Patents by Inventor Akihiro Okamura

Akihiro Okamura 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: 12040729
    Abstract: A motor control device includes an inverter circuit to convert a DC power source voltage into a three-phase AC voltage and supply the three-phase AC voltage to the three-phase motor and a controller to generate three-phase PWM signals based on three-phase duty command values updated at a predetermined updating cycle and control the inverter circuit based on the three-phase PWM signals. The controller is configured or programmed to shift, when duty command values of at least two phases of the three-phase duty command values updated at a first update timing are the same, the duty command value of one phase of the duty command values of the two phases by a predetermined shift amount and shifts a duty command value of the one phase of the three-phase duty command values updated at a second update timing which is an update timing next to the first update timing by the shift amount in a direction opposite to a shift direction at the first update timing.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: July 16, 2024
    Assignees: NIDEC CORPORATION, NIDEC ELESYS CORPORATION
    Inventors: Takashi Koikegami, Isao Sanbonmatsu, Akihiro Okamura, Tomohiro Fukumura, Kotaro Kataoka
  • Publication number: 20220416712
    Abstract: A motor control device includes an inverter circuit to convert a DC power source voltage into a three-phase AC voltage and supply the three-phase AC voltage to the three-phase motor and a controller to generate three-phase PWM signals based on three-phase duty command values updated at a predetermined updating cycle and control the inverter circuit based on the three-phase PWM signals. The controller is configured or programmed to shift, when duty command values of at least two phases of the three-phase duty command values updated at a first update timing are the same, the duty command value of one phase of the duty command values of the two phases by a predetermined shift amount and shifts a duty command value of the one phase of the three-phase duty command values updated at a second update timing which is an update timing next to the first update timing by the shift amount in a direction opposite to a shift direction at the first update timing.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 29, 2022
    Inventors: Takashi KOIKEGAMI, Isao SANBONMATSU, Akihiro OKAMURA, Tomohiro FUKUMURA, Kotaro KATAOKA
  • Patent number: 9762771
    Abstract: The storage section of the multifunction peripheral stores location information containing a storage location of software which transmits a control command whose execution is permissible. The execution permission judging section of the multifunction peripheral includes (I) a storage location detecting section which detects a storage location of software which has participated in a transmission of a received control command and (II) a command permitting/prohibiting section which (i) prohibits execution of the received control command when a storage location indicated by the location information is not detected by the storage location detecting section but (ii) permits execution of the received control command when the storage location is detected by the storage location detecting section.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: September 12, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Akihiro Okamura
  • Publication number: 20160156809
    Abstract: The storage section of the multifunction peripheral stores location information containing a storage location of software which transmits a control command whose execution is permissible. The execution permission judging section of the multifunction peripheral includes (I) a storage location detecting section which detects a storage location of software which has participated in a transmission of a received control command and (II) a command permitting/prohibiting section which (i) prohibits execution of the received control command when a storage location indicated by the location information is not detected by the storage location detecting section but (ii) permits execution of the received control command when the storage location is detected by the storage location detecting section.
    Type: Application
    Filed: September 18, 2015
    Publication date: June 2, 2016
    Inventor: Akihiro OKAMURA
  • Patent number: 9170762
    Abstract: The storage section of the multifunction peripheral stores location information containing a storage location of software which transmits a control command whose execution is permissible. The execution permission judging section of the multifunction peripheral includes (I) a storage location detecting section which detects a storage location of software which has participated in a transmission of a received control command and (II) a command permitting/prohibiting section which (i) prohibits execution of the received control command when a storage location indicated by the location information is not detected by the storage location detecting section but (ii) permits execution of the received control command when the storage location is detected by the storage location detecting section.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: October 27, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Akihiro Okamura
  • Publication number: 20140233054
    Abstract: The storage section of the multifunction peripheral stores location information containing a storage location of software which transmits a control command whose execution is permissible. The execution permission judging section of the multifunction peripheral includes (I) a storage location detecting section which detects a storage location of software which has participated in a transmission of a received control command and (II) a command permitting/prohibiting section which (i) prohibits execution of the received control command when a storage location indicated by the location information is not detected by the storage location detecting section but (ii) permits execution of the received control command when the storage location is detected by the storage location detecting section.
