Patents by Inventor Hideki Sekiguchi

Hideki Sekiguchi 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: 20210221379
    Abstract: There is provided a control device for vehicles which can improve quietness and fuel economy, while maintaining high responsiveness to acceleration of a vehicle. Therefore, the control device 100 for vehicles includes a gear ratio control unit 10 that controls a gear ratio of a vehicle V, and a determination unit 20 that determines whether or not there is an acceleration limit of the vehicle V. The gear ratio control unit 10 is configured to limit an increase in gear ratio Rt, when the determination unit 20 determines that there is an acceleration limit.
    Type: Application
    Filed: June 19, 2019
    Publication date: July 22, 2021
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Yasuaki SATO, Hiroyuki OOIWA, Hideki SEKIGUCHI, Hiroyuki SAKAMOTO, Shogo MIYAMOTO
  • Patent number: 11059374
    Abstract: The present invention is to make it possible to effectively recover regenerative energy and improve a fuel efficiency. Thus, there is provided an HCM 50 of a hybrid vehicle, in which the hybrid vehicle includes: an engine; a drive wheel to which a driving force of the engine is transmittable; a motor to which the driving force from the engine is transmittable and which is capable of transmitting a driving force to the drive wheel; and a battery which supplies power for driving the motor and stores power generated by the motor.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: July 13, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Hiroyuki Sakamoto, Hideki Sekiguchi, Yasuaki Sato
  • Patent number: 11022214
    Abstract: Provided is a transmission control device which can improve drivability in an acceleration section even while taking a reduction of fuel consumption in a deceleration section into consideration. The transmission control device (transmission controller) which controls a transmission in a running control of a vehicle includes a shift timing calculation unit which determines an acceleration position at which the vehicle accelerates on the basis of a target speed pattern generated from external information, a target gear ratio calculation unit which determines a required gear ratio which is required at the acceleration position, and a gear ratio overwriting command unit which outputs a command of overwriting the gear ratio such that the gear ratio at the acceleration position approaches the required gear ratio.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: June 1, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Yasuaki Sato, Hideki Sekiguchi, Hiroyuki Sakamoto
  • Publication number: 20210080001
    Abstract: Provided is a transmission control device which can improve drivability in an acceleration section even while taking a reduction of fuel consumption in a deceleration section into consideration. The transmission control device (transmission controller) which controls a transmission in a running control of a vehicle includes a shift timing calculation unit which determines an acceleration position at which the vehicle accelerates on the basis of a target speed pattern generated from external information, a target gear ratio calculation unit which determines a required gear ratio which is required at the acceleration position, and a gear ratio overwriting command unit which outputs a command of overwriting the gear ratio such that the gear ratio at the acceleration position approaches the required gear ratio.
    Type: Application
    Filed: June 19, 2018
    Publication date: March 18, 2021
    Inventors: Yasuaki SATO, Hideki SEKIGUCHI, Hiroyuki SAKAMOTO
  • Patent number: 10690243
    Abstract: The present invention relates to a range switching device for performing range switching of an automatic transmission by using an actuator that is electrically controlled to be driven, and to a switching method thereof. A range switching device of an automatic transmission that can reduce collision noise occurring from a detent mechanism and a switching method thereof are provided. The automatic transmission includes a detent mechanism that presses a roller against a groove by using a spring, moves the roller between grooves, and determines a range position of the transmission, and a range of the transmission is changed by driving the detent mechanism by the actuator. In changing a range position of the transmission, the actuator is braked in accordance with a drawing force of the spring into a groove so that energy of the velocity when the roller reaches a target stop position can be controlled to approach zero.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: June 23, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Yuji Noto, Hideki Sekiguchi
  • Publication number: 20200189557
    Abstract: The present invention is to make it possible to effectively recover regenerative energy and improve a fuel efficiency. Thus, there is provided an HCM 50 of a hybrid vehicle, in which the hybrid vehicle includes: an engine; a drive wheel to which a driving force of the engine is transmittable; a motor to which the driving force from the engine is transmittable and which is capable of transmitting a driving force to the drive wheel; and a battery which supplies power for driving the motor and stores power generated by the motor.
    Type: Application
    Filed: January 29, 2018
    Publication date: June 18, 2020
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Hiroyuki SAKAMOTO, Hideki SEKIGUCHI, Yasuaki SATO
  • Patent number: 10449794
    Abstract: A method for forming an image and a protective layer on a transfer receiving material, by thermal transfer, including supplying a thermal transfer sheet between a thermal head of a thermal printer and a platen roller, wherein the thermal transfer sheet includes color material layers and a transferable protective layer arranged in a face serial manner, and wherein the thermal head includes heat generating portions arranged substantially in parallel with each other; thermally transferring the color material layers to form an image on the transfer receiving material; thermally transferring the transferable protective layer to form a protective layer on the transfer receiving material; and shifting the relative positions of the thermal head and the transfer receiving material with respect to each other, in a direction substantially in parallel with a main scanning direction, after transferring the color material layers at least once.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: October 22, 2019
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Suguru Yabe, Hideki Sekiguchi
  • Patent number: 10388774
    Abstract: A semiconductor device includes: a first electrode; a second electrode; a semiconductor region forming region between the first electrode and the second electrode; a first insulating film between the semiconductor region forming region and the second electrode; an actuation gate electrode in the semiconductor region forming region via a second insulating film; a dummy gate electrode, at a distance from the actuation gate electrode, on each of both sides of the actuation gate electrode in the semiconductor region forming region via a third insulating film; a trench contact, in a manner facing the actuation gate electrode, at a position in the third insulating film and between the dummy gate electrode and the semiconductor region forming region; and a contact electrode in the first insulating film and configured to electrically connect the trench contact to the second electrode.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: August 20, 2019
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventor: Hideki Sekiguchi
  • Publication number: 20190172935
    Abstract: A semiconductor device includes: a first electrode; a second electrode; a semiconductor region forming region between the first electrode and the second electrode; a first insulating film between the semiconductor region forming region and the second electrode; an actuation gate electrode in the semiconductor region forming region via a second insulating film; a dummy gate electrode, at a distance from the actuation gate electrode, on each of both sides of the actuation gate electrode in the semiconductor region forming region via a third insulating film; a trench contact, in a manner facing the actuation gate electrode, at a position in the third insulating film and between the dummy gate electrode and the semiconductor region forming region; and a contact electrode in the first insulating film and configured to electrically connect the trench contact to the second electrode.
    Type: Application
    Filed: March 5, 2018
    Publication date: June 6, 2019
    Inventor: Hideki Sekiguchi
  • Patent number: 10253879
    Abstract: Provided is a transmission control system that enables more precise control of the transmission ratio. This transmission control system is provided with a motor, an actuator, a transmission, a position sensor, a current sensor, and a control unit. The control unit includes: a drive unit that drives the motor while the vehicle is stopped; and a first estimation unit that estimates the initial transmission ratio, which indicates the transmission ratio when the ignition switch is turned on, on the basis of a rotation position detected by the position sensor, a load current detected by the current sensor, and a characteristic curve over a period during which the drive unit is operating.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: April 9, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Hiroyuki Sakamoto, Hideki Sekiguchi, Fumihiro Ohsawa, Yuta Tanaka
  • Patent number: 10221945
    Abstract: The present invention addresses the problem of obtaining an electronic control device for a vehicular automatic transmission that suppresses sudden acceleration, sudden deceleration, and gear shift shock that occur when the transmission moves into a fail-safe mode due to the electronic control device stopping during a main CPU abnormality. An electronic control device 100 for a vehicular automatic transmission has: a main CPU 3 that performs gear shift control for the vehicular automatic transmission; and a sub-CPU 4 that detects abnormalities in the main CPU 3. When the sub-CPU 4 detects an abnormality in the main CPU 3 while the vehicle is traveling, the sub-CPU 4 stops the gear shift control executed by the main CPU 3.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: March 5, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Kenichi Hoshino, Ryosuke Ishida, Hideki Sekiguchi
  • Publication number: 20180277667
    Abstract: A semiconductor device includes first and second electrodes, first semiconductor region of first conductivity type between the first and second electrodes, a second semiconductor region of second conductivity type between the first semiconductor region and the first electrode, a third semiconductor region of the second conductivity type between the first semiconductor region and the second electrode, a fourth semiconductor region of the first conductivity type between the third semiconductor region and the second electrode, a plurality of third electrodes between the second electrode and the first semiconductor region, wherein a gate insulating film is between each third electrode and the third semiconductor region, a fourth electrode extending between the third semiconductor region and the second electrode and electrically connected to the third semiconductor region and the second electrode, and a first insulating film between the second and electrodes.
