Patents by Inventor Atsushi Takahashi

Atsushi Takahashi 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: 11303238
    Abstract: A motor control device includes a command current derivation unit that derives a command current vector based on a command torque for a brushless motor, a phase difference derivation unit that derives a phase difference between a direction of a real d-axis of rotating coordinates of vector control and a direction of an estimated d-axis thereof, a change unit that changes a direction of the command current vector derived by the command current derivation unit according to the phase difference, and a drive control unit that drives the brushless motor based on the command current vector whose direction is changed by the change unit.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: April 12, 2022
    Assignee: ADVICS CO., LTD.
    Inventor: Atsushi Takahashi
  • Patent number: 11300618
    Abstract: A switch failure detection device includes switches provided on branch paths, current detection units provided on the branch paths, the current detection units being configured to output a current detection signal, a storage unit configured to store an initial value of the current detection signal, the initial value being output from the current detection units, a switch control unit to turn off one of the plurality of switches one by one with at least another one of the plurality of switches being turned on and a first failure detection unit configured to compare the initial value and a value of a first current detection signal output from a corresponding one of the current detection units when the one of the switches is turned off, the first failure detection unit being further configured to detect a first failure of the plurality of switches based on a result of the comparison.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: April 12, 2022
    Assignee: Yazaki Corporation
    Inventor: Atsushi Takahashi
  • Patent number: 11298908
    Abstract: A lid forming device of a cardboard box using a first flap with a slit and a second flap to be extended after being bent into a mountain shape is disclosed. The lid forming device includes first and second folding mechanisms. The fist folding mechanism folds the first flap in a direction of closing the opening. The second folding mechanism bends the second flap into a mountain shape and inserts part of the second flap into the slit of the first flap while extending the second flap. The second folding mechanism includes first and second retaining units. The first retaining unit retains a first face of the second flap located between a free end of the second flap and a bend line set beforehand in the second flap. The second retaining unit retains a second face of the second flap located between an anchored end and the bend line.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: April 12, 2022
    Assignee: ISHIDA CO., LTD.
    Inventors: Yuichi Nakamura, Tatsuya Iwasa, Atsushi Takahashi, Satoshi Tatsukawa, Satoshi Nishitsuji, Tatsuya Arimatsu, Koji Ono
  • Publication number: 20220105830
    Abstract: A MPU controls a changeover switch, which is an FET switch that connects a main battery and a sub-battery having a low rated voltage. The changeover switch is set to an ON state in a case where a potential difference, which is a difference between a voltage of the main battery and a voltage of the sub-battery, is equal to or greater than a positive first predetermined value. A PWM signal is output to a driver to cause the changeover switch to be in a half-ON state in a case where the potential difference is less than the first predetermined value and is greater than a second predetermined value equal to or less than 0. The changeover switch is set to an OFF state in a case where the potential difference is equal to or less than the second predetermined value.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 7, 2022
    Applicant: Yazaki Corporation
    Inventor: Atsushi Takahashi
  • Patent number: 11284232
    Abstract: A vehicle control system includes: a vehicle near field communication unit that communicates via a near field communication path; a vehicle network communication unit that communicates via a global communication path; a control ECU; a transmission control unit that transmits control commands received by the vehicle near field communication unit and the vehicle network communication unit to the control ECU that controls actions of the vehicle; and a control command detection unit that detects whether or not there are a plurality of same control commands received within a prescribed time. When the control command detection unit detects a plurality of control commands received within the prescribed time, the transmission control unit transmits the control commands in order according to a prescribed priority order, and the control ECU processes the control commands received from the transmission control unit in a received order to control the actions of the vehicle.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: March 22, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masahito Watanabe, Kazuhiro Matsuoka, Nobuharu Karasawa, Nobumasa Toyoshima, Atsushi Takahashi, Kenichi Shimizu, Akira Saita, Hideyuki Sako, Hiroyuki Hayashi
  • Patent number: 11282713
    Abstract: In one embodiment, a method of manufacturing a semiconductor device includes forming a first film on a substrate. The method further includes etching the first film with first gas including carbon and fluorine to form a concave portion in the first film and form a second film in the concave portion. The method further includes treating the second film by using the second film to second gas or second liquid, wherein the second film is treated without plasma.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: March 22, 2022
    Assignee: Kioxia Corporation
    Inventor: Atsushi Takahashi
  • Publication number: 20220076961
    Abstract: In one embodiment, a method of manufacturing a semiconductor device includes forming a first film on a substrate. The method further includes etching the first film with first gas including carbon and fluorine to form a concave portion in the first film and form a second film in the concave portion. The method further includes treating the second film by using the second film to second gas or second liquid, wherein the second film is treated without plasma.