    Type: Application
    Filed: April 28, 2014
    Publication date: August 21, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Akihiro OKAMURA
  • Patent number: 8751764
    Abstract: The storage section of the multifunction peripheral stores location information containing a storage location of software which transmits a control command whose execution is permissible. The execution permission judging section of the multifunction peripheral includes (I) a storage location detecting section which detects a storage location of software which has participated in a transmission of a received control command and (II) a command permitting/prohibiting section which (i) prohibits execution of the received control command when a storage location indicated by the location information is not detected by the storage location detecting section but (ii) permits execution of the received control command when the storage location is detected by the storage location detecting section.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: June 10, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Akihiro Okamura
  • Patent number: 8605331
    Abstract: A judgment apparatus 2 for judging the possibility of image processing in an image processing apparatus 1 transmits setting item information indicating setting items to be used for judging the possibility of image processing to the image processing apparatus 1. The image processing apparatus 1 transmits setting information indicating settings corresponding to the setting items indicated by the setting item information to the judgment apparatus 2 at the time of image processing, and the judgment apparatus 2 judges the possibility of image processing on the basis of the setting information. The setting information transmitted by the image processing apparatus 1 does not indicate all the settings required for image processing but indicates settings corresponding to the setting items specified by the setting item information, whereby the amount of the data of the setting information is reduced.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: December 10, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Akihiro Okamura
  • Patent number: 8335846
    Abstract: The multi-functional peripheral judges whether or not the last display screen at the time of logout is usable as the initial display screen at the time of next login. Then, when the last display screen at the time of logout is not usable as the initial display screen at the time of next login, not information to specify the last display screen at the time of logout but a predetermined screen information is set to be transmitted to an authentication server. The authentication server manages information to specify the last display screen given from a multi-functional peripheral, and notifies the multi-functional peripheral of the last display screen information of the user to display the screen on the multi-functional peripheral when a user logs in the multi-functional peripheral next time.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: December 18, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Akihiro Okamura
  • Publication number: 20120102283
    Abstract: The storage section of the multifunction peripheral stores location information containing a storage location of software which transmits a control command whose execution is permissible. The execution permission judging section of the multifunction peripheral includes (I) a storage location detecting section which detects a storage location of software which has participated in a transmission of a received control command and (II) a command permitting/prohibiting section which (i) prohibits execution of the received control command when a storage location indicated by the location information is not detected by the storage location detecting section but (ii) permits execution of the received control command when the storage location is detected by the storage location detecting section.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 26, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Akihiro OKAMURA
  • Publication number: 20110261374
    Abstract: A judgment apparatus 2 for judging the possibility of image processing in an image processing apparatus 1 transmits setting item information indicating setting items to be used for judging the possibility of image processing to the image processing apparatus 1. The image processing apparatus 1 transmits setting information indicating settings corresponding to the setting items indicated by the setting item information to the judgment apparatus 2 at the time of image processing, and the judgment apparatus 2 judges the possibility of image processing on the basis of the setting information. The setting information transmitted by the image processing apparatus 1 does not indicate all the settings required for image processing but indicates settings corresponding to the setting items specified by the setting item information, whereby the amount of the data of the setting information is reduced.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 27, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Akihiro Okamura
  • Publication number: 20110055366
    Abstract: The multi-functional peripheral judges whether or not the last display screen at the time of logout is usable as the initial display screen at the time of next login. Then, when the last display screen at the time of logout is not usable as the initial display screen at the time of next login, not information to specify the last display screen at the time of logout but a predetermined screen information is set to be transmitted to an authentication server. The authentication server manages information to specify the last display screen given from a multi-functional peripheral, and notifies the multi-functional peripheral of the last display screen information of the user to display the screen on the multi-functional peripheral when a user logs in the multi-functional peripheral next time.
    Type: Application
    Filed: August 18, 2010
    Publication date: March 3, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Akihiro Okamura
  • Patent number: 7476995
    Abstract: A busbar (10) has a plurality of straight portions (14) circumferentially arranged at intervals. Several such busbars (10) are tied at a plurality of circumferential spaced positions by connecting the straight positions (14) in parallel with one another. The, the busbars (10) can be positioned with high precision and will not be circumferentially displaced from each other. This can avoid the deviation of intervals between the tabs (16) and those between terminals (18) from correct ones.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: January 13, 2009
    Assignees: Sumitomo Wiring Systems, Ltd., Honda Motor Co., Ltd.
