Patents by Inventor Ryohei Yokoyama

Ryohei Yokoyama 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).

  • Sulfonamide derivative and medicinal use thereof
    Patent number: 9533985
    Abstract: Sulfonamide compounds of a specific chemical structure in which a sulfonamide group having, as a substituent, a phenyl group or a heterocyclic group having a hetero atom(s) as a constituent element(s) is present at its terminal, and pharmaceutically acceptable salts thereof. These compounds are novel compounds having excellent ?4 integrin-inhibitory action.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: January 3, 2017
    Assignee: EA Pharma Co., Ltd.
    Inventors: Hirokazu Ueno, Takashi Yamamoto, Ryuta Takashita, Ryohei Yokoyama, Toshihiko Sugiura, Shunsuke Kageyama, Ayatoshi Ando, Hiroyuki Eda, Agung Eviryanti, Tomoko Miyazawa, Aya Kirihara, Itsuya Tanabe, Tarou Nakamura, Misato Noguchi, Manami Shuto, Masayuki Sugiki, Mizuki Dohi
  • SULFONAMIDE DERIVATIVE AND MEDICINAL USE THEREOF
    Publication number: 20150051395
    Abstract: Provided are sulfonamide derivatives of a specific chemical structure in which a sulfonamide group having, as a substituent, a phenyl group or a heterocyclic group having a hetero atom(s) as a constituent element(s) is present at its terminal, and pharmaceutically acceptable salts thereof. These compounds are novel compounds having excellent ?4 integrin-inhibitory action.
    Type: Application
    Filed: April 24, 2013
    Publication date: February 19, 2015
    Applicant: AJINOMOTO CO., LTD.
    Inventors: Hirokazu Ueno, Takashi Yamamoto, Ryuta Takashita, Ryohei Yokoyama, Toshihiko Sugiura, Shunsuke Kageyama, Ayatoshi Ando, Hiroyuki Eda, Agung Eviryanti, Tomoko Miyazawa, Aya Kirihara, Itsuya Tanabe, Tarou Nakamura, Misato Noguchi, Manami Shuto, Masayuki Sugiki, Mizuki Dohi
  • DATA MANAGEMENT METHOD, DATA MANAGEMENT SYSTEM, AND DATA MANAGEMENT APPARATUS
    Publication number: 20140365681
    Abstract: A data management method includes acquiring, by a management computer, information of an amount of resource load from a plurality of computers; when a first computer having a higher amount of load than a threshold value is detected in a first area to which a first computer belongs, generating, by the management computer, a second identification range of identifier values by adding a first identification range of a first area to which the detected first computer belongs to a first identification range of a second area different from the first area; calculating, by the first computer, a first target identification of a second computer in the second area corresponding to the first data, based on the first identification ranges and the second identification range, when an operation request for first data is received; and transferring, by the first computer, the operation request for the first data to the second computer.
    Type: Application
    Filed: June 2, 2014
    Publication date: December 11, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Kei Hamada, Ryohei Yokoyama
  • IMIDAZOPYRIDAZINE COMPOUNDS
    Publication number: 20120323002
    Abstract: By searching various compounds having an inhibiting activity against IL-12/IL-23 production, the present invention provides a pharmaceutical composition or a therapeutic or preventive agent for diseases related to IL-12/IL-23 excessive production each of which comprises the compound(s) of the present invention. More specifically, the present invention provides an imidazopyridazine compound having an inhibiting activity against IL-12/IL-23 production or pharmaceutically acceptable salts thereof; and a useful pharmaceutical composition or a useful therapeutic or preventive agent for diseases related to IL-12/IL-23 excessive production each of which comprises said compound or pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: June 25, 2012
    Publication date: December 20, 2012
    Applicant: AJINOMOTO CO., INC.
    Inventors: Takashi YAMAMOTO, Ayatoshi ANDO, Nobuhiko HAYAKAWA, Masatsugu NOGUCHI, Hikaru NISHIO, Agung EVIRYANTI, Ryohei YOKOYAMA, Shunsuke KAGEYAMA, Kanna KURIBAYASHI
  • Pyrazolo-pyrimidine compounds
    Patent number: 8314098
    Abstract: The present invention has searched for a variety of compounds which show IL-12/IL-23 production-inhibitory activities and herein provides a pharmaceutical composition and an agent for preventing or treating IL-12/IL-23 excess production-related diseases, which comprise the compound.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: November 20, 2012
    Assignee: Ajinomoto Co., Inc.
    Inventors: Takashi Yamamoto, Ayatoshi Andou, Nobuhiko Hayakawa, Masatsugu Noguchi, Kanna Kuribayashi, Agung Eviryanti, Ryohei Yokoyama, Shunsuke Fukuda, Toshihiko Sugiura, Shunsuke Kageyama, Yoichiro Shima, Misato Noguchi
  • PYRAZOLO-PYRIMIDINE COMPOUNDS
    Publication number: 20110294781
    Abstract: The present invention has searched for a variety of compounds which show IL-12/IL-23 production-inhibitory activities and herein provides a pharmaceutical composition and an agent for preventing or treating IL-12/IL-23 excess production-related diseases, which comprise the compound.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 1, 2011
    Applicant: AJINOMOTO CO., INC.
    Inventors: Takashi YAMAMOTO, Ayatoshi Andou, Nobuhiko Hayakawa, Masatsugu Noguchi, Kanna Kuribayashi, Agung Eviryanti, Ryohei Yokoyama, Shunsuke Fukuda, Toshihiko Sugiura, Shunsuke Kageyama, Yoichiro Shima, Misato Noguchi