Patents by Inventor Akihiro Takahashi

Akihiro 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: 10449936
    Abstract: A brake control device is configured such that a hydraulic braking device is provided for one of a front wheel and a rear wheel, and an electric braking device is provided for the other one of them. The electric braking device is provided with a mechanism configured to prohibit retreat of a piston for pressing friction members against a rotor that rotates with the wheel. The brake control device is configured to maintain, by an operation of the mechanism, a braking force that does not depend on a force of an electric motor as a drive force and to control a braking force generated by the hydraulic braking device based on a difference between the braking force thus maintained and a braking force requested for the electric braking device.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: October 22, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihiro Takahashi, Kohji Shibata
  • Publication number: 20190150801
    Abstract: An oxygen measurement device includes a catheter including a flexible hollow shaft, the flexible shaft having an open port configured to allow urine from a bladder to flow into the open port, and a urinary passage in communication with the open port configured to discharge the urine; and an oxygen sensor including an oxygen sensor main body capable of detecting oxygen in the urine, the oxygen sensor being disposed in the catheter and configured such that the oxygen sensor main body is in contact with the urine flowing in the urinary passage.
    Type: Application
    Filed: December 7, 2018
    Publication date: May 23, 2019
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Satoru Suehara, Seyedriyah Hazama, Satoshi Sawada, Akihiro Takahashi
  • Publication number: 20180224977
    Abstract: An input device includes a driver that supplies drive signals to a plurality of capacitive elements, respectively; a charge detector that detects a change in an electric charge corresponding to the drive signal in each of the plurality of capacitive elements; a capacitive element identifier that identifies the capacitive element to which an object approaches based on a detection result by the charge detector; an electric field generator that generates an electric field for reducing another electric field generated as an electric charge changes in the capacitive element when the driver supplies the drive signal to the capacitive element; and a controller that adjusts the electric field generated by the electric field generator depending on whether the capacitive element to which the driver supplies the drive signal includes the capacitive element identified by the capacitive element identifier.
    Type: Application
    Filed: April 6, 2018
    Publication date: August 9, 2018
    Inventor: Akihiro TAKAHASHI
  • Patent number: 9994109
    Abstract: A boost converter is configured of a boost chopper having a diode of an upper arm and a switching element of a lower arm. Output power from a battery to a load is limited such that a current flowing through boost converter does not exceed a current upper limit value for thermal protection of boost converter. The current upper limit value is set based not only on a cooling water temperature of boost converter but also on an output voltage VH of boost converter, in consideration of characteristics that, as output voltage VH rises, an amount of heat generated in diode decreases, diode being regarded as a main target of thermal protection since it receives a power running current to load. Thereby, the boost converter can be protected from overheating without excessively deteriorating vehicle traveling performance.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: June 12, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Etsushi Taguchi, Akihiro Takahashi
  • Publication number: 20180154875
    Abstract: A brake control device is configured such that a hydraulic braking device is provided for one of a front wheel and a rear wheel, and an electric braking device is provided for the other one of them. The electric braking device is provided with a mechanism configured to prohibit retreat of a piston for pressing friction members against a rotor that rotates with the wheel. The brake control device is configured to maintain, by an operation of the mechanism, a braking force that does not depend on a force of an electric motor as a drive force and to control a braking force generated by the hydraulic braking device based on a difference between the braking force thus maintained and a braking force requested for the electric braking device.
    Type: Application
    Filed: November 29, 2017
    Publication date: June 7, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihiro TAKAHASHI, Kohji SHIBATA
  • Patent number: 9977532
    Abstract: An input apparatus includes a sensor section configured to include a plurality of detection units, and to control positive and negative polarities of a detection signal at each detection position, a control unit configured to generate a group of combined detection signals in which polarity patterns are different from each other, and a signal reproduction unit configured to reproduce signal levels of a group of detection signals on the basis of a group of combined detection signals and a group of polarity patterns, in which at least some of the plurality of detection units differ in the number of detection positions, and the control unit selects the group of polarity patterns according to the number of detection positions so that the number of positive polarities and the number of negative polarities included in each of the polarity patterns are similar to each other.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: May 22, 2018
    Assignee: Alps Electric Co., Ltd.
    Inventors: Akihiro Takahashi, Shinichi Sagawai
  • Publication number: 20180126561
    Abstract: A non-transitory computer-readable recording medium stores a generation program that causes a computer to execute a process including: acquiring a character string recognized from a voice of a speaker, and data representing a movement of the speaker in a period corresponding to a period in which the voice is output; and generating information indicating a correspondence relationship between a character string and a movement based on the acquired character string and the acquired data representing the movement.
    Type: Application
    Filed: October 17, 2017
    Publication date: May 10, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Akihiro Takahashi, Shota Niikura, Mitsuru Hanada, Tetsuya Okano
  • Patent number: 9829985
    Abstract: An input device includes an input unit on which an operator performs a predetermined operation to perform input, a storage unit that stores a reference range set on a virtual coordinate, a control unit that identifies the operation of the operator based on a trajectory of the operation performed on the input unit by the operator and the reference range, a determination unit that determines whether the trajectory of the operation of the operator exceeds the reference range, and a range setting unit that updates the reference range based on a determination result of the determination unit.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: November 28, 2017
    Assignee: ALPS ELECTRIC CO., LTD.
    Inventors: Akihiro Takahashi, Ikuyasu Miyako
  • Publication number: 20170245922
    Abstract: A dissecting device for dissecting tissue surrounding a blood vessel in a living body. The dissecting device includes a grasping section that includes an insertion lumen. The dissecting device includes a dissecting member at the distal portion of the grasping section. The dissecting member is insertable into the living body along the blood vessel to dissect the tissue surrounding the blood vessel in the living body. The dissecting member includes a treating section and a protruding section. The treating section performs a predetermined treatment of a branch vessel branching from the blood vessel. The protruding section protrudes from the treating section in the thickness direction of the treating section. The protruding section includes a guide section configured to guide the branch vessel toward the treating section.
    Type: Application
    Filed: February 27, 2017
    Publication date: August 31, 2017
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Tatsunori FUJII, Akihiro TAKAHASHI, Makoto JINNO
  • Publication number: 20160342264
    Abstract: An input apparatus includes a sensor section configured to include a plurality of detection units, and to control positive and negative polarities of a detection signal at each detection position, a control unit configured to generate a group of combined detection signals in which polarity patterns are different from each other, and a signal reproduction unit configured to reproduce signal levels of a group of detection signals on the basis of a group of combined detection signals and a group of polarity patterns, in which at least some of the plurality of detection units differ in the number of detection positions, and the control unit selects the group of polarity patterns according to the number of detection positions so that the number of positive polarities and the number of negative polarities included in each of the polarity patterns are similar to each other.
    Type: Application
    Filed: April 7, 2016
    Publication date: November 24, 2016
    Inventors: Akihiro TAKAHASHI, Shinichi SAGAWAI
  • Patent number: 9501173
    Abstract: An input device includes a coordinate input unit including an operation surface on which a pressing operation can be performed and detecting contact of an operation body with the operation surface, a pressing detection unit that detects that the operation surface is pressed, and a control unit that processes detection results of the coordinate input unit and the pressing detection unit, in which the control unit obtains the center coordinate of a contact position from the detection result of the coordinate input unit, and compares the center coordinate before the pressing operation with the center coordinate after the pressing operation when there is a pressing operation with respect to the operation surface, and when a difference between the center coordinates is smaller than a threshold value, the center coordinate before the pressing operation is used as a center coordinate at the time of the pressing operation.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: November 22, 2016
    Assignee: ALPS ELECTRIC CO., LTD.
    Inventor: Akihiro Takahashi
  • Publication number: 20160152150
    Abstract: A boost converter is configured of a boost chopper having a diode of an upper arm and a switching element of a lower arm. Output power from a battery to a load is limited such that a current flowing through boost converter does not exceed a current upper limit value for thermal protection of boost converter. The current upper limit value is set based not only on a cooling water temperature of boost converter but also on an output voltage VH of boost converter, in consideration of characteristics that, as output voltage VH rises, an amount of heat generated in diode decreases, diode being regarded as a main target of thermal protection since it receives a power running current to load. Thereby, the boost converter can be protected from overheating without excessively deteriorating vehicle traveling performance.
    Type: Application
    Filed: December 1, 2015
    Publication date: June 2, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Etsushi TAGUCHI, Akihiro TAKAHASHI
  • Publication number: 20150261381
    Abstract: An input device includes a coordinate input unit including an operation surface on which a pressing operation can be performed and detecting contact of an operation body with the operation surface, a pressing detection unit that detects that the operation surface is pressed, and a control unit that processes detection results of the coordinate input unit and the pressing detection unit, in which the control unit obtains the center coordinate of a contact position from the detection result of the coordinate input unit, and compares the center coordinate before the pressing operation with the center coordinate after the pressing operation when there is a pressing operation with respect to the operation surface, and when a difference between the center coordinates is smaller than a threshold value, the center coordinate before the pressing operation is used as a center coordinate at the time of the pressing operation.
    Type: Application
    Filed: January 23, 2015
    Publication date: September 17, 2015
    Inventor: Akihiro TAKAHASHI
  • Publication number: 20150259000
    Abstract: An input device includes an input unit on which an operator performs a predetermined operation to perform input, a storage unit that stores a reference range set on a virtual coordinate, a control unit that identifies the operation of the operator based on a trajectory of the operation performed on the input unit by the operator and the reference range, a determination unit that determines whether the trajectory of the operation of the operator exceeds the reference range, and a range setting unit that updates the reference range based on a determination result of the determination unit.
    Type: Application
    Filed: January 21, 2015
    Publication date: September 17, 2015
    Inventors: Akihiro TAKAHASHI, Ikuyasu MIYAKO
  • Patent number: 9020342
    Abstract: In a transmission control apparatus, connected communication devices are detected to find round trip time of transmission to each of the detected communication devices, and the order of each communication device is determined on the basis of the round trip time of transmission to that communication device depending upon the distance thereto. On the basis of the round trip times of transmission to, and the orders of, the communication devices, transmission wait times are determined for delaying transmission of control signals from the communication devices to notify the communication devices of the transmission wait times. When starting communication with the communication devices, timer start signals prompting the communication devices to start counting the transmission wait time are transmitted to the communication devices.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: April 28, 2015
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Masahiro Sarashina, Akihiro Takahashi
  • Patent number: 8974424
    Abstract: The syringe includes first and second outer cylinders having a flowing port at a distal end through which liquid is flowable, and a plunger inserted from the proximal side of the outer cylinder. The syringe includes a tooth portion provided along the direction of movement of the plunger, and a hook configured to lock the tooth portion at a predetermined locking position and prevent the movement of the plunger in the direction toward the proximal end. The hook retracts from the locking position in association with the unlocking operation and restores automatically to the locking position after the unlocking operation.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: March 10, 2015
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Katsuaki Soma, Akihiro Takahashi
  • Patent number: 8957492
    Abstract: In one embodiment of a method of manufacturing a semiconductor device, a plurality of substantially columnar trenches are formed along a region for forming a dicing line in a semiconductor substrate having first surface and second surfaces opposed to each other, from the first surface. The substrate is subjected to a heat treatment. At least one hollow portion is formed in the substrate by migration of a material which composes the substrate. Semiconductor devices are formed in semiconductor regions of the substrate which are surrounded by the region for forming the dicing line. The semiconductor regions are provided on a side of the first surface. A portion of the substrate is removed from a side of the second surface until the thickness is reduced to a predetermined value. The substrate is divided into chips along a dicing line from at least the one hollow portion as a starting point.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: February 17, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Akihiro Takahashi
  • Patent number: 8942566
    Abstract: A bandwidth allocator for communicating with communication terminals by transmitting and receiving data packets over a line having its communication bandwidth divided into periods of time of a predetermined length. The allocator includes a controller controlling allocation of the bandwidth by using allocation grants as the periods of time. The controller includes a scheduler scheduling the allocation grants so as to cause one allocation grant to partially overlap as a shared grant with another allocation grant adjacent to the one allocation grant. Thus, the bandwidth allocator can minimize allocation loss, otherwise caused by no allocation to an allocation grant, and improve the use efficiency of the bandwidth.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: January 27, 2015
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Hideaki Tamai, Akihiro Takahashi, Satoshi Furusawa, Akiya Suzuki
  • Publication number: 20140340356
    Abstract: An input device includes a control unit configured to have a first threshold value for a signal intensity, a second threshold value lower than the first threshold value, and a third threshold value for a fluctuation in a coordinate within a predetermined time, wherein the third threshold value has a predetermined range, and in the control unit, in a case where the signal intensity exceeding the first threshold value is obtained or a case where the signal intensity is situated between the first threshold value and the second threshold value and the fluctuation in a coordinate falls within the range of the third threshold value, an operation is recognized as the operation for the operation screen.
    Type: Application
    Filed: May 19, 2014
    Publication date: November 20, 2014
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Akihiro Takahashi, Hiroshi Wakuda, Shinya Abe
  • Patent number: 8654785
    Abstract: Provided is a subscriber-side communication device including a subscriber-side processing unit that continuously performs signal processing regardless of computer restart and includes a transmission processing unit that performs a data transmission process according to transmission control information contained in a received signal from the office-side communication device.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: February 18, 2014
    Assignees: OF Networks Co., Ltd., Oki Electric Industry Co., Ltd., Fujikura Ltd.
    Inventors: Satoshi Furusawa, Akihiro Takahashi, Yasuyuki Kuroda, Shozo Yamada