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: 20160066256
    Abstract: A communication device includes a reception unit, first and second determination units, and a transmission unit. The reception unit receives a search request signal transmitted from another communication device. The first determination unit determines whether the communication device executes a specific protocol. The second determination unit determines whether information indicating the specific protocol is added to the received request signal.
    Type: Application
    Filed: March 31, 2014
    Publication date: March 3, 2016
    Applicant: Canon Kabushiki Kaisha
    Inventor: Tatsuhiko Sakai
  • Patent number: 9221123
    Abstract: A laser processing apparatus includes: a reflection mirror (1, 4) reflecting a laser beam (LA, LB) to an inner or outer surface at an upper edge portion (14a) of a cup (14); a reflection mirror (2, 5) reflecting a part that has passed an outer side of the upper edge portion (14a), of the laser beam (LA, LB) reflected by the reflection mirror (1, 4), to an outer or inner surface of the cup (14); and a rotating pedestal (15) rotating the cup (14) around its center relative to the reflection mirror (1, 4) and the reflection mirror (2, 5).
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: December 29, 2015
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Tatsuhiko Sakai, Hirokazu Yokoya
  • Publication number: 20150373777
    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: Application
    Filed: February 13, 2014
    Publication date: December 24, 2015
    Inventor: Tatsuhiko Sakai
  • Publication number: 20150341819
    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: August 4, 2015
    Publication date: November 26, 2015
    Inventors: Fumihide Goto, Tatsuhiko Sakai
  • Publication number: 20150319601
    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: Application
    Filed: June 17, 2015
    Publication date: November 5, 2015
    Inventors: Tatsuhiko Sakai, Fumihide Goto
  • Patent number: 9143925
    Abstract: A communication apparatus in which it is determined whether a communication parameter setting scheme used to provide a partner apparatus with communication parameters is an authentication code scheme or a non-authentication code scheme. Any one of first communication parameters to wirelessly communicate in a first wireless network and second communication parameters to wirelessly communicate in a second wireless network are selected in accordance with the determined setting scheme. The partner apparatus is provided with the selected communication parameters in accordance with the determined setting scheme.
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: September 22, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tatsuhiko Sakai
  • Patent number: 9139886
    Abstract: In a method for producing a grain-oriented electrical steel sheet, grooves each having a given length and extending in a direction including a direction perpendicular to a transportation direction of the grain-oriented electrical steel sheet are formed at given intervals in the transportation direction by irradiating the surface of the grain-oriented electrical steel sheet with a laser beam while scanning the surface of the grain-oriented electrical steel sheet with the laser beam. Further, in the method for manufacturing a grain-oriented electrical steel sheet, the laser beam is a continuous-wave laser beam having a laser wavelength ? of 1.0 ?m to 2.1 ?m, power density Pd [W/mm2] which is obtained by dividing laser beam intensity P by a focused beam area S is 5×105 W/mm2 or more, and the power density Pd [W/mm2] and scanning speed V [mm/s] of a focused spot of the laser beam on the surface of the grain-oriented electrical steel sheet satisfy a relationship of 0.005×Pd+3000?V?0.005×Pd+40000.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: September 22, 2015
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Tatsuhiko Sakai, Hideyuki Hamamura
  • Patent number: 9125237
    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: September 28, 2009
    Date of Patent: September 1, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Fumihide Goto, Tatsuhiko Sakai
  • Patent number: 9094897
    Abstract: A communication apparatus (receiving apparatus) configured to receive a communication parameter selects, when an access point itself is active as a providing apparatus or the communication apparatus detects an access point (active access point) that is communicatable with an active providing apparatus, the access point as the access point to be connected using wireless connection. If the communication apparatus does not detect an active access point, the communication apparatus selects an access point (setup-completed access point) which is configured with a communication parameter that is different from the one that is set at the time of initialization, as the access point to be connected using wireless connection.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: July 28, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tatsuhiko Sakai
  • Patent number: 9088860
    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: September 28, 2009
    Date of Patent: July 21, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tatsuhiko Sakai, Fumihide Goto
  • Patent number: 9060261
