Patents by Inventor Tatsuhiko Sakai

Tatsuhiko Sakai 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: 20210204356
    Abstract: A communication apparatus, when it perform data communication using a master base station and a secondary base station, stops communication with the secondary base station, confirms with a user whether or not the data communication is to continue in a case where communication with the secondary base station is stopped, and in a case where it was confirmed that the data communication is not continue, stops communication with the master base station.
    Type: Application
    Filed: March 11, 2021
    Publication date: July 1, 2021
    Inventor: Tatsuhiko Sakai
  • Patent number: 11051347
    Abstract: In a communication apparatus on a network where communication apparatuses perform direct communication with each other, a network management apparatus for managing the network based on message information transmitted and received on the network is determined. When the communication apparatus itself is determined as the network management apparatus, the apparatus collects information indicating device capabilities from other communication apparatuses. On the other hand, the communication apparatus receives information indicating device capabilities from another communication apparatus when the other communication apparatus is determined as the network management apparatus.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: June 29, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuhiko Sakai, Kenichi Fujii, Mitsuhiro Watanabe, Kazuo Moritomo
  • Patent number: 11039365
    Abstract: Whether a detected wireless network is capable of connection using a Fast Initial Link Setup (FILS) method is determined, and handover processing for switching a connection destination to the detected wireless network is performed based on the result of determination.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: June 15, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tatsuhiko Sakai
  • Patent number: 11026295
    Abstract: A communication apparatus includes a determination device configured to, in a case where the communication apparatus connects to a first network of a first base station via a first frequency channel and the communication apparatus participates in a second network via the first frequency channel without connection to a base station, determine whether a second frequency channel used by a second base station is usable in the communication performed, and a control device configured to control the communication without connection to the base station according to the determination by the determination device.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: June 1, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tatsuhiko Sakai
  • Patent number: 10993159
    Abstract: Whether a detected wireless network is capable of connection using a Fast Initial Link Setup (FILS) method is determined, and handover processing for switching a connection destination to the detected wireless network is performed based on the result of determination.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: April 27, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tatsuhiko Sakai
  • Patent number: 10938645
    Abstract: A communication apparatus communicates with another communication apparatus that can operate as a creating apparatus creating a wireless network or as a participating apparatus participating in a wireless network created by a creating apparatus, and determines, when the another communication apparatus operates as the creating apparatus, whether a number of connectable apparatuses is greater than or equal to a predetermined value. When the number of connectable apparatuses is greater than or equal to the predetermined value, the communication apparatus provides the another communication apparatus with communication parameters to be used for operating as the creating apparatus. When the number of connectable apparatuses is less than the predetermined value, the communication apparatus provides the another communication apparatus with communication parameters to be used for operating as the participating apparatus.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: March 2, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tatsuhiko Sakai
  • Publication number: 20210058764
    Abstract: A communication apparatus controls, while carrying out wireless communication, the ongoing wireless communication based on country information acquired via other wireless communication.
    Type: Application
    Filed: July 24, 2020
    Publication date: February 25, 2021
    Inventor: Tatsuhiko Sakai
  • Patent number: 10906134
    Abstract: Provided is a grain-oriented electrical steel sheet including a steel sheet having a steel sheet surface in which a groove, which extends in a direction intersecting a rolling direction and of which a groove depth direction matches a sheet thickness direction, is formed. In a case where the steel sheet surface is seen from the sheet thickness direction, the steel sheet surface is provided with a groove group that is constituted by a plurality of the grooves arranged in a sheet width direction, the grooves, which constitute the groove group, are arranged in such a manner that adjacent grooves overlap each other on a projection plane perpendicular to the rolling direction, and a plurality of the groove groups are arranged with an interval in the rolling direction.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: February 2, 2021
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Hideyuki Hamamura, Tatsuhiko Sakai, Hisashi Mogi, Fumiaki Takahashi, Hirofumi Imai, Shunsuke Okumura
  • Publication number: 20200314707
    Abstract: A communication apparatus capable of executing concurrent communication with a first base station and a second base station based on Dual Connectivity (DC) defined in cellular communication standards of the Third Generation Partnership Project is provided. The first base station operates as a master node in the DC and the second base station operates as a secondary node in the DC. If the state of the communication apparatus has transitioned from an RRC_Inactive state to an RRC_Connected state in a state in which settings related to the DC are maintained, the communication apparatus controls the state of the communication apparatus to maintain the RRC_Connected state regardless of whether or not connection processing for establishing a connection to the second base station is successful.
