Patents by Inventor Yusaku Katada

Yusaku Katada 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: 11932679
    Abstract: The purpose of the present invention is to provide an agent for restoring a visual function or an agent for preventing the deterioration in a visual function, which has an excellent visual function restoring ability. The agent for regenerating a visual function or the agent for preventing the deterioration in a visual function according to the present invention contains, as an active ingredient, a chimeric protein having both an amino acid sequence for a microorganism-origin ion-transporting receptor rhodopsin and an amino acid sequence for an animal-origin G-protein-coupled receptor rhodopsin. The chimeric protein is preferably one in which an amino acid sequence for a cytoplasm-side second loop and/or a cytoplasm-side third loop in the amino acid sequence for the microorganism-origin ion-transporting receptor rhodopsin is substituted by an amino acid sequence for a cytoplasm-side second loop and/or a cytoplasm-side third loop in the G-protein-coupled receptor rhodopsin.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: March 19, 2024
    Assignees: Keio University, Nagoya Institute of Technology
    Inventors: Toshihide Kurihara, Yusaku Katada, Hiromitsu Kunimi, Kazuo Tsubota, Hideki Kandori
  • Patent number: 11771741
    Abstract: Provided are: a nucleic acid including a nucleic acid sequence encoding a chimeric protein including at least part of an ion-transporting receptor rhodopsin and at least part of a G protein-coupled receptor rhodopsin and a nucleic acid sequence encoding a signal sequence; and a nucleic acid including a nucleic acid sequence encoding a chimeric protein including at least part of an ion channeling receptor rhodopsin and at least part of a G protein-coupled receptor rhodopsin; and a nucleic acid construct including the nucleic acid sequences. The use of the nucleic acids or nucleic acid constructs prevents and suppresses the progress of retinal diseases, and enhances the visual cognitive behavioral function and visual function.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: October 3, 2023
    Assignee: Restore Vision Inc.
    Inventors: Toshihide Kurihara, Yusaku Katada, Kazuo Tsubota, Hideki Kandori
  • Publication number: 20230248804
    Abstract: Provided are: a nucleic acid including a nucleic acid sequence encoding a chimeric protein including at least part of an ion-transporting receptor rhodopsin and at least part of a G protein-coupled receptor rhodopsin and a nucleic acid sequence encoding a signal sequence; and a nucleic acid including a nucleic acid sequence encoding a chimeric protein including at least part of an ion channeling receptor rhodopsin and at least part of a G protein-coupled receptor rhodopsin; and a nucleic acid construct including the nucleic acid sequences. The use of the nucleic acids or nucleic acid constructs prevents and suppresses the progress of retinal diseases, and enhances the visual cognitive behavioral function and visual function.
    Type: Application
    Filed: April 28, 2022
    Publication date: August 10, 2023
    Inventors: Toshihide Kurihara, Yusaku Katada, Kazuo Tsubota, Hideki Kandori
  • Publication number: 20220402994
    Abstract: Provided are: a nucleic acid including a nucleic acid sequence encoding a chimeric protein including at least part of an ion-transporting receptor rhodopsin and at least part of a G protein-coupled receptor rhodopsin and a nucleic acid sequence encoding a signal sequence; and a nucleic acid including a nucleic acid sequence encoding a chimeric protein including at least part of an ion channeling receptor rhodopsin and at least part of a G protein-coupled receptor rhodopsin; and a nucleic acid construct including the nucleic acid sequences. The use of the nucleic acids or nucleic acid constructs prevents and suppresses the progress of retinal diseases, and enhances the visual cognitive behavioral function and visual function.
    Type: Application
    Filed: September 11, 2020
    Publication date: December 22, 2022
    Inventors: Toshihide Kurihara, Yusaku Katada, Kazuo Tsubota, Hideki Kandori
  • Publication number: 20220273761
    Abstract: Provided are: a nucleic acid including a nucleic acid sequence encoding a chimeric protein including at least part of an ion-transporting receptor rhodopsin and at least part of a G protein-coupled receptor rhodopsin and a nucleic acid sequence encoding a signal sequence; and a nucleic acid including a nucleic acid sequence encoding a chimeric protein including at least part of an ion channeling receptor rhodopsin and at least part of a G protein-coupled receptor rhodopsin; and a nucleic acid construct including the nucleic acid sequences. The use of the nucleic acids or nucleic acid constructs prevents and suppresses the progress of retinal diseases, and enhances the visual cognitive behavioral function and visual function.
    Type: Application
    Filed: April 28, 2022
    Publication date: September 1, 2022
    Inventors: Toshihide Kurihara, Yusaku Katada, Kazuo Tsubota, Hideki Kandori
  • Publication number: 20220025018
    Abstract: Provided are a chimeric protein of two types of rhodopsins, an ion-transporting rhodopsin and a G protein-coupled receptor rhodopsin, and a nucleic acid encoding the same, for the prevention and suppression of progression of retinal diseases, the improvement in visual cognitive behavioral functions (e.g., improvement in light-dark determination functions, improvement in bright spot evading functions, and/or crisis avoidance functions), and the enhancement of visual functions (e.g., improvement in visual acuity). The present invention also provides a method for preventing or suppressing the progression of a disease, disorder or symptom of the retina, for improving a visual cognitive behavioral function (e.g., improvement in light-dark determination functions, improvement in bright spot evading functions, and/or crisis avoidance functions), or for enhancing visual functions (e.g.
    Type: Application
    Filed: January 18, 2019
    Publication date: January 27, 2022
    Inventors: Toshihide Kurihara, Yusaku Katada, Kazuo Tsubota
  • Publication number: 20210000343
    Abstract: A device for supporting diagnosis has: a reception unit that is configured to receive a fundus image of a subject eye; an identification unit provided with a trained model that is configured to recognize, in the fundus image of the subject eye, an area of abnormality in blood circulation, wherein the model has been trained based upon an image of a fundus and an area of abnormality in blood circulation specified in a fluorescent angiography image of the fundus; and an output unit that is configured to output information relating to the area of abnormality in blood circulation recognized in the fundus image of the subject eye.
    Type: Application
    Filed: July 16, 2020
    Publication date: January 7, 2021
    Applicant: NIKON CORPORATION
    Inventors: Toshihide KURIHARA, Yusaku KATADA, Kazuo TSUBOTA, Kanato MASAYOSHI
  • Publication number: 20190194294
    Abstract: The purpose of the present invention is to provide an agent for restoring a visual function or an agent for preventing the deterioration in a visual function, which has an excellent visual function restoring ability. The agent for regenerating a visual function or the agent for preventing the deterioration in a visual function according to the present invention contains, as an active ingredient, a chimeric protein having both an amino acid sequence for a microorganism-origin ion-transporting receptor rhodopsin and an amino acid sequence for an animal-origin G-protein-coupled receptor rhodopsin. The chimeric protein is preferably one in which an amino acid sequence for a cytoplasm-side second loop and/or a cytoplasm-side third loop in the amino acid sequence for the microorganism-origin ion-transporting receptor rhodopsin is substituted by an amino acid sequence for a cytoplasm-side second loop and/or a cytoplasm-side third loop in the G-protein-coupled receptor rhodopsin.
    Type: Application
    Filed: September 1, 2017
    Publication date: June 27, 2019
    Inventors: Toshihide Kurihara, Yusaku Katada, Hiromitsu Kunimi, Kazuo Tsubota, Hideki Kandori