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).

  • Patent number: 9839054
    Abstract: A device capability attribute regarding a setting on communication parameters, and provision attribute information indicative of whether or not a communication terminal is in a state that it can provide communication parameters to another communication terminal are stored in advance. The communication terminal, where the device capability attribute has at least a provision capability of the communication parameters, is selected as a provision device. In a case where there are plural communication terminals where the device capability attribute has a communication parameter provision capability, a communication terminal where the device capability attribute has the communication parameter provision capability only is preferentially selected.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: December 5, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuo Moritomo, Kenichi Fujii, Tatsuhiko Sakai, Mitsuhiro Watanabe
  • Patent number: 9832812
    Abstract: A communication apparatus includes a determination unit configured to determine whether the communication apparatus has joined a wireless network established with another communication apparatus prior to start of a predetermined service, and a leaving unit configured to perform processing for leaving the wireless network according to a result of determination by the determination unit when the predetermined service ends.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: November 28, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tatsuhiko Sakai
  • Patent number: 9826447
    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: November 29, 2012
    Date of Patent: November 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tatsuhiko Sakai
  • Patent number: 9807807
    Abstract: A communication apparatus includes an acquisition unit, a determination unit, and a control unit. The acquisition unit acquires capability information on other communication apparatuses in a network. The determination unit determines, based on the capability information acquired by the acquisition unit, whether there is a communication apparatus having a specific function, related to data communication, to be performed after processing to set communication parameters is performed. The control unit perform controls, in response to the determination unit determining that there is a communication apparatus having the specific function, to continue the processing to set the communication parameters, and performs control, in response to the determination unit determining that there is no communication apparatus having the specific function, to terminate the processing to set the communication parameters.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: October 31, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tatsuhiko Sakai
  • Publication number: 20170231017
    Abstract: A device capability attribute regarding a setting on communication parameters, and provision attribute information indicative of whether or not a communication terminal is in a state that it can provide communication parameters to another communication terminal are stored in advance. The communication terminal, where the device capability attribute has at least a provision capability of the communication parameters, is selected as a provision device. In a case where there are plural communication terminals where the device capability attribute has a communication parameter provision capability, a communication terminal where the device capability attribute has the communication parameter provision capability only is preferentially selected.
    Type: Application
    Filed: April 27, 2017
    Publication date: August 10, 2017
    Inventors: KAZUO MORITOMO, Kenichi Fujii, Tatsuhiko Sakai, Mitsuhiro Watanabe
  • Publication number: 20170215070
    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: January 23, 2017
    Publication date: July 27, 2017
    Inventor: Tatsuhiko Sakai
  • Patent number: 9686807
    Abstract: A device capability attribute regarding a setting on communication parameters, and provision attribute information indicative of whether or not a communication terminal is in a state that it can provide communication parameters to another communication terminal are stored in advance. The communication terminal, where the device capability attribute has at least a provision capability of the communication parameters, is selected as a provision device. In a case where there are plural communication terminals where the device capability attribute has a communication parameter provision capability, a communication terminal where the device capability attribute has the communication parameter provision capability only is preferentially selected.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: June 20, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kazuo Moritomo, Kenichi Fujii, Tatsuhiko Sakai, Mitsuhiro Watanabe
  • Publication number: 20170171453
    Abstract: A communication apparatus has a communication control function, which enables the apparatus to operate as a control apparatus that forms a wireless network and controls the wireless network, and has an apparatus function other than the communication control function. The communication apparatus includes a determination unit configured to determine whether priority is to be given to the apparatus function over the communication control function in the case that an instruction to implement the apparatus function is received while the apparatus is implementing the communication control function and operating as the control apparatus, and a control unit configured to control operation of the apparatus such that priority is given to the apparatus function over the communication control function in a case that the determination unit determines that priority is to be given to the apparatus function over the communication control function.
    Type: Application
    Filed: February 24, 2017
    Publication date: June 15, 2017
    Inventors: Tatsuhiko Sakai, Junji Yamamoto
  • Publication number: 20170157706
    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: Application
    Filed: July 3, 2014
    Publication date: June 8, 2017
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Koji HIRANO, Hirofumi IMAI, Hideyuki HAMAMURA, Tatsuhiko SAKAI
  • Patent number: 9659693
    Abstract: A silicon steel sheet (1) containing Si is cold-rolled. Next, a decarburization annealing (3) of the silicon steel sheet (1) is performed so as to cause a primary recrystallization. Next, the silicon steel sheet (1) is coiled so as to obtain a steel sheet coil (31). Next, an annealing (6) of the steel sheet coil (31) is performed through batch processing so as to cause a secondary recrystallization. Next, the steel sheet coil (31) is uncoiled and flattened. Between the cold-rolling and the obtaining the steel sheet coil (31), a laser beam is irradiated a plurality of times at predetermined intervals on a surface of the silicon steel sheet (1) from one end to the other end of the silicon steel sheet (1) along a sheet width direction (2). When the secondary recrystallization is caused, grain boundaries passing from a front surface to a rear surface of the silicon steel sheet (1) along paths of the laser beams are generated.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: May 23, 2017
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Tatsuhiko Sakai, Koji Hirano, Satoshi Arai, Yoshiyuki Ushigami
  • Publication number: 20170136575
    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 an angle between a linear polarization direction and the scanning direction is higher than 45° and equal to or lower than 90°.
    Type: Application
    Filed: July 3, 2014
    Publication date: May 18, 2017
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Koji HIRANO, Hirofumi IMAI, Hideyuki HAMAMURA, Tatsuhiko SAKAI
  • Patent number: 9655150
    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: September 20, 2013
    Date of Patent: May 16, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tatsuhiko Sakai, Kenichi Fujii, Mitsuhiro Watanabe, Kazuo Moritomo
  • Patent number: 9602722
    Abstract: A communication apparatus has a communication control function, which enables the apparatus to operate as a control apparatus that forms a wireless network and controls the wireless network, and has an apparatus function other than the communication control function. The communication apparatus includes a determination unit configured to determine whether priority is to be given to the apparatus function over the communication control function in the case that an instruction to implement the apparatus function is received while the apparatus is implementing the communication control function and operating as the control apparatus, and a control unit configured to control operation of the apparatus such that priority is given to the apparatus function over the communication control function in a case that the determination unit determines that priority is to be given to the apparatus function over the communication control function.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: March 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuhiko Sakai, Junji Yamamoto
  • Publication number: 20170048753
    Abstract: A communication procedure for providing or receiving communication parameters can be performed by an easy operation even between devices having both a base station function and a slave station function. A communication device of the present invention determines a role of a device when performing a predetermined communication procedure for providing or receiving communication parameters, and selects operating as a base station or operating as a slave station based on the determined role. The communication device selects based on the determined role operating as a providing device or operating as a receiving device.
    Type: Application
    Filed: October 31, 2016
    Publication date: February 16, 2017
    Inventor: Tatsuhiko Sakai
  • Publication number: 20170041774
    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: Application
    Filed: October 20, 2016
    Publication date: February 9, 2017
    Inventors: Tatsuhiko Sakai, Kenichi Fujii, Mitsuhiro Watanabe, Kazuo Moritomo
  • Publication number: 20170026828
    Abstract: A communication apparatus includes a transmission unit that, when providing communication parameters for communication in a wireless network, transmits an authentication request message for requesting authentication by unicast in a case where a transmission destination of the authentication request message is identified and transmits the authentication request message by broadcast in a case where a transmission destination of the authentication request message is not identified, a reception unit that receives a response message responding to the authentication request message from another communication apparatus, and a provision unit that provides the another communication apparatus with the communication parameters upon receipt of the response message.
    Type: Application
    Filed: July 18, 2016
    Publication date: January 26, 2017
    Inventor: Tatsuhiko Sakai
  • Patent number: 9516517
    Abstract: A communication procedure for providing or receiving communication parameters can be performed by an easy operation even between devices having both a base station function and a slave station function. A communication device of the present invention determines a role of a device when performing a predetermined communication procedure for providing or receiving communication parameters, and selects operating as a base station or operating as a slave station based on the determined role. The communication device selects based on the determined role operating as a providing device or operating as a receiving device.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: December 6, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tatsuhiko Sakai
  • Publication number: 20160119579
    Abstract: A communication apparatus includes an acquisition unit that acquires, from another communication apparatus, information of a first service that the another communication apparatus can provide, a storage unit that stores state information indicating whether the communication apparatus is capable of providing the second service, a communication control unit that establishes a connection for data communication between the communication apparatus and the another communication apparatus for carrying out the first service or the second service, and a setting unit that sets the state information stored by the storage unit so that the state information indicates that the communication apparatus is incapable of providing the second service in response to issuance of an instruction to carry out the first service.
    Type: Application
    Filed: October 15, 2015
    Publication date: April 28, 2016
    Inventor: Tatsuhiko Sakai
  • Patent number: 9313715
    Abstract: A communication apparatus includes: providing means for providing communication parameters to a receiving apparatus to be provided with communication parameters; determination means for determining whether there are a plurality of providing apparatuses that provide the communication parameters; and notifying means for, in case the determination means determines that there are the plurality of apparatuses, notifying the receiving apparatus that the providing means have already provided with the communication parameters of a notification that instructs the apparatus to halt the usage of the provided communication parameters.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: April 12, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tatsuhiko Sakai
  • Patent number: 9307387
    Abstract: Even if the roles of apparatuses are not decided in advance when automatically setting communication parameters, communication parameter setting processing and network joining processing are appropriately executed without requiring the user to select the roles of apparatuses. The invention is characterized by a communication method for a communication apparatus, including a first search step of searching for a communication partner apparatus on a predetermined communication channel, a second search step of searching for a communication partner apparatus on all communication channels available for communication, and a search control step of searching for a communication partner apparatus using the first and second search steps.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: April 5, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tatsuhiko Sakai, Fumihide Goto