Patents by Inventor Akio Katayama

Akio Katayama 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: 11943213
    Abstract: Facilitate configuration of authentication information for a service provided over IP network when there is no shared authentication information between IoT device and service provider device for a service used by IoT device, an intermediary device capable of authenticating legitimate access mediates between devices. An example: a cipher key CK stored in intermediary device and IoT device, as a result of SIM authentication of the SIM of the IoT device, is used as master key for services used by IoT device. By generating unique application key for a service used by IoT device on the intermediary device and IoT device on the basis of master key, and sending it to service provider apparatus from intermediary device by secure connection, common keys are set as authentication information to IoT device and service provider apparatus. A SIM authentication process for generating cipher key can suppress SQN attack based on a bad request.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: March 26, 2024
    Assignee: SORACOM, INC.
    Inventors: Akio Katayama, Kengo Sakai, Georges Olivier Comarmond
  • Publication number: 20240049386
    Abstract: An object of the present invention is to provide a laminate excellent in a shape stability of a conductive pattern and excellent in transparency even after heating. There is provided a laminate including a base material and a conductive pattern containing a metal nanobody and a resin, where a total light transmittance of the base material is 75% or more, and a glass transition temperature of the base material is 120° C. or higher, and provided an electronic device including the laminate. The glass transition temperature of the base material is preferably 200° C. or higher, and the coefficient of thermal expansion of the base material at 100° C. to 200° C. is preferably 10×10?6 (/K) or more and 50×10?6 (/K) or less.
    Type: Application
    Filed: July 27, 2023
    Publication date: February 8, 2024
    Applicant: Fujifilm Corporation
    Inventors: Akio KATAYAMA, Takashi ARIDOMI
  • Publication number: 20230305403
    Abstract: Provided are a pattern forming method which includes a step of preparing a laminate having a first photosensitive layer, a substrate having a region transparent to an exposure wavelength, and a second photosensitive layer in this order, a step of exposing the first photosensitive layer, a step of exposing the second photosensitive layer, a step of developing the exposed first photosensitive layer to form a first resin pattern, and a step of developing the exposed second photosensitive layer to form a second resin pattern, and in which a dominant wavelength ?1 of an exposure wavelength in the step of exposing the first photosensitive layer and a dominant wavelength ?2 of an exposure wavelength in the step of exposing the second photosensitive layer satisfy a relation of ?1 ? ?2, a laminate, and applications of these.
    Type: Application
    Filed: November 21, 2022
    Publication date: September 28, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Akio KATAYAMA, Soji ISHIZAKA, Morimasa SATO
  • Publication number: 20230199502
    Abstract: A method for remotely managing a device involving receiving an initial setting request including a device ID of a device together with an identification number for connecting to a cellular network or a corresponding ID via the cellular network from the device on which the identification number is stored, obtaining a customer ID corresponding to the identification number based on the identification number or the corresponding ID, generating a credential for the device using the customer ID and the device ID, and transmitting initial setting information including the credential or corresponding authentication information to the device.
    Type: Application
    Filed: July 2, 2018
    Publication date: June 22, 2023
    Inventors: Kenta YASUKAWA, Akio KATAYAMA
  • Publication number: 20230094540
    Abstract: Facilitate configuration of authentication information for a service provided over IP network when there is no shared authentication information between IoT device and service provider device for a service used by IoT device, an intermediary device capable of authenticating legitimate access mediates between devices. An example: a cipher key CK stored in intermediary device and IoT device, as a result of SIM authentication of the SIM of the IoT device, is used as master key for services used by IoT device. By generating unique application key for a service used by IoT device on the intermediary device and IoT device on the basis of master key, and sending it to service provider apparatus from intermediary device by secure connection, common keys are set as authentication information to IoT device and service provider apparatus. A SIM authentication process for generating cipher key can suppress SQN attack based on a bad request.
    Type: Application
    Filed: December 8, 2022
    Publication date: March 30, 2023
    Inventors: Akio KATAYAMA, Kengo SAKAI, Georges Olivier COMARMOND
  • Patent number: 11552938
    Abstract: Facilitate configuration of authentication information for a service provided over IP network when there is no shared authentication information between IoT device and service provider device for a service used by IoT device, an intermediary device capable of authenticating legitimate access mediates between devices. An example: a cipher key CK stored in intermediary device and IoT device, as a result of SIM authentication of the SIM of the IoT device, is used as master key for services used by IoT device. By generating unique application key for a service used by IoT device on the intermediary device and IoT device on the basis of master key, and sending it to service provider apparatus from intermediary device by secure connection, common keys are set as authentication information to IoT device and service provider apparatus. A SIM authentication process for generating cipher key can suppress SQN attack based on a bad request.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: January 10, 2023
    Assignee: SORACOM, INC.
    Inventors: Akio Katayama, Kengo Sakai, Georges Olivier Comarmond
  • Publication number: 20220400553
    Abstract: There are provided a manufacturing method for a substrate having a conductive pattern, a manufacturing method for an electronic device, and a substrate having a conductive pattern, which are excellent in the dimensional stability of the conductive pattern after applying an electric current, as well as a protective film for a metal nanobody.
    Type: Application
    Filed: May 24, 2022
    Publication date: December 15, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Akio KATAYAMA, Morimasa SATO
  • Publication number: 20210258295
    Abstract: Facilitate configuration of authentication information for a service provided over IP network when there is no shared authentication information between IoT device and service provider device for a service used by IoT device, an intermediary device capable of authenticating legitimate access mediates between devices. An example: a cipher key CK stored in intermediary device and IoT device, as a result of SIM authentication of the SIM of the IoT device, is used as master key for services used by IoT device. By generating unique application key for a service used by IoT device on the intermediary device and IoT device on the basis of master key, and sending it to service provider apparatus from intermediary device by secure connection, common keys are set as authentication information to IoT device and service provider apparatus. A SIM authentication process for generating cipher key can suppress SQN attack based on a bad request.
    Type: Application
    Filed: July 2, 2019
    Publication date: August 19, 2021
    Inventors: Akio KATAYAMA, Kengo SAKAI, Georges Olivier COMARMOND
  • Publication number: 20120205599
    Abstract: A color filter which has a green colored area that is heat-resistant and has a high luminance, and which is excellent in terms of color reproducibility when applied to an image display apparatus, is provided. An image display apparatus which has the color filter and is excellent in terms of color reproducibility is provided. The color filter has, on a substrate, a green colored area that contains a green pigment or cyan pigment and at least one yellow dye selected from the group consisting of the following (1) to (3): (1) a methine dye having a pyrazolotriazole ring in a structure thereof; (2) an azo dye having a pyridone ring in a structure thereof; and (3) an azo dye having a pyrazole ring in a structure thereof.
    Type: Application
    Filed: August 4, 2010
    Publication date: August 16, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Keisuke Matsumoto, Akio Katayama
  • Patent number: 5927260
    Abstract: The air/fuel ratio of an engine is feedback controlled based upon the output of an oxygen sensor. The control includes proportional control and also correction of a control variable for this proportional control according to the actual air/fuel ratio. The period of the output signal of the oxygen sensor during feedback control is measured, a decision value is set corresponding to change in the control variable, and deterioration of the oxygen sensor is determined by comparing the period of the output signal with the decision value. By doing this, change in the control variable is prevented from exerting any influence upon the period of the output signal of the oxygen sensor, and the accuracy of deterioration diagnosis for the oxygen sensor is enhanced.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: July 27, 1999
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Youichi Kishimoto, Akio Katayama