    Type: Application
    Filed: March 19, 2020
    Publication date: October 1, 2020
    Inventor: Tatsuhiko Sakai
  • Patent number: 10773338
    Abstract: In a laser processing apparatus for refining magnetic domains of a grain-oriented electromagnetic steel sheet by setting a laser beam to be focused on the grain-oriented electromagnetic steel sheet and scanned in a scanning direction, the laser beam focused on the grain-oriented electromagnetic steel sheet is linearly polarized light, and the angle between the linear polarization direction and the scanning direction is equal to or higher than 0° and lower than 45°.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: September 15, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Koji Hirano, Hirofumi Imai, Hideyuki Hamamura, Tatsuhiko Sakai
  • Patent number: 10685104
    Abstract: A communication apparatus includes a first execution unit, a second execution unit, and a selecting unit. The first execution unit performs a first process for setting a wireless parameter, based on information obtained from a captured image. The setting of a wireless parameter is performed between the communication apparatus and another communication apparatus that operates as an access point and that is different from the communication apparatus. The second execution unit performs, based on information obtained from a captured image, a second process for setting a wireless parameter to another communication apparatus that operates as a station and that is different from the communication apparatus. The wireless parameter is one for performing wireless communication with an access point. The selecting unit selects whether the first process or the second process is to be performed, in a case where information is obtained from a first captured image.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: June 16, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tatsuhiko Sakai
  • Patent number: 10675714
    Abstract: Provided is a grain-oriented electrical steel sheet including a steel sheet having a steel sheet surface in which a groove, which extends in a direction intersecting a rolling direction and of which a groove depth direction matches a sheet thickness direction, is formed. An average depth D of the groove is greater than 10 ?m and equal to or less than 40 ?m in a case where the groove is seen on a groove-width-direction cross-section that is perpendicular to a groove extension direction, when a center of the groove in the groove width direction is defined as a groove width center, a deepest portion of the groove deviates from the groove width center toward one side in the groove width direction, and a cross-sectional shape of the groove is asymmetric with respect to the groove width center as a reference in the groove width direction.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: June 9, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Tatsuhiko Sakai, Hideyuki Hamamura, Hisashi Mogi, Fumiaki Takahashi
  • Publication number: 20200037193
    Abstract: A communication apparatus connectable to a communication network notifies the presence of the communication apparatus using a communication channel assigned to the communication apparatus, then sets one communication channel different from the assigned communication channel of those available in the communication network, and searches for a communication partner apparatus which functions as a providing apparatus that provides communication parameters using the set communication channel. The communication apparatus repetitively executes the notification processing and the search processing, and changes a communication channel used in the search processing every time the repetition is executed one or a plurality of number of times.
    Type: Application
    Filed: October 3, 2019
    Publication date: January 30, 2020
    Inventors: Fumihide Goto, Tatsuhiko Sakai
  • Publication number: 20200015084
    Abstract: A communication apparatus includes an authentication unit that sets a communication parameter for connecting to a wireless network, and executes authentication processing, with a base station, for registering the communication apparatus to the base station that forms the wireless network, as a management apparatus that is allowed to connect another apparatus to the wireless network, a setting unit that, based on information acquired from code information captured through imaging, sets the communication parameter to another communication apparatus corresponding to the code information, and a registration unit that executes registration processing for registering the other communication apparatus to the base station as the management apparatus, based on at least a condition that the communication parameter is set to the other communication apparatus by the setting unit.
