Patents by Inventor Masatoshi Takeda

Masatoshi Takeda 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: 10852555
    Abstract: A head-mounted display apparatus according to the present disclosure includes an image generating module, a first deflecting element including a first deflecting portion configured to deflect, along a second optical axis intersecting the first optical axis, imaging light from the image generating module, and a second deflecting portion configured to deflect the imaging light along a third optical axis, a first diffraction element configured to diffract the imaging light from the second deflecting portion, and a second diffraction element configured to diffract the imaging light from the first diffraction element. A distance along the first optical axis between the image generating module and the first deflecting portion is longer than a distance along the third optical axis between the first diffraction element and the second deflecting portion.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: December 1, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takashi Takeda, Takeshi Koshihara, Masatoshi Yonekubo, Mitsutaka Ide
  • Publication number: 20200333610
    Abstract: The image display device includes an image generating unit that emits first image light, a pupil expanding element that expands a diameter of a light flux included in the first image light from the image generating unit to obtain second image light, a first light condensing optical system that condenses the second image light and forms an intermediate image, and a second light condensing optical system that condenses light from the intermediate image and generates a virtual image on eye of a viewer, in a plane including at least the image generating unit, the pupil expanding element, and the eye of the viewer, a maximum emission angle of the first image light is smaller than a maximum viewing angle of the virtual image, and the diameter of the light flux included in the second image light is greater than that of a light flux included in the virtual image.
    Type: Application
    Filed: July 1, 2020
    Publication date: October 22, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masatoshi YONEKUBO, Osamu YOKOYAMA, Takashi TAKEDA, Mitsutaka IDE, Daisuke ISHIDA
  • Publication number: 20200317659
    Abstract: The aim of the present invention is to provide a method capable of producing an optically active pyrimidinamide derivative on an industrial scale. Compound (I) or a salt thereof is subjected to an asymmetric reduction reaction, the obtained compound (II) or a salt thereof is subjected to a deprotection reaction, and the obtained compound (III) or a salt thereof is reacted with compound (VI) or a salt thereof to obtain compound (V) or a salt thereof. wherein each symbol is as defined in the specification.
    Type: Application
    Filed: May 29, 2018
    Publication date: October 8, 2020
    Inventors: Sayuri HIRANO, Yoshiyuki TAKEDA, Koji NAKAMOTO, Motoki IKEUCHI, Masato KITAYAMA, Masatoshi YAMADA, Jun-ichi KAWAKAMