Patents by Inventor Masaki Tanaka

Masaki Tanaka 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: 10966604
    Abstract: A subjective optometry apparatus includes a subjective measurement portion which subjectively measures optical characteristics of an subject eye, an objective measurement portion which objectively measures optical characteristics of the subject eye, a control portion which causes the objective measurement portion to objectively measure the optical characteristics during the measurement by the subjective measurement portion, and a display control portion which performs a control to display an eye diagram representing the subject eye and an imaging position of a target light flux incident on the subject eye. The display control portion performs a control to display the imaging position based on the objectively measured optical characteristics.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: April 6, 2021
    Assignee: NIDEK CO., LTD.
    Inventors: Michihiro Takii, Masaki Tanaka, Masaaki Hanebuchi
  • Publication number: 20210086624
    Abstract: A control apparatus controls an inverter which outputs electric power to an electric motor. The control apparatus calculates a magnitude of a drive current at a one-pulse control time based on an electric motor drive torque, a rotation number of the electric motor, and a DC voltage of the electric motor and thereby determines which one of a one-pulse control and a pulse-width modulation control is employed as a control method of the inverter.
    Type: Application
    Filed: September 23, 2020
    Publication date: March 25, 2021
    Inventor: Masaki Tanaka
  • Publication number: 20210087985
    Abstract: A control apparatus includes: a data acquisition part that is configured to acquire torque data indicating a drive torque of an electric motor, rotation number data indicating a rotation number of the electric motor, and DC voltage data indicating a DC voltage supplied to an inverter which supplies an AC current to the electric motor; a determination basis derivation part that is configured to derive a determination basis based on a drive efficiency of the electric motor by using the torque data, the rotation number data, and the DC voltage data; and a control method determination part that is configured to determine, based on the determination basis, which one of a one-pulse control and a pulse-width modulation control is employed as a control method of the inverter.
    Type: Application
    Filed: September 21, 2020
    Publication date: March 25, 2021
    Inventors: Masaki Tanaka, Yoichi Yamashiro
  • Publication number: 20210091702
    Abstract: A control apparatus controls an inverter which outputs electric power to an electric motor. The control apparatus determines which one of a one-pulse control and a pulse-width modulation control is employed as a control method of the inverter in accordance with a predetermined condition based on an electric motor drive torque of the electric motor, a rotation number of the electric motor, and a DC voltage of the electric motor.
    Type: Application
    Filed: September 21, 2020
    Publication date: March 25, 2021
    Inventor: Masaki Tanaka
  • Publication number: 20210087186
    Abstract: The present invention provides a compound having a glucosylceramide lowering action (e.g., promoting glucosylceramide metabolism, inhibition of glucosylceramide synthesis, promoting glucosylceramide catabolism, etc.), which is expected to be useful as an agent for the prophylaxis or treatment of lysosome diseases (e.g., Gaucher's disease), neurodegenerative diseases (e.g., Parkinson's disease, Lewy body dementia, multiple-system atrophy) and the like. The present invention relates to a compound represented by the formula (I) wherein each symbol is as described in the specification, or a salt thereof.
    Type: Application
    Filed: January 30, 2019
    Publication date: March 25, 2021
    Applicant: Takeda Pharmaceutical Company Limited
    Inventors: Yuta TANAKA, Tomohiro OHASHI, Zenichi IKEDA, Yuta TANAKA, Florian PÜNNER, Takeshi YAMAMOTO, Keiko KAKEGAWA, Fumiaki KIKUCHI, Nao MORISHITA, Takahito KASAHARA, Masaki SETO, Minoru NAKAMURA, Kazuaki TAKAMI, Masataka MURAKAMI, Masaki DAINI, Satoshi MIKAMI, Minoru SASAKI
  • Publication number: 20210088360
    Abstract: A control apparatus includes: a data acquisition part that acquires correction data indicating a content regarding a correction process which corrects an error of an angle at which a rotation angle sensor that measures a rotation angle of a rotor included in an electric motor is attached; a determination part that determines, based on the correction data, whether or not the correction process has been performed; and a control method determination part that determines, in a case where it is determined that the correction process has not been performed, that an inverter which supplies an AC current to the electric motor is controlled under a pulse-width modulation control.
    Type: Application
    Filed: September 21, 2020
    Publication date: March 25, 2021
    Inventor: Masaki Tanaka
  • Patent number: 10952288
    Abstract: An induction heating device and an induction heating method are provided. The entire areas to be heated of the workpiece can be uniformly heated to a predetermined high temperature, and uniform heating is possible even when the workpiece deforms in a non-uniform manner during heating. When areas to be heated are established on a workpiece so as to extend in one direction and the areas to be heated are induction-heated, the deformation amount on one edge of the areas to be heated is different from that on the other. This induction heating device includes; heating coils facing a portion of the areas to be heated when the workpiece is induction-heated; and a relative transfer means for transferring the workpiece and the heating coils along one direction in a relative manner, and the heating coils are disposed so as to correspond to the areas to be heated during the heating period.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: March 16, 2021
    Assignee: NETUREN CO., LTD.
    Inventors: Hitoshi Nakatsu, Masato Yoshioka, Yoshimasa Tanaka, Tsutomu Ito, Kenji Koyanagi, Masaki Sagae, Tatsuya Ishii, Yoshitaka Misaka, Yasuharu Ogawa
  • Patent number: 10947701
    Abstract: Provided is a working vehicle capable of, while reducing fuel consumption, improving traveling performance only when high traveling performance is required. A wheel loader 1 comprises: an engine 3; a variable displacement HST pump 41; a variable displacement HST motor 42 connected to the HST pump 41 through a closed circuit; pressure sensors 72A, 72B configured to load pressure of the HST motor 42; and a controller 5, wherein the controller 5 is configured to, in a case of determining that a load pressure detection value P is included in a predetermined pressure range of greater than load pressure P? corresponding to flat ground traveling and smaller than load pressure P? corresponding to an excavation operation, increase maximum rotational speed of the engine 3 only within the predetermined pressure range.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: March 16, 2021
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Koji Hyodo, Tetsuji Tanaka, Isamu Aoki, Masaki Nukii, Yuki Ahiko
  • Publication number: 20210075921
    Abstract: A maintenance support system includes a network interface, a memory, and a processor configured to, upon receipt of first information indicating a status of a first apparatus via the network interface, store the first information in the memory, upon receipt of second information indicating a status of a second apparatus via the network interface, store the second information in the memory, and determine a priority of on-site maintenance between the first and second apparatuses based on the first and second information stored in the memory.
    Type: Application
    Filed: September 8, 2020
    Publication date: March 11, 2021
    Inventors: Sou MIYAZAKI, Hiroyo TANAKA, Kazuhiro OGURA, Masaki NARAHASHI, Satoshi OYAMA
  • Publication number: 20210075920
    Abstract: A maintenance support device includes a memory that stores work result information that corresponds to a maintenance work that has been performed to solve a failure of an image processing apparatus. A processor is configured to acquire, and store in the memory, first work result information corresponding to a first maintenance work performed to solve a first failure type. After the first work result has been stored, the processor acquires, and stores in the memory, second work result information corresponding to a second maintenance work performed to solve a second failure type. It is then determined whether the first failure type matches the second failure type. Upon determining that the first and second failure types match, the first work result information is then updated to indicate that the first maintenance work has not been successful.
    Type: Application
    Filed: September 8, 2020
    Publication date: March 11, 2021
    Inventors: Kazuhiro OGURA, Hiroyo TANAKA, Masaki NARAHASHI, Sou MIYAZAKI, Satoshi OYAMA
  • Publication number: 20210063513
    Abstract: A radio frequency amplifying device according to an embodiment includes load impedance calculating circuitry and controlling circuitry. The load impedance calculating circuitry is configured to calculate a load impedance on the basis of information about a voltage standing wave rate and a phase on an output side of radio frequency amplifying circuitry. The controlling circuitry is configured to adjust a gain and a phase of a signal to be input to the radio frequency amplifying circuitry, in accordance with the load impedance calculated by the load impedance calculating circuitry.
    Type: Application
    Filed: August 26, 2020
    Publication date: March 4, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Masaki TANJI, Susumu Kawaguchi, Hajime Tanaka
  • Patent number: 10936104
    Abstract: According to one embodiment, a touch detection device includes first detection electrodes in a detection area, second detection electrodes in the detection area, extending to intersect the first detection electrodes, first control lines connected to the first detection electrodes, respectively, and provided in a non-detection area, and second control lines connected to the second detection electrodes, respectively, and provided in the non-detection area. The second control lines overlap the first control lines at a plurality of positions as seen in plan view, such that areas of overlapping portions in which the first control lines overlap the second control lines are substantially equalized.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: March 2, 2021
    Assignee: Japan Display Inc.
    Inventors: Chihiro Tanaka, Naoki Takada, Toshihiko Tanaka, Hayato Kurasawa, Koji Ishizaki, Tatsuya Wakimoto, Masaki Miyatake
  • Patent number: 10938183
    Abstract: A distributed feedback (DFB) laser outputting a predetermined wavelength of laser light includes a quantum well active layer positioned between a p-type cladding layer and an n-type cladding layer in thickness direction. The DFB laser includes a separate confinement heterostructure layer positioned between the quantum well active layer and then-type cladding layer. The DFB laser includes an electric-field-distribution-control layer positioned between the separate confinement heterostructure layer and then-type cladding layer and configured by at least two semiconductor layers having band gap energy greater than band gap energy of a barrier layer constituting the quantum well active layer. The DFB laser has a function to select a specific wavelength by returning a specific wavelength in the wavelength-variable laser.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: March 2, 2021
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Junji Yoshida, Hirokazu Itoh, Satoshi Irino, Yuichiro Irie, Taketsugu Sawamura, Masaki Funabashi, Nobumasa Tanaka
  • Publication number: 20210057151
    Abstract: A method for producing a coil for electric apparatus of the present invention is the method for producing a coil for electric apparatus for cutting spirally a block-shaped workpiece formed with a cylindrical portion corresponding to the coil in a circumferential direction of the cylindrical portion, the spiral coil is formed by turning a cutting means while moving it relatively to the workpiece from a part corresponding to one end of the coil to a part corresponding the other end of the coil along a machining line spirally set in the circumferential direction of the cylindrical portion. According to the invention, since the coil is formed by cutting the continuous cutting machining plane without generating a step in design from the block-shaped workpiece formed with a cylindrical portion corresponding to the coil using a wire-tool etc., it is possible to constitute a high-quality coil.
    Type: Application
    Filed: May 29, 2019
    Publication date: February 25, 2021
    Applicant: FUKUI PREFECTURAL GOVERNMENT
    Inventors: Yoshinori SASAKI, Masaki HASHIMOTO, Taiki TANAKA, Hiroshi SANO, Yuichi HASHIMOTO
  • Patent number: 10931917
    Abstract: A transmission terminal transmits video data and display data of a screen shared with another transmission terminal to the other transmission terminal via a predetermined relay apparatus. The transmission terminal includes a storage unit that stores relay apparatus information of the relay apparatus to which the transmission terminal transmits the video data; a receive unit that receives the display data from an external input apparatus connected to the transmission terminal; and a transmitting unit that transmits the display data received by the receive unit to the relay apparatus indicated by the relay apparatus information stored in the storage unit.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: February 23, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Kenji Tanaka, Alain Volmat, Masaki Nakagawa, Takahiro Asai
  • Publication number: 20210041824