    Abstract: The present invention relates to a communication apparatus that is capable of performing a setting process to share a communication parameter with a communication partner apparatus in multiple setting modes and that is capable of automatically determining the setting mode in which the setting process is performed. The communication apparatus confirms the type of a user interface of the communication partner apparatus and determines the setting mode of the setting process to share the communication parameter with the communication partner apparatus on the basis of the confirmed type of the user interface of the communication partner apparatus and the type of a user interface of the communication apparatus to share the communication parameter with the communication partner apparatus.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: June 16, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tatsuhiko Sakai
  • Patent number: 9049587
    Abstract: Even when multiple providing apparatuses joined in a network are activated as providing apparatuses, a new apparatus can be added to the network without degrading the network security or the ease of use of the providing apparatuses, a apparatus activates an operation as a providing apparatus of a communication-parameter in accordance with the a state notification of an operation as a providing apparatus of a communication-parameter, which is received from another communication apparatus.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: June 2, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tatsuhiko Sakai
  • Patent number: 8900688
    Abstract: To provide a grain oriented electrical steel sheet that can securely suppress propagation of lateral strain, and can make a product even from a portion where the lateral strain occurs. A grain oriented electrical steel sheet of the present invention has a linearly altered portion 14 generated in a glass coating film 12 at one of side edges of a steel sheet 11, in a continuous line or in a discontinuous broken line in a direction parallel with a rolling direction of the steel sheet, and having a composition different from a composition in other portions of the glass coating film. An average value of a deviation angle of a direction of an axis of easy magnetization of crystal grains relative to the rolling direction is 0° or more and 20° or less in a base metal iron portion of the steel sheet 11 at a position along a width direction of the steel sheet, the position corresponding to the linearly altered portion 14.
    Type: Grant
    Filed: May 28, 2012
    Date of Patent: December 2, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Tatsuhiko Sakai, Yoshio Nakamura, Kazuyuki Tashiro, Shohji Nagano, Shuichi Yamazaki, Koji Hirano
  • Patent number: 8891771
    Abstract: Communication parameters can be appropriately set without deteriorating user operability even if roles are not determined in advance when automatically setting the communication parameters. The invention includes a communication method when apparatus C newly joins a network formed of apparatuses A and B. The method is characterized by including a step of causing apparatus B to determine whether it belongs to the network in response to press of a button, and to operate as a provider and notify apparatus A of it upon determining that it belongs to the network, and a step of causing apparatus A to transmit, upon receiving the notification, a search response signal containing information on apparatus B in response to a search signal from apparatus C.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: November 18, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuhiko Sakai, Fumihide Goto, Kenichi Fujii
  • Publication number: 20140301211
    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: June 23, 2014
    Publication date: October 9, 2014
    Inventor: Tatsuhiko Sakai
  • Patent number: 8837339
    Abstract: A communication apparatus confirms a connection state with a terminal apparatus, the information about which is stored in a storage unit, when the communication apparatus is switched from a power saving communication mode to a normal communication mode. When the communication apparatus confirms that all of the terminal apparatuses have disengaged from a network, the communication apparatus ends its operations as a base station, and notifies a user of the disengagement.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: September 16, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tatsuhiko Sakai
  • Publication number: 20140246125
    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: Application
    Filed: May 13, 2014
    Publication date: September 4, 2014
    Applicant: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Tatsuhiko Sakai, Koji Hirano, Satoshi Arai, Yoshiyuki Ushigami
  • Publication number: 20140232883
    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: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Tatsuhiko Sakai
  • Patent number: 8798020
    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: April 22, 2010
    Date of Patent: August 5, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tatsuhiko Sakai
  • Publication number: 20140211026
    Abstract: A communication apparatus is configured to accept input of a condition for selecting a communication apparatus to connect to, receive, from a first communication apparatus that is operating as a base station in a wireless network, information on the first communication apparatus and information on a second communication apparatus that is participating in the wireless network established by the first communication apparatus, and display, from among the first communication apparatus and the second communication apparatus, a communication apparatus or communication apparatuses that meet the condition input via the input unit, based on the received information.
    Type: Application
    Filed: January 23, 2014
    Publication date: July 31, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Tatsuhiko Sakai