Patents by Inventor Ryo HAMAMOTO

Ryo HAMAMOTO 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: 10829514
    Abstract: A virus removal membrane is formed from a hydrophilized synthetic polymer, in which, when a solution containing gold colloids having a diameter of 20 nm is applied through a primary surface to the virus removal membrane to allow the virus removal membrane to capture the gold colloids for measurement of brightness in a cross section of the virus removal membrane, a value obtained by dividing a standard deviation of a value of an area of a spectrum of variation in the brightness by an average of the value of the area is 0.01 or more and 1.5 or less; and a thickness of a portion, where gold colloids having a diameter of 20 nm or more and 30 nm or less are captured, in the cross section of the virus removal membrane in a wet state is 10 ?m or more and 30 ?m or less.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: November 10, 2020
    Assignee: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Ryo Hamamoto, Tomoko Hongo, Fujiharu Nagoya
  • Publication number: 20200293695
    Abstract: A device 81 includes a memory space having a secure space. A determination device 82 is disposed in the secure space and determines a right in a region in the secure space. A policy storage unit 83 is disposed in the secure space and stores a policy having defined therein at least one of an access right to the region and an execution right of a function disposed in the region. Access to the secure space and execution of the function in the secure space are performed via the determination device 82, and the determination device 82 controls the access to and the execution in the secure space on the basis of the policy.
    Type: Application
    Filed: July 12, 2017
    Publication date: September 17, 2020
    Applicant: NEC Corporation
    Inventors: Ryo HAMAMOTO, Takayuki SASAKI
  • Publication number: 20200233963
    Abstract: An attestation system 80 includes a trustworthiness calculation unit 81 and an attestation unit 82. The trustworthiness calculation unit 81 calculates trustworthiness determined based on a state of a component, a method of attestation, or a result of attestation, for the component. The attestation unit 82 performs attestation of the component based on the trustworthiness.
    Type: Application
    Filed: July 12, 2017
    Publication date: July 23, 2020
    Applicant: NEC CORPORATION
    Inventors: Ryo HAMAMOTO, Takayuki SASAKI
  • Publication number: 20200201990
    Abstract: A control system 80 includes a control unit 81 that controls transmission of data from a source to a destination. The control unit 81 controls transmission of data to a destination based on a distribution history of transmission data.
    Type: Application
    Filed: May 26, 2017
    Publication date: June 25, 2020
    Applicant: NEC Corporation
    Inventors: Ryo HAMAMOTO, Takayuki SASAKI
  • Patent number: 10675593
    Abstract: A virus removal membrane is formed from cellulose, in which, when a solution containing gold colloids having a diameter of 20 nm is applied through a primary surface to the virus removal membrane to allow the virus removal membrane to capture the gold colloids for measurement of brightness in a cross section of the virus removal membrane, a value obtained by dividing a standard deviation of a value of an area of a spectrum of variation in the brightness by an average of the value of the area is 0.01 or more and 1.5 or less; and a thickness of a portion, where gold colloids having a diameter of 20 nm or more and 30 nm or less are captured, in the cross section of the virus removal membrane in a wet state is 10.0 ?m or more and 30.0 ?m or less.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: June 9, 2020
    Assignee: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Ryo Hamamoto, Tomoko Hongo, Yusuke Kon
  • Publication number: 20200151151
    Abstract: A data tracking unit 80 includes a distribution history storage unit 81 that stores a distribution history of data, a tracking tag adding unit 82 that adds a tracking tag used to identify tracking data, a first transmission unit 83 that transmits data to which the tracking tag is added to the component 90, and a distribution history registration unit 84 that registers a distribution history of the data to which the tracking tag is added, in the distribution history storage unit 81. The component 90 includes a second transmission unit 91 that transmits data to which the same tracking tag as a tracking tag added to the received data is added to another component 90 or the data tracking unit 80. The history registration unit 84 registers a result of tracking of data associated with the same tracking tag, as a distribution history of the data, in the distribution history storage unit 81.
    Type: Application
    Filed: May 26, 2017
    Publication date: May 14, 2020
    Applicant: NEC Corporation
    Inventors: Takayuki SASAKI, Ryo HAMAMOTO
  • Publication number: 20170029462
    Abstract: A virus removal membrane is formed from a hydrophilized synthetic polymer, in which, when a solution containing gold colloids having a diameter of 20 nm is applied through a primary surface to the virus removal membrane to allow the virus removal membrane to capture the gold colloids for measurement of brightness in a cross section of the virus removal membrane, a value obtained by dividing a standard deviation of a value of an area of a spectrum of variation in the brightness by an average of the value of the area is 0.01 or more and 1.5 or less; and a thickness of a portion, where gold colloids having a diameter of 20 nm or more and 30 nm or less are captured, in the cross section of the virus removal membrane in a wet state is 10 ?m or more and 30 ?m or less.
    Type: Application
    Filed: April 10, 2015
    Publication date: February 2, 2017
    Applicant: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Ryo HAMAMOTO, Tomoko HONGO, Fujiharu NAGOYA
  • Publication number: 20170028360
    Abstract: A virus removal membrane is formed from cellulose, in which, when a solution containing gold colloids having a diameter of 20 nm is applied through a primary surface to the virus removal membrane to allow the virus removal membrane to capture the gold colloids for measurement of brightness in a cross section of the virus removal membrane, a value obtained by dividing a standard deviation of a value of an area of a spectrum of variation in the brightness by an average of the value of the area is 0.01 or more and 1.5 or less; and a thickness of a portion, where gold colloids having a diameter of 20 nm or more and 30 nm or less are captured, in the cross section of the virus removal membrane in a wet state is 10.0 ?m or more and 30.0 ?m or less.
    Type: Application
    Filed: April 10, 2015
    Publication date: February 2, 2017
    Applicant: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Ryo HAMAMOTO, Tomoko HONGO, Yusuke KON