Patents by Inventor Masaki Yamashita

Masaki Yamashita 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: 11392138
    Abstract: A vehicle that is able to travel autonomously includes a control unit configured to perform: stopping a first service and executing a second service of emergency support when the emergency has occurred during execution of the first service; and executing movement to a predetermined position associated with the second service. An information processing device includes a control unit configured to perform: detecting occurrence of an emergency; and instructing a vehicle, which is able to travel autonomously and which is located in a predetermined range including an area in which the emergency has occurred, to stop a first service which is being executed and to execute a second service of emergency support.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: July 19, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki Shitara, Hiromichi Dogishi, Keiji Yamashita, Nozomi Kaneko, Naoki Yamamuro, Shunsuke Tanimori, Ryoichi Shiraishi
  • Patent number: 11362605
    Abstract: A method of driving a three-phase motor includes, while a first phase is energized, driving a second phase using a first drive function which is sinusoidal. The first phase is switched to a non-energized state and a back electromotive force (BEMF) voltage of the first phase is detected. For at least a portion of a time when the first phase is non-energized the driving of the second phase depends on the output of a second drive function different from the first drive function. The second drive function may be non-sinusoidal and may be a cosine function. The second drive function may drive the second phase when the output of the second drive function is a modulation ratio less than 1. When the output of the second drive function is a modulation ratio greater than or equal to 1 the second phase may be driven to a modulation ratio of 1.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: June 14, 2022
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Kazumasa Takai, Fumio Kumazawa, Masaki Yamashita
  • Publication number: 20210234484
    Abstract: A method of driving a three-phase motor includes, while a first phase is energized, driving a second phase using a first drive function which is sinusoidal. The first phase is switched to a non-energized state and a back electromotive force (BEMF) voltage of the first phase is detected. For at least a portion of a time when the first phase is non-energized the driving of the second phase depends on the output of a second drive function different from the first drive function. The second drive function may be non-sinusoidal and may be a cosine function. The second drive function may drive the second phase when the output of the second drive function is a modulation ratio less than 1. When the output of the second drive function is a modulation ratio greater than or equal to 1 the second phase may be driven to a modulation ratio of 1.
    Type: Application
    Filed: January 29, 2020
    Publication date: July 29, 2021
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Kazumasa TAKAI, Fumio KUMAZAWA, Masaki YAMASHITA
  • Publication number: 20210024486
    Abstract: The present invention provides a compound having an mPGES-1 inhibitory activity and useful for the prophylaxis or treatment of pain, rheumatism, osteoarthritis, fever, Alzheimer's disease, multiple sclerosis, arteriosclerosis, glaucoma, ocular hypertension, ischemic retinal disease, systemic scleroderma and/or cancer including colorectal cancer. The present invention relates to a compound of formula [I-a], [I-b] or [I-c] or a pharmaceutically acceptable salt thereof: wherein each symbol is as defined in the specification.
    Type: Application
    Filed: March 3, 2020
    Publication date: January 28, 2021
    Applicant: Japan Tobacco Inc.
    Inventors: Ikuo Mitani, Yutaro Hirono, Masaki Yamashita
  • Publication number: 20200087266
    Abstract: Provided is a compound having an mPGES-1 inhibitory activity and useful for the prophylaxis or treatment of pain, rheumatism, osteoarthritis, fever, Alzheimer's disease, multiple sclerosis, arteriosclerosis, glaucoma, ocular hypertension, ischemic retinal disease, systemic scleroderma and cancer including colorectal cancer. A compound represented by the formula [I] or a pharmaceutically acceptable salt thereof: wherein each symbol is as defined in the SPECIFICATION.