    Type: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Inventor: Tatsuhiko Sakai
  • Patent number: 10462696
    Abstract: A communication apparatus connectable to a communication network notifies the presence of the communication apparatus using a communication channel assigned to the communication apparatus, then sets one communication channel different from the assigned communication channel of those available in the communication network, and searches for a communication partner apparatus which functions as a providing apparatus that provides communication parameters using the set communication channel. The communication apparatus repetitively executes the notification processing and the search processing, and changes a communication channel used in the search processing every time the repetition is executed one or a plurality of number of times.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: October 29, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Fumihide Goto, Tatsuhiko Sakai
  • Publication number: 20190320317
    Abstract: A communication apparatus reads an image relating to a first other communication apparatus and acquires information on the first other communication apparatus from the image. The communication apparatus reads an image relating to a second other communication apparatus and acquires information on the second other communication apparatus from the image. The communication apparatus transmits information on a communication channel to the first other communication apparatus. The communication channel is for use in a role determination process for determining roles of the first other communication apparatus and the second other communication apparatus in direct wireless communication. The communication apparatus transmits the information on the communication channel and the information on the first other communication apparatus to the second other communication apparatus.
    Type: Application
    Filed: June 26, 2017
    Publication date: October 17, 2019
    Inventor: Tatsuhiko Sakai
  • Patent number: 10440571
    Abstract: A communication apparatus includes an authentication unit that sets a communication parameter for connecting to a wireless network, and executes authentication processing, with a base station, for registering the communication apparatus to the base station that forms the wireless network, as a management apparatus that is allowed to connect another apparatus to the wireless network, a setting unit that, based on information acquired from code information captured through imaging, sets the communication parameter to another communication apparatus corresponding to the code information, and a registration unit that executes registration processing for registering the other communication apparatus to the base station as the management apparatus, based on at least a condition that the communication parameter is set to the other communication apparatus by the setting unit.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: October 8, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tatsuhiko Sakai
  • Patent number: 10434606
    Abstract: Provided is a grain-oriented electrical steel sheet including a steel sheet having a steel sheet surface in which a groove, which extends in a direction intersecting a rolling direction and of which a groove depth direction matches a sheet thickness direction, is formed. When an average value of a groove depth in a sheet thickness direction at a central portion of the groove in a longitudinal groove direction is set as an average groove depth D, a straight line, which connects a first point at which a groove depth in the sheet thickness direction becomes 0.05×D and a second point at which the groove depth becomes 0.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: October 8, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Hideyuki Hamamura, Tatsuhiko Sakai, Fumiaki Takahashi, Hisashi Mogi, Shunsuke Okumura, Hirofumi Imai
  • Publication number: 20190306019
    Abstract: A communication apparatus communicates with another communication apparatus that can operate as a creating apparatus creating a wireless network or as a participating apparatus participating in a wireless network created by a creating apparatus, and determines, when the another communication apparatus operates as the creating apparatus, whether a number of connectable apparatuses is greater than or equal to a predetermined value. When the number of connectable apparatuses is greater than or equal to the predetermined value, the communication apparatus provides the another communication apparatus with communication parameters to be used for operating as the creating apparatus. When the number of connectable apparatuses is less than the predetermined value, the communication apparatus provides the another communication apparatus with communication parameters to be used for operating as the participating apparatus.
    Type: Application
    Filed: March 26, 2019
    Publication date: October 3, 2019
    Inventor: Tatsuhiko Sakai
  • Patent number: 10385418
    Abstract: Provided is a grain-oriented electrical steel sheet including a steel sheet having a steel sheet surface in which a groove, which extends in a direction intersecting a rolling direction and of which a groove depth direction matches a sheet thickness direction, is formed. In a case where the groove is seen on a longitudinal groove cross-section including a groove extension direction and the sheet thickness direction, an arithmetic average height Ra of a roughness curve, which constitutes a contour of a groove bottom region of the groove, is 1 ?m to 3 ?m, and an average length RSm of a roughness curve element, which constitutes the contour of the groove bottom region, is 10 ?m to 150 ?m.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: August 20, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Hisashi Mogi, Fumiaki Takahashi, Hideyuki Hamamura, Tatsuhiko Sakai, Hirofumi Imai, Shunsuke Okumura