    Type: Application
    Filed: August 29, 2017
    Publication date: September 27, 2018
    Inventors: Hideki SEKIGUCHI, Keiko KAWAMURA, Kaori FUSE, Akira KOMATSU, Ryohei KITAO, Satoshi WAKATSUKI, Atsuko SAKATA, Koichi KUBO
  • Publication number: 20180266551
    Abstract: Provided is a transmission control system that enables more precise control of the transmission ratio. This transmission control system is provided with a motor, an actuator, a transmission, a position sensor, a current sensor, and a control unit. The control unit includes: a drive unit that drives the motor while the vehicle is stopped; and a first estimation unit that estimates the initial transmission ratio, which indicates the transmission ratio when the ignition switch is turned on, on the basis of a rotation position detected by the position sensor, a load current detected by the current sensor, and a characteristic curve over a period during which the drive unit is operating.
    Type: Application
    Filed: January 29, 2016
    Publication date: September 20, 2018
    Inventors: Hiroyuki SAKAMOTO, Hideki SEKIGUCHI, Fumihiro OHSAWA, Yuta TANAKA
  • Publication number: 20180222238
    Abstract: A method for forming an image and a protective layer on a transfer receiving material, by thermal transfer, including supplying a thermal transfer sheet between a thermal head of a thermal printer and a platen roller, wherein the thermal transfer sheet includes color material layers and a transferable protective layer arranged in a face serial manner, and wherein the thermal head includes heat generating portions arranged substantially in parallel with each other; thermally transferring the color material layers to form an image on the transfer receiving material; thermally transferring the transferable protective layer to form a protective layer on the transfer receiving material; and shifting the relative positions of the thermal head and the transfer receiving material with respect to each other, in a direction substantially in parallel with a main scanning direction, after transferring the color material layers at least once.
    Type: Application
    Filed: September 7, 2016
    Publication date: August 9, 2018
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Suguru YABE, Hideki SEKIGUCHI
  • Publication number: 20180003296
    Abstract: The present invention addresses the problem of obtaining an electronic control device for a vehicular automatic transmission that suppresses sudden acceleration, sudden deceleration, and gear shift shock that occur when the transmission moves into a fail-safe mode due to the electronic control device stopping during a main CPU abnormality. An electronic control device 100 for a vehicular automatic transmission has: a main CPU 3 that performs gear shift control for the vehicular automatic transmission; and a sub-CPU 4 that detects abnormalities in the main CPU 3. When the sub-CPU 4 detects an abnormality in the main CPU 3 while the vehicle is traveling, the sub-CPU 4 stops the gear shift control executed by the main CPU 3.