    Type: Application
    Filed: April 26, 2019
    Publication date: March 19, 2020
    Inventors: Hironobu Nagamori, Ikuo Mitani, Masaki Yamashita, Takahiro Hotta, Yuichi Nakagawa, Masatoshi Ueda
  • Patent number: 9641066
    Abstract: A current driver is coupled to an inductor; a digital control for regulation of the current driver turns the current driver on or off coupled to the current driver; a comparator output coupled to the input of the digital control for regulation of the driver with inputs to compare a voltage of the inductor to a target voltage, a digital control for selection of one of a set of peaks and valleys of allowable current levels of the current driver, the digital control for selection of one of a set of peaks and valleys coupled to the output of the comparator and an input of the current driver, the digital control for the peak/valley current to monitor the duration of each high and low output state of the comparator output to determine the selection of one of the set of peak and valley of allowable current levels for the current driver.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: May 2, 2017
    Assignee: Texas Instruments Incorporated
    Inventors: Naoyuki Tsuruoka, Daijiro Otani, Keita Ikai, Masaki Yamashita
  • Publication number: 20170057943
    Abstract: The present invention provides a compound having an mPGES-1 inhibitory activity and useful for the prophylaxis or treatment of pain, rheumatism, osteoarthritis, fever, Alzheimer's disease, multiple sclerosis, arteriosclerosis, glaucoma, ocular hypertension, ischemic retinal disease, systemic scleroderma and/or cancer including colorectal cancer. The present invention relates to a compound of formula [I-a], [I-b] or [I-c] or a pharmaceutically acceptable salt thereof: wherein each symbol is as defined in the specification.
    Type: Application
    Filed: August 16, 2016
    Publication date: March 2, 2017
    Inventors: Ikuo Mitani, Yutaro Hirono, Masaki Yamashita
  • Patent number: 9490591
    Abstract: A connector is attached to a cable which has a center conductor and a shield. The connector is mateable with a mating connector along a front-rear direction. The mating connector includes a mating contact and a mating shell, which has a mating lock portion and a shell contact portion. The connector includes first and second members. The second member has a front portion and a rear portion. The front portion is provided with a lock portion. One of the rear portion and the front portion is provided with a second contact portion. Under a state where the connector and the mating connector are connected with each other, the lock portion locks the mating lock portion while the second contact portion is brought into contact with the shell contact portion, so that the first member and the second member are maintained in a state in which they are electrically separated.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: November 8, 2016
    Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Masaki Yamashita, Kazuaki Ibaraki
  • Publication number: 20160297596
    Abstract: The packing tool includes a pair of support frames (1) that has a recessed section (5) in which a packing object (A) is able to be arranged and a support portion (6) which has a cushioning function to support the packing object (A) arranged in the recessed portion (5) on a central front surface side, an outer box (2) that is able to accommodate the pair of support frames (1) in a posture in which front surfaces of the support frames (1) face each other, and an inner bag (3) that is freely mounted in at least one of the support frames (1) in a state where the packing object (A) is inner-packed and is able to cause the packing object (A) inner-packed in a mounting posture with respect to the support frame (1) to be subjected to position-holding within the recessed section (5) of the support frames (1).
    Type: Application
    Filed: August 20, 2014
    Publication date: October 13, 2016
    Applicant: YAMAMON CO., LTD.
    Inventors: Masaki Yamashita, Kohei Terashita
  • Publication number: 20160028198
    Abstract: A connector is attached to a cable which has a center conductor and a shield. The connector is mateable with a mating connector along a front-rear direction. The mating connector comprises a mating contact and a mating shell. The mating shell is provided with a mating lock portion and a shell contact portion. The connector comprises a first member and a second member which is formed separately from the first member. The second member has a front portion and a rear portion which is positioned rearward of the front portion in the front-rear direction. The front portion is provided with a lock portion. One of the rear portion and the front portion is provided with a second contact portion.
    Type: Application
    Filed: June 1, 2015
    Publication date: January 28, 2016
    Applicant: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Masaki YAMASHITA, Kazuaki IBARAKI
  • Publication number: 20150266834
    Abstract: Provided is a compound having an mPGES-1 inhibitory activity and useful for the prophylaxis or treatment of pain, rheumatism, osteoarthritis, fever, Alzheimer's disease, multiple sclerosis, arteriosclerosis, glaucoma, ocular hypertension, ischemic retinal disease, systemic scleroderma and cancer including colorectal cancer. A compound represented by the formula [I] or a pharmaceutically acceptable salt thereof: wherein each symbol is as defined in the SPECIFICATION.
    Type: Application
    Filed: February 19, 2015
    Publication date: September 24, 2015
    Inventors: Hironobu Nagamori, Ikuo Mitani, Masaki Yamashita, Takahiro Hotta, Yuichi Nakagawa, Masatoshi Ueda
  • Patent number: 9099944
    Abstract: To provide a disk drive capable of inhibiting the occurrence of acoustic noise caused by a voltage pulse when the head is retracted using a speed control method using voltage obtained by rectifying a back electromotive force after the power source has been cut off from the rotation of a spindle motor. Retraction control circuit is used to control the on and off modes of transistors in accordance with the speed of VCM. The voltage across VCM becomes a voltage that can be regulated with VCM voltage control circuit. At this time, voltage is supplied to the terminals based on the voltage of ISO5V that is the rectified voltage of the back electromotive force of the spindle motor and the pulsating voltage is synchronized and produced at both terminals. As a result, the potential difference across VCM is such that the pulsating voltage is negated and acoustic noise is inhibited.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: August 4, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Masaki Yamashita, Chisako Asaoka, Nobuhiko Wasa
  • Patent number: 8963472
    Abstract: An apparatus, comprises three driver FETs coupled at their sources; note-driver circuit; a first sense FET coupled to the sources of the three driver FETs; a current mirror having the first sense FET and a mirror FET; wherein the first sense FET is coupled to the mirror FET; a first transconductance amplifier coupled to the first sense FET; a second amplifier coupled to the current mirror, and an output of the first transconductance amplifier is an input to the second amplifier.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: February 24, 2015
    Assignee: Texas Instruments Incorporated
    Inventors: Daijiro Otani, Nakoyuki Tsuruoka, Masaki Yamashita
  • Publication number: 20140265966
    Abstract: To provide a disk drive capable of inhibiting the occurrence of acoustic noise caused by a voltage pulse when the head is retracted using a speed control method using voltage obtained by rectifying a back electromotive force after the power source has been cut off from the rotation of a spindle motor. Retraction control circuit is used to control the on and off modes of transistors in accordance with the speed of VCM. The voltage across VCM becomes a voltage that can be regulated with VCM voltage control circuit. At this time, voltage is supplied to the terminals based on the voltage of ISO5V that is the rectified voltage of the back electromotive force of the spindle motor and the pulsating voltage is synchronized and produced at both terminals. As a result, the potential difference across VCM is such that the pulsating voltage is negated and acoustic noise is inhibited.
    Type: Application
    Filed: March 26, 2014
    Publication date: September 18, 2014
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Masaki Yamashita, Chisako Asaoka, Nobuhiko Wasa
  • Patent number: 8791657
    Abstract: To provide a disk drive capable of inhibiting the occurrence of acoustic noise caused by a voltage pulse when the head is retracted using a speed control method using voltage obtained by rectifying a back electromotive force after the power source has been cut off from the rotation of a spindle motor. Retraction control circuit is used to control the on and off modes of transistors in accordance with the speed of VCM. The voltage across VCM becomes a voltage that can be regulated with VCM voltage control circuit. At this time, voltage is supplied to the terminals based on the voltage of ISO5V that is the rectified voltage of the back electromotive force of the spindle motor and the pulsating voltage is synchronized and produced at both terminals. As a result, the potential difference across VCM is such that the pulsating voltage is negated and acoustic noise is inhibited.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: July 29, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Masaki Yamashita, Chisako Asaoka, Nobuhiko Wasa
  • Patent number: 8781793
    Abstract: The light emission analyzing device includes: a first light intensity calculation unit that performs polynomial approximation on a spectroscopic spectrum indicating a light intensity for each wavelength in a container as measured by a spectrometer so as to calculate the light intensity; a second light intensity calculation unit that subtracts, for each wavelength, the light intensity calculated by the first light intensity calculation unit from the light intensity indicated by the spectroscopic spectrum measured by the spectrometer so as to calculate a light intensity corresponding to a bright-line spectrum of a molecule; and a ratio calculation unit that calculates, by using the light intensity calculated by the second light intensity calculation unit, a ratio between (a) a peak value of a molecular spectrum of a first molecule and (b) a peak value of a molecular spectrum of a second molecule.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: July 15, 2014
    Assignee: CREV Inc.
    Inventors: Masaki Yamashita, Hiromi Mizukawa
  • Patent number: D725597
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: March 31, 2015
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventor: Masaki Yamashita
  • Patent number: D744426
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: December 1, 2015
    Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventor: Masaki Yamashita
  • Patent number: D744427
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: December 1, 2015
    Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Masaki Yamashita, Masaaki Takaku
  • Patent number: D752515
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: March 29, 2016
    Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Masaki Yamashita, Masaaki Takaku