Patents by Inventor Takuya Kawamura

Takuya Kawamura 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: 11969765
    Abstract: Included are a chute arranged in an inclined manner to allow sorting targets to flow downward, optical detection means for detecting the sorting targets at a detection position, and ejector means for sorting and removing the sorting targets based on a result of detection of the optical detection means. The chute is provided with an optical detection slit in a direction orthogonal to a flow-down direction of the sorting targets, a slit width of the optical detection slit is adjustable, and the optical detection means images the sorting targets flowing downward on the chute with the imaging means at a position where the optical detection slit is provided as the detection position.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: April 30, 2024
    Assignee: SATAKE CORPORATION
    Inventors: Yoichi Kawamura, Takuya Nishida
  • Publication number: 20240096533
    Abstract: The coil component includes a coil, a first core having a first magnetic permeability, and a second core having a second magnetic permeability lower than the first magnetic permeability. The first core and the second core form a magnetic path. The coil forms two or more winding windows. The first core contacts with an entirety of one side line extending in a second direction of each of the winding windows, and protrudes from both ends of one side line of at least one of the winding windows. The second core contacts with three side lines other than the one side line of each of the winding windows. A surface resistance of the first core between two points that are 20 mm away from each other is not less than 5 ? after a high-temperature storage test. A drive frequency of the coil component is not less than 20 kHz.
    Type: Application
    Filed: February 17, 2021
    Publication date: March 21, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Mao KAWAMURA, Hayato TANABE, Naohisa UEHARA, Takashi SOBASHIMA, Keisuke AKAKI, Takuya ENDOU, Yuki ABE, Masahiro KONDO, Norimitsu HOSHI
  • Publication number: 20230042999
    Abstract: A multi-axis robot includes: a robot main body including a head and a movement mechanism that three-dimensionally moves the head; and a work tool attached to the head. The work tool includes: a first link pivotally supported on the head; a second link pivotally supported on a distal end of the first link; a first change mechanism that changes an angle of the first link to a central axis of the head; and a second change mechanism that changes an angle of the second link to the first link.
    Type: Application
    Filed: December 25, 2020
    Publication date: February 9, 2023
    Applicant: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Masataka KOYAMA, Shinsuke HAMATANI, Naohiro OTSUKI, Daiki KUBO, Takuya KAWAMURA
  • Patent number: 11523064
    Abstract: An image processing apparatus comprises a processing unit configured to provide an image containing a first object and a second object, with a lighting effect from a virtual light source, a setting unit configured to set a parameter of the virtual light source; and a designating unit configured to designate the first object and/or the second object, based on a user's operation, wherein, in a case in which the designating unit has designated at least one of the first object and the second object, the first object and the second object are provided with an effect of virtual light from a same direction, and in a case in which the designating means has not designated any object, the first object and the second object are provided with an effect of virtual light from different directions.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: December 6, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takuya Kawamura
  • Patent number: 11171591
    Abstract: A control apparatus sets a value of the field current command and a value of the armature related command in accordance with drive information and the setting information stored in the storage unit; the value of the field current command and the value of the armature related command correspond to the obtained drive information. The control apparatus controls a field current flowing through the field winding to the set value of the field current command, and controls a current flowing through the armature winding or a voltage applied to the armature winding to the set value of the armature related command.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: November 9, 2021
    Assignee: DENSO CORPORATION
    Inventors: Akeru Ishikawa, Takuya Kawamura, Hideaki Nakayama, Koji Irie
  • Publication number: 20210329156
    Abstract: An image processing apparatus comprises a processing unit configured to provide an image containing a first object and a second object, with a lighting effect from a virtual light source, a setting unit configured to set a parameter of the virtual light source; and a designating unit configured to designate the first object and/or the second object, based on a user's operation, wherein, in a case in which the designating unit has designated at least one of the first object and the second object, the first object and the second object are provided with an effect of virtual light from a same direction, and in a case in which the designating means has not designated any object, the first object and the second object are provided with an effect of virtual light from different directions.
    Type: Application
    Filed: April 13, 2021
    Publication date: October 21, 2021
    Inventor: Takuya Kawamura
  • Publication number: 20200235688
    Abstract: A control apparatus sets a value of the field current command and a value of the armature related command in accordance with drive information and the setting information stored in the storage unit; the value of the field current command and the value of the armature related command correspond to the obtained drive information. The control apparatus controls a field current flowing through the field winding to the set value of the field current command, and controls a current flowing through the armature winding or a voltage applied to the armature winding to the set value of the armature related command.