    Type: Application
    Filed: February 11, 2021
    Publication date: March 10, 2022
    Applicant: Kioxia Corporation
    Inventor: Atsushi TAKAHASHI
  • Patent number: 11237062
    Abstract: A temperature detection device according to the present invention can improve assembling workability to a coil. A temperature detection device 1 includes a temperature sensor 10 that includes a thermosensitive element 111 detecting temperature of a coil 8, a holder 20 that holds the temperature sensor 10 and positions the coil 8 with respect to the temperature sensor 10, and a clip 30 as an elastic body configured to sandwich the temperature sensor 10 and the coil 8 that are positioned by the holder 20. The clip 30 is movable to an attachment position where the clip 30 is attached to the holder 20 to sandwich the temperature sensor 10 and the coil 8, and a separated position where the clip 30 is separated from the temperature sensor 10 when the coil 8 is positioned with respect to the temperature sensor 10 by the holder 20.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: February 1, 2022
    Assignee: SHIBAURA ELECTRONICS CO., LTD.
    Inventors: Hiroaki Akaba, Takamasa Yoshihara, Atsushi Takahashi
  • Publication number: 20220024203
    Abstract: An object of the present invention is to bring a print head into a liquid ejectable state while reducing waste ink. The present invention is a printing apparatus including: a tank in which liquid is stored; a print head that comprises an ejection port surface on which an ejection port is formed, the ejection port ejecting the liquid which is supplied from the tank; a cap mechanism that caps the ejection port surface of the print head; a timer that counts a time during which the ejection port surface is capped; and a circulation unit configured to circulate the liquid in a circulation path including the tank and the print head, and in a case where the timer counts a predetermined time, the circulation unit circulates the liquid.
    Type: Application
    Filed: October 8, 2021
    Publication date: January 27, 2022
    Inventors: Takuya Fukasawa, Takatoshi Nakano, Atsushi Takahashi, Yoshinori Nakagawa
  • Publication number: 20220011703
    Abstract: A glossiness inspection device includes: an illumination device that emits irradiation light; a light receiving device that receives reflected light of the irradiation light reflected by a glossiness detection target and outputs a light reception detection signal according to an amount of the received light; a correction plate that includes at least a first gloss region and a second gloss region; a dimmer that adjusts an amount of the irradiation light; a detection signal adjuster that adjusts a gain for amplifying the light reception detection signal; an irradiation position controller that selectively irradiates the first gloss region and the second gloss region with the irradiation light; and a hardware processor that adjusts at least one of the amount of the irradiation light, an offset of the detection signal adjuster, a characteristic straight line for calculating a glossiness, or a calculated glossiness.
    Type: Application
    Filed: June 14, 2021
    Publication date: January 13, 2022
    Applicant: KONICA MINOLTA, INC.
    Inventors: Atsushi TAKAHASHI, Hitoshi ASANO, Yumiko IZUMIYA, Hirotada SEKI, Akimasa ISHIKAWA
  • Patent number: 11220080
    Abstract: A cardboard box erector that folds four flaps provided on edges of an opening of a cardboard box so as to surround the opening is disclosed. The four flaps include a locking flap folded last among the four flaps. The cardboard box erector includes a folding unit configured to fold each of the four flaps in a predetermined order to close the opening, and a pushing unit configured to perform an action to push the locking flap inside the cardboard box and pull the locking flap back. The pushing unit has a suction unit configured to such and hold the locking flap.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: January 11, 2022
    Assignee: ISHIDA CO., LTD.
    Inventors: Tatsuya Iwasa, Atsushi Takahashi
  • Patent number: 11214709
    Abstract: A polyamideimide resin having isocyanate groups at the terminals, wherein at least a portion of the isocyanate groups are blocked with an ether group-containing cyclic amine.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: January 4, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Yasuyuki Saito, Atsushi Takahashi, Yuta Harada
  • Publication number: 20210402792
    Abstract: Ink is circulated through a circulation flow path between a print head and an ink tank. Detection operation for detecting an ink ejection state in an ejection opening in the print head is performed. The ink circulation and the detection operation are simultaneously performed by performing the detection operation in response to a start of the ink circulation.
    Type: Application
    Filed: September 10, 2021
    Publication date: December 30, 2021
    Inventors: Takuya Fukasawa, Yuhei Oikawa, Takatoshi Nakano, Yoshinori Nakagawa, Atsushi Takahashi
  • Patent number: 11198290
    Abstract: An object of the present invention is to bring a print head into a liquid ejectable state while reducing waste ink. The present invention is a printing apparatus including: a tank in which liquid is stored; a print head that comprises an ejection port surface on which an ejection port is formed, the ejection port ejecting the liquid which is supplied from the tank; a cap mechanism that caps the ejection port surface of the print head; a timer that counts a time during which the ejection port surface is capped; and a circulation unit configured to circulate the liquid in a circulation path including the tank and the print head, and in a case where the timer counts a predetermined time, the circulation unit circulates the liquid.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: December 14, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takuya Fukasawa, Takatoshi Nakano, Atsushi Takahashi, Yoshinori Nakagawa
  • Publication number: 20210362502
    Abstract: Provided are an inkjet printing apparatus and a recovery method capable of suppressing ink thickening in the ejection openings in the suction process for the ejection openings. A vacuum wiper is moved being in contact with the ejection opening surface of the print head to perform a vacuum wiping process for the arrayed ejection openings sequentially. Ink is circulated in flow paths including the flow paths communicating with the ejection openings for which the vacuum wiping process has been finished.