    Inventors: Takahiro Uchiyama, Izumi Suzuki, Masashi Inoue, Tatsuro Horie, Akihiro Okamura
  • Patent number: 7193345
    Abstract: A collection-distribution ring comprises three busbars, each having a circular ring shape, which are integrally connected together with prescribed distances therebetween by an insulating resin. Coil connection terminals project inwardly in a radial direction and are alternately arranged in relation to the three busbars. External terminals project outwardly in the radial direction and are arranged to adjoin together at the prescribed position. These terminals are all exposed from surfaces of the insulating resin. A stator comprises the prescribed number of stator units that are arranged in a circumferential direction and are assembled together with the collection-distribution ring. Each stator unit comprises a core unit realizing magnetic teeth, an insulating member, and a coil. An outer terminal member electrically connects a first end of the coil and the coil connection terminal, and an inner terminal member provides electrical connections between second ends of the adjacent coils.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: March 20, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventors: Satoru Shinzaki, Tatsuro Horie, Kenji Fukuda, Akihiro Okamura
  • Patent number: 7164217
    Abstract: An electric motor lead frame for connecting motor coils of the same phase is formed integrally by a linear conductor. The linear conductor includes at least a single conducting wire and has terminal portions formed by bending for connection with winding ends of motor coils.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: January 16, 2007
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Akira Kabasawa, Kazunari Takahashi, Akihiro Okamura
  • Publication number: 20070004249
    Abstract: A busbar (10) has a plurality of straight portions (14) circumferentially arranged at intervals. Several such busbars (10) are tied at a plurality of circumferential spaced positions by connecting the straight positions (14) in parallel with one another. The, the busbars (10) can be positioned with high precision and will not be circumferentially displaced from each other. This can avoid the deviation of intervals between the tabs (16) and those between terminals (18) from correct ones.
    Type: Application
    Filed: June 28, 2006
    Publication date: January 4, 2007
    Applicants: Sumitomo Wiring Systems, Ltd., HONDA MOTOR CO., LTD.
    Inventors: Takahiro Uchiyama, Izumi Suzuki, Masashi Inoue, Tatsuro Horie, Akihiro Okamura
  • Patent number: 7151334
    Abstract: A permanent magnet type rotor comprises an inner member 2 having an outer ring portion 21; an approximately annular outer member 1 having soft magnetism and an inner circumference contacting with an outer circumference of the outer ring portion; and plural permanent magnets 3 disposed at equal intervals on the outer circumference of the outer member toward the circumferential direction. At least one of the inner member 2 and the outer member 1 is made from a sintered material, and the inner member 2 and the outer member 1 are mutually sintered and bonded. Thickness and weight of a dynamotor itself can be reduced and high output and high efficiency can be achieved.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: December 19, 2006
    Assignees: Hitachi Powdered Metals Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kazuo Asaka, Tomoaki Arakawa, Tsuyoshi Kagaya, Satoru Shinzaki, Hiromitsu Sato, Kenji Fukuda, Hirohisa Ogawa, Tatsuro Horie, Akihiro Okamura, Katsuaki Sato, Toshiyasu Komatsu, Youichi Nakahara
  • Publication number: 20060138884
    Abstract: An electric motor lead frame for connecting motor coils of the same phase is formed integrally by a linear conductor. The linear conductor includes at least a single conducting wire and has terminal portions formed by bending for connection with winding ends of motor coils.
    Type: Application
    Filed: February 23, 2006
    Publication date: June 29, 2006
    Inventors: Akira Kabasawa, Kazunari Takahashi, Akihiro Okamura
  • Patent number: 7045920
    Abstract: An interconnection assembly has phase parts for U phase, V phase and W phase. The phase parts each are of a plurality of interconnection assembly parts that are connected in the form of a ring and include a conductor section to which a motor coil wire is connected, the conductor section being formed by stripping fluororesin insulation at a predetermined position, and the phase parts are partially fixedly bundled.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: May 16, 2006
    Assignees: Hitachi Cable, Ltd., Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Katsuaki Ohuchi, Katsuo Endo, Hideo Matsuo, Akira Kabasawa, Akihiro Okamura, Kazunari Takahashi
  • Patent number: 7034419
    Abstract: An electric motor lead frame for connecting motor coils of the same phase is formed integrally by a linear conductor. The linear conductor includes at least a single conducting wire and has terminal portions formed by bending for connection with winding ends of motor coils.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: April 25, 2006
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Akira Kabasawa, Kazunari Takahashi, Akihiro Okamura