    Type: Application
    Filed: April 2, 2020
    Publication date: July 23, 2020
    Applicant: DENSO CORPORATION
    Inventors: Akeru ISHIKAWA, Takuya KAWAMURA, Hideaki NAKAYAMA, Koji IRIE
  • Patent number: 10396886
    Abstract: According to an embodiment, a relay device includes a reception unit, a collection unit, a determination unit, a rewriting unit, and a transmission unit. The reception unit is configured to receive a wireless frame transmitted between a plurality of communication devices. The collection unit is configured to collect configuration information indicating a configuration of a wireless multi-hop network from the communication devices. The determination unit is configured to determine whether to relay the wireless frame on the basis of the configuration information. the rewriting unit is configured to rewrite a transmission destination address of the wireless frame to an address of the communication device of a relay destination specified on the basis of the configuration information and rewrite a transmission source address of the wireless frame to an address of the own device. The transmission unit is configured to transmit the wireless frame rewritten by the rewriting unit.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: August 27, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takaomi Murakami, Takuya Kawamura
  • Patent number: 10378922
    Abstract: A rotation angle detection apparatus includes a magnet that is provided to a rotating shaft of a rotating body and rotates with the rotating shaft to generate magnetic flux and a magnetic sensor that is provided at a distance from the magnet and detects a magnetic flux interlinked with the magnetic sensor. The rotation angle detection apparatus has a magnet magnetic flux detection circuit that detects a magnet magnetic flux generated from the magnet, a disturbance magnetic flux detection circuit that detects a disturbance magnetic flux, which is a magnetic flux other than the magnet magnetic flux and is interlinked with the magnetic sensor, and a correction circuit that corrects a result of detection of the magnetic sensor based on a result of detection of the magnet magnetic flux detection circuit and a result of detection of the disturbance magnetic flux detection circuit.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: August 13, 2019
    Assignee: DENSO CORPORATION
    Inventors: Takuya Kawamura, Hirofumi Kinjou, Toru Wakimoto, Hideaki Nakayama, Masataka Yoshimura
  • Patent number: 10006784
    Abstract: A correction circuit stores data for obtaining coefficients of a relational expression indicating a relationship between a disturbance magnetic flux and a rotational angle error. Then, the coefficients are obtained from the data for obtaining the coefficients, and a detection result of a magnetic sensor is corrected based on the coefficients obtained, a relational expression, and a detection result of a disturbance magnetic flux detection circuit. Since it is possible to obtain the rotational angle error with respect to the disturbance magnetic flux from the coefficient obtained and the relational expression, it is not necessary to store the data indicating the relationship between the disturbance magnetic flux and the rotational angle error for all of the disturbance magnetic flux value in disturbance magnetic flux regions that may be applied.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: June 26, 2018
    Assignee: DENSO CORPORATION
    Inventors: Takuya Kawamura, Hirofumi Kinjou, Toru Wakimoto, Hideaki Nakayama, Masataka Yoshimura
  • Publication number: 20180145743
    Abstract: According to an embodiment, a relay device includes a reception unit, a collection unit, a determination unit, a rewriting unit, and a transmission unit. The reception unit is configured to receive a wireless frame transmitted between a plurality of communication devices. The collection unit is configured to collect configuration information indicating a configuration of a wireless multi-hop network from the communication devices. The determination unit is configured to determine whether to relay the wireless frame on the basis of the configuration information. the rewriting unit is configured to rewrite a transmission destination address of the wireless frame to an address of the communication device of a relay destination specified on the basis of the configuration information and rewrite a transmission source address of the wireless frame to an address of the own device. The transmission unit is configured to transmit the wireless frame rewritten by the rewriting unit.
    Type: Application
    Filed: July 31, 2017
    Publication date: May 24, 2018
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takaomi MURAKAMI, Takuya KAWAMURA
  • Publication number: 20170363444
    Abstract: A rotation angle detection apparatus includes a magnet that is provided to a rotating shaft of a rotating body and rotates with the rotating shaft to generate magnetic flux and a magnetic sensor that is provided at a distance from the magnet and detects a magnetic flux interlinked with the magnetic sensor. The rotation angle detection apparatus has a magnet magnetic flux detection circuit that detects a magnet magnetic flux generated from the magnet, a disturbance magnetic flux detection circuit that detects a disturbance magnetic flux, which is a magnetic flux other than the magnet magnetic flux and is interlinked with the magnetic sensor, and a correction circuit that corrects a result of detection of the magnetic sensor based on a result of detection of the magnet magnetic flux detection circuit and a result of detection of the disturbance magnetic flux detection circuit.
    Type: Application
    Filed: January 13, 2016
    Publication date: December 21, 2017
    Applicant: DENSO CORPORATION
    Inventors: Takuya KAWAMURA, Hirofumi KINJOU, Toru WAKIMOTO, Hideaki NAKAYAMA, Masataka YOSHIMURA
  • Publication number: 20160373253
    Abstract: A first determining unit determines a period of time during which there is possibility of wiretapping of data present in a data communication channel connected to another communication device. A second determining unit determines, with a length of the period of time as unit of time, size of a cryptographic key used for encrypting data to be transmitted to the other communication device via the data communication channel during each unit of time. A first obtaining unit obtains a first cryptographic key having the size, from a first storing unit storing therein cryptographic keys shared with the other communication device. A recognizing unit recognizes possibility of wiretapping with respect to the data communication channel. Until the possibility of the wiretapping is recognized, a encrypting unit repeatedly encrypts data to be transmitted to the other communication device during each unit of time using the first cryptographic key.
    Type: Application
    Filed: February 16, 2016
    Publication date: December 22, 2016
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takuya KAWAMURA, Yoshimichi TANIZAWA, Yoshihiro OBA
  • Publication number: 20160265942
    Abstract: A correction circuit stores data for obtaining coefficients of a relational expression indicating a relationship between a disturbance magnetic flux and a rotational angle error. Then, the coefficients are obtained from the data for obtaining the coefficients, and a detection result of a magnetic sensor is corrected based on the coefficients obtained, a relational expression, and a detection result of a disturbance magnetic flux detection circuit. Since it is possible to obtain the rotational angle error with respect to the disturbance magnetic flux from the coefficient obtained and the relational expression, it is not necessary to store the data indicating the relationship between the disturbance magnetic flux and the rotational angle error for all of the disturbance magnetic flux value in disturbance magnetic flux regions that may be applied.
    Type: Application
    Filed: March 4, 2016
    Publication date: September 15, 2016
    Applicant: DENSO CORPORATION
    Inventors: Takuya KAWAMURA, Hirofumi KINJOU, Toru WAKIMOTO, Hideaki NAKAYAMA, Masataka YOSHIMURA
  • Patent number: 9225653
    Abstract: According to one embodiment, a server includes a transmitter, a storage, a determination unit and a controller. The transmitter is configured to transmit data using TCP streams. The storage is configured to store a number of TCP streams which the transmitter used in transmitting the data and a maximum value of a bandwidth which the transmitter used in transmitting the data using the number of TCP streams, in association with each other. The determination unit is configured to determine a number of TCP streams, which the transmitter uses in transmitting new data, based on the stored number, the stored maximum value, and a target value of the bandwidth. The controller is configured to update the stored maximum value when a bandwidth used for transmitting the new data using the determined number is larger than the maximum value associated with the stored number which is identical to the determined number.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: December 29, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Kawazoe, Takuya Kawamura
  • Patent number: 9168765
    Abstract: A printing apparatus includes a carriage configured to perform a reciprocating movement while facing a sheet, the carriage being equipped with an inkjet head, and a drying unit configured to apply energy from above the carriage to the sheet so as to dry ink, wherein, when the carriage performs the reciprocating movement, the carriage is reversed at a reversing position where the application of the energy to an end of the sheet or an end of an image formed on the sheet is not blocked by the carriage.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: October 27, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takuya Kawamura
  • Publication number: 20150204964
    Abstract: A radio base station performs wireless communication with a wireless terminal. The radio base station includes a directivity pattern specifying unit, a communication unit, and a signal processor. The directivity pattern specifying unit specifies plural directivity patterns. The communication unit receives a search request frame from the wireless terminal, sends to the wireless terminal a search response frame which is a response to the search request frame, with at least one, specified by the directivity pattern specifying unit, of the directivity patterns, and receives a delivery acknowledgment frame for the search response frame from the wireless terminal with the directivity patterns specified by the directivity pattern specifying unit. The signal processor calculates, for each specified directivity pattern, a radio wave intensity of the delivery acknowledgment frame.
    Type: Application
    Filed: January 16, 2015
    Publication date: July 23, 2015
    Inventors: Tatsuma HIRANO, Cam Ly NGUYEN, Hiroyuki KITAGAWA, Ren SAKATA, Takuya KAWAMURA, Mutsumu SERIZAWA
  • Patent number: 9065881
    Abstract: According to one embodiment, an image relay apparatus includes a reception unit, a determination unit and a transmission unit. The reception unit receives compressed image data from a relay source apparatus. The determination unit determines whether or not the compressed image data is processable through a first path not involving decompression of the compressed image data, based on data on a relay destination apparatus. The transmission unit transfers, to the relay destination apparatus, either the compressed image data processed through the first path or recompressed image data obtained by processing the compressed image data through a second path involving decompression, drawing, and recompression of the compressed image data.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: June 23, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mika Minematsu, Masataka Goto, Takuya Kawamura
  • Patent number: 9026584
    Abstract: According to one embodiment, a server device includes a receiver, an acquisition unit, a difference extracting unit, an estimation unit, a determination unit, a compression unit, and a transmitter. The receiver receives manipulation information from a client device. The acquisition unit acquires a display image on which the manipulation information is reflected. The difference extracting unit extracts a region where pixel information on an image transmitted to the client device is not matched with pixel information on the display image. The estimation unit estimates an elapsed time since the manipulation information is received until the display image is acquired. The determination unit determines image quality, for which a response time is a predetermined value or less, on the basis of the elapsed time. The compression unit generates a compression image in which the image in the region is compressed with the determined image quality. The transmitter transmits the compression image.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: May 5, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Kawazoe, Takuya Kawamura
  • Publication number: 20150085016
    Abstract: A printing apparatus includes a carriage configured to perform a reciprocating movement while facing a sheet, the carriage being equipped with an inkjet head, and a drying unit configured to apply energy from above the carriage to the sheet so as to dry ink, wherein, when the carriage performs the reciprocating movement, the carriage is reversed at a reversing position where the application of the energy to an end of the sheet or an end of an image formed on the sheet is not blocked by the carriage.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 26, 2015
    Inventor: Takuya Kawamura