    Type: Application
    Filed: August 10, 2021
    Publication date: November 25, 2021
    Inventors: Yoshinori Nakagawa, Takatoshi Nakano, Atsushi Takahashi, Takuya Fukasawa
  • Publication number: 20210364364
    Abstract: A temperature detection device according to the present invention can improve assembling workability to a coil. A temperature detection device 1 includes a temperature sensor 10 that includes a thermosensitive element 111 detecting temperature of a coil 8, a holder 20 that holds the temperature sensor 10 and positions the coil 8 with respect to the temperature sensor 10, and a clip 30 as an elastic body configured to sandwich the temperature sensor 10 and the coil 8 that are positioned by the holder 20. The clip 30 is movable to an attachment position where the clip 30 is attached to the holder 20 to sandwich the temperature sensor 10 and the coil 8, and a separated position where the clip 30 is separated from the temperature sensor 10 when the coil 8 is positioned with respect to the temperature sensor 10 by the holder 20.
    Type: Application
    Filed: January 25, 2019
    Publication date: November 25, 2021
    Inventors: Hiroaki Akaba, Takamasa Yoshihara, Atsushi Takahashi
  • Publication number: 20210367541
    Abstract: A motor control device includes a current acquisition unit that acquires a limit current allowed to flow from a battery to a brushless motor, a voltage acquisition unit that acquires a power supply voltage applied from the battery to the brushless motor, and a command current determination unit that determines a d-axis command current and a q-axis command current. The command current determination unit determines the d-axis command current and the q-axis command current based on a power limit circle which is a current characteristic on a d-axis and a q-axis based on an inner product of a voltage vector and a current vector and a voltage limit circle which is a current characteristic on the d-axis and the q-axis based on the power supply voltage and an angular velocity of the brushless motor.
    Type: Application
    Filed: September 24, 2019
    Publication date: November 25, 2021
    Applicant: ADVICS CO., LTD.
    Inventor: Atsushi TAKAHASHI
  • Publication number: 20210325810
    Abstract: The present invention is directed to detect gloss of a toner image from which the influence of heat applied to a sheet by a fixing unit is eliminated. An image forming device according to an aspect of the invention includes: a gloss sensor irradiating a recording medium on which a toner image is formed and fixed with light, measuring reflectance of reflection light from the recording medium, and measuring gloss of the toner image on the basis of the reflectance; and a gloss correcting unit correcting the gloss of the toner image measured by the gloss sensor in a situation that the temperature of the toner image fixed on the recording medium is assumed to be higher than a predetermined threshold temperature or in the case where it is determined that the temperature of the toner image is higher than the predetermined threshold temperature.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 21, 2021
    Applicant: KONICA MINOLTA, INC.
    Inventors: Akimasa ISHIKAWA, Atsushi TAKAHASHI, Hitoshi ASANO, Yumiko IZUMIYA, Hirotada SEKI
  • Publication number: 20210328534
    Abstract: A motor control device includes a command current derivation unit that derives a command current vector based on a command torque for a brushless motor, a phase difference derivation unit that derives a phase difference between a direction of a real d-axis of rotating coordinates of vector control and a direction of an estimated d-axis thereof, a change unit that changes a direction of the command current vector derived by the command current derivation unit according to the phase difference, and a drive control unit that drives the brushless motor based on the command current vector whose direction is changed by the change unit.
    Type: Application
    Filed: September 24, 2019
    Publication date: October 21, 2021
    Applicant: ADVICS CO., LTD.
    Inventor: Atsushi TAKAHASHI
  • Patent number: 11143871
    Abstract: An image display apparatus that includes a first light collecting-reflecting device (10, 11) which image light (L0) from an image forming apparatus enters, and a second light collecting-reflecting device (20, 21) which second light (L2), of the image light, having passed through the first light collecting-reflecting device enters. The first light collecting-reflecting device has transmission action and light collecting-reflecting action with respect to the image light. The first light collecting-reflecting device collects and reflects first light (L1), of the entering image light, toward a first conversion position in a viewer's eye (201). The second light collecting-reflecting device has at least the light collecting-reflecting action with respect to the image light. The second light collecting-reflecting device causes the second light to reenter the first light collecting-reflecting device and collects and reflects the second light toward a second conversion position.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: October 12, 2021
    Assignee: SONY CORPORATION
    Inventors: Shingo Ohkawa, Ryo Ogawa, Mariko Nishiyama, Atsushi Takahashi