    Type: Application
    Filed: January 12, 2016
    Publication date: January 4, 2018
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Kenichi HOSHINO, Ryosuke ISHIDA, Hideki SEKIGUCHI
  • Patent number: 9726406
    Abstract: There is provided an expansion valve which, by moving the sub-valve in a valve housing, controls the flow rate of a refrigerant in a first flow direction and releases the refrigerant to flow in a second flow direction, wherein the sub-valve is reduced in weight and a valve port is provided with high accuracy. The sub-valve includes a guide member formed by press work and a valve seat member formed by cutting. The sub-valve is seated on a sub-valve seat of a valve seat ring when the pressure in a main valve chamber is high, and is moved away from the sub-valve seat when the pressure in the main valve chamber is low. The sub-valve is reduced in weight by forming the guide member by press work, and the valve port is formed with improved accuracy by forming the valve seat member by cutting.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: August 8, 2017
    Assignee: KABUSHIKI KAISHA SAGINOMIYA SEISAKUSHO
    Inventor: Hideki Sekiguchi
  • Publication number: 20160298761
    Abstract: The present invention relates to a range switching device for performing range switching of an automatic transmission by using an actuator that is electrically controlled to be driven, and to a switching method thereof. A range switching device of an automatic transmission that can reduce collision noise occurring from a detent mechanism and a switching method thereof are provided. The automatic transmission includes a detent mechanism that presses a roller against a groove by using a spring, moves the roller between grooves, and determines a range position of the transmission, and a range of the transmission is changed by driving the detent mechanism by the actuator. In changing a range position of the transmission, the actuator is braked in accordance with a drawing force of the spring into a groove so that energy of the velocity when the roller reaches a target stop position can be controlled to approach zero.
    Type: Application
    Filed: September 19, 2014
    Publication date: October 13, 2016
    Inventors: Yuji NOTO, Hideki SEKIGUCHI
  • Publication number: 20150263147
    Abstract: A semiconductor device includes a substrate having an inner portion and a peripheral portion around the inner region. A recess is formed in the peripheral region inwardly of the substrate edge and extending into the substrate surface. A diffusion region and a first insulation layer is formed in the recess. The diffusion region is formed intermediate of the first insulation layer and the inner region. A first conductor extends over a portion of the diffusion region and the first insulation layer. A second insulation layer is located over the recess, the first conductor, the diffusion layer and the first insulation layer, and a second conductor layer is disposed on the second insulation layer. The distance between first and second conductor layers where the first conductor layer extends over the diffusion layer is greater than the distance therebetween where the second conductor overlies the first insulation layer.
    Type: Application
    Filed: September 1, 2014
    Publication date: September 17, 2015
    Inventor: Hideki SEKIGUCHI
  • Patent number: 8562080
    Abstract: A brake system provided with a brake booster using intake negative pressure of an engine for boosting a brake operating force for a vehicle. A requested braking force is detected base on an operating amount of a brake pedal, and when the requested braking force is less than a threshold value, a master cylinder pressure prevailing in the master cylinder using an operating force boosted by the brake booster is supplied to the wheel cylinder. On the other hand, when the requested braking force is greater than or equal to the threshold value, brake fluid pressure having been boosted by a pump is supplied to the wheel cylinder. The threshold value is set to a value that becomes greater the larger the negative pressure inside the brake booster.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: October 22, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Hideki Sekiguchi, Toshiya Oosawa, Satoru Watanabe, Tomoyuki Murakami, Akihiro Sato, Motohiro Higuma
  • Patent number: 8545949
    Abstract: A resin composition used to form a dye-receiving layer of a thermal transfer-receiving sheet in which the dye-receiving layer is formed on at least one surface of a substrate contains a core/shell-type latex including a core containing (A) and a shell containing (B) and a cross-linking agent that reacts with a carboxyl group contained in the shell. (A) is an acrylic resin at least containing, as one of its monomers, a substituted or unsubstituted phenoxyalkyl (meth)acrylate and/or a substituted or unsubstituted phenoxy polyalkylene glycol (meth)acrylate. (B) is a urethane resin containing a carboxyl group.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: October 1, 2013
    Assignee: Sony Corporation
    Inventor: Hideki Sekiguchi