    Abstract: A driving device for photosensitive members and developing rollers includes a clutch for selectively transmitting a rotational force from a driving source to the rollers. The clutch includes a rotatable driving member having a first engaging portion together with the first portion, a follower having a second engaging portion engageable with the first portion, and a rotatable member changeable, by rotation in a direction opposite from a rotational direction of the driving member, from a first state in which the driving force from the driving source is not transmitted without engagement between the first portion and the second engaging portion to a second state in which the rotor rotates by engagement therebetween. The rotor urges the follower in the opposite direction when the first engageable member and the second engageable member are not engaged with each other, by the opposite rotation.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 11, 2021
    Inventors: Masaki Tanaka, Noritomo Yamaguchi
  • Patent number: 10912159
    Abstract: An induction heating device and an induction heating method are provided. The entire areas to be heated of the workpiece can be uniformly heated to a predetermined high temperature, and uniform heating is possible even when the workpiece deforms in a non-uniform manner during heating. When areas to be heated are established on a workpiece so as to extend in one direction and the areas to be heated are induction-heated, the deformation amount on one edge of the areas to be heated is different from that on the other. This induction heating device includes; heating coils facing a portion of the areas to be heated when the workpiece is induction-heated; and a relative transfer means for transferring the workpiece and the heating coils along one direction in a relative manner, and the heating coils are disposed so as to correspond to the areas to be heated during the heating period.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: February 2, 2021
    Assignee: NETUREN CO., LTD.
    Inventors: Hitoshi Nakatsu, Masato Yoshioka, Yoshimasa Tanaka, Tsutomu Ito, Kenji Koyanagi, Masaki Sagae, Tatsuya Ishii, Yoshitaka Misaka, Yasuharu Ogawa
  • Patent number: 10910950
    Abstract: A power conversion device including an intermediate capacitor that carries out a charging and discharging operation and a voltage sensor that detects a voltage of the intermediate capacitor, and including a current sensor that detects a current flowing in a reactor, and an abnormality determining unit that determines that there is an abnormality of the voltage sensor using a current value calculated based on a detected value from the current sensor, wherein a gain error, an offset error, and a sticking error of the voltage sensor can be detected.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: February 2, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Nobuhiro Kihara, Yuta Komatsu, Takashi Kaneyama, Masaki Sawamura, Noriyuki Wada, Yuya Tanaka
  • Publication number: 20210028378
    Abstract: Provided is an organic EL display device including a resin substrate layer, a TFT layer provided on the resin substrate layer, and a light-emitting element that is provided on the TFT layer and constitutes a display region. The resin substrate layer includes a first resin layer, an inorganic layer, and a second resin layer, which are provided in that order from a side opposite to the TFT layer. The interior of the first resin layer contains a plurality of air bubbles.
    Type: Application
    Filed: March 20, 2018
    Publication date: January 28, 2021
    Inventors: TETSUO FUJITA, YUKINOBU NAKATA, HIROSHI SUGIMOTO, TAKEHISA SAKURAI, MASAKI FUJIWARA, TOKUO YOSHIDA, SHOJI OKAZAKI, TETSUNORI TANAKA
  • Publication number: 20210017194
    Abstract: To provide novel pesticides, especially insecticides or acaricides. A condensed heterocyclic compound represented by the formula (1) or its salt or an N-oxide thereof: wherein D substituted with —S(O)nR1 is a ring represented by any one of D1, D2 and D3, Q is a ring represented by any one of Q1, Q2, Q3 and Q4, R1 is C1-C6 alkyl, C1-C6 haloalkyl, (C1-C6) alkyl optionally substituted with R1a, C2-C6 alkenyl, C2-C6 haloalkenyl, C2-C6 alkynyl, C2-C6 haloalkynyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C3-C6 cycloalkyl (C1-C6) alkyl, C3-C6 halocycloalkyl (C1-C6) alkyl or hydroxy (C1-C6) alkyl, R1a is C1-C8 alkoxycarbonyl, and n is an integer of 0, 1 or 2.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 21, 2021
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventors: Takao KUDO, Yukihiro MAIZURU, Ayano TANAKA, Kenkichi NOTO, Hiroto MATSUI, Masaki KOBAYASHI