based on the HCV polymerase inhibitory activity, and useful as an agent for the prophylaxis or treatment of hepatitis C.
    Type: Application
    Filed: February 23, 2005
    Publication date: March 1, 2007
    Applicant: Japan Tobacco Inc.
    Inventors: Takahiro Oka, Kazutaka Ikegashira, Shintaro Hirashima, Hiroshi Yamanaka, Satoru Noji, Yasushi Niwa, Yoko Matsumoto, Toshihiro Sato, Izuru Ando, Yukihiro Nomura
  • Publication number: 20060167246
    Abstract: The present invention relates to a thienopyrrole compound represented by the following formula [I] wherein each symbol is as defined in the specification, or a pharmaceutically acceptable a salt thereof, and a hepatitis C virus (HCV) polymerase inhibitor and a therapeutic agent for hepatitis C containing this compound as an active ingredient. The compound of the present invention shows an anti-HCV activity based on the HCV polymerase inhibitory activity, and useful as an agent for the prophylaxis or treatment of hepatitis C.
    Type: Application
    Filed: November 10, 2005
    Publication date: July 27, 2006
    Applicant: Japan Tobacco Inc.
    Inventors: Ryo Mizojiri, Takahiro Oka, Kenta Aoki, Satoru Noji, Yoko Matsumoto, Toshihiro Sato, Izuru Ando, Yasushi Niwa
  • Patent number: 7054668
    Abstract: A makeup mirror apparatus comprises a case body, a case lid, and a rotary shaft rotatably connecting the case body and the case lid. The case body is provided with a cosmetic-material containing area, a brush containing area, and operation buttons. The case lid is provided with a mirror unit, a camera portion, and a memory slot. The mirror unit is constituted such that an LCD panel is stacked on a half mirror. By manipulating the operation button, a sample image is read from a memory card loaded in the memory slot. The read sample image is displayed on the LCD panel and is overlapped with a user's face reflected in the half mirror. Makeup is performed by tracing the sample image.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: May 30, 2006
    Assignee: FUji Photo Film Co., Ltd.
    Inventors: Hiroshi Endo, Yoko Matsumoto
  • Publication number: 20040043918
    Abstract: The present invention provides an apoptosis inducer comprising, as active ingredients, a compound selected from the group consisting of di(alkylcarbonyl) phosphatidylcholine, di(alkylcarbonyl) phosphatidylalkanolamine, di(alkylcarbonyl) phosphatidylinositol and di(alkylcarbonyl) phosphatidylserine.
    Type: Application
    Filed: July 15, 2003
    Publication date: March 4, 2004
    Applicants: KIMIGAFUCHI GAKUEN, RYUICHI UEOKA
    Inventors: Ryuichi Ueoka, Yoko Matsumoto
  • Publication number: 20030041871
    Abstract: A makeup mirror apparatus comprises a case body, a case lid, and a rotary shaft rotatably connecting the case body and the case lid. The case body is provided with a cosmetic-material containing area, a brush containing area, and operation buttons. The case lid is provided with a mirror unit, a camera portion, and a memory slot. The mirror unit is constituted such that an LCD panel is stacked on a half mirror. By manipulating the operation button, a sample image is read from a memory card loaded in the memory slot. The read sample image is displayed on the LCD panel and is overlapped with a user's face reflected in the half mirror. Makeup is performed by tracing the sample image.
    Type: Application
    Filed: September 5, 2002
    Publication date: March 6, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hiroshi Endo, Yoko Matsumoto
  • Patent number: 5391695
    Abstract: A process for producing a binder resin is disclosed, which comprises blending in a reactor a raw monomer for a first polymerization system and a raw monomer for a second polymerization system which undergoes polymerization through a reaction path different from a reaction path of said first polymerization system and then conducting said first and second polymerization reactions in the same reactor. A toner and a developer composition employing the binder resin are also disclosed. The binder resin can easily be pulverized and can give toners and developer compositions which hold a good charge and from which an environmentally stable fixed image can be obtained.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: February 21, 1995
    Assignee: Kao Corporation
    Inventors: Kuniyasu Kawabe, Yoko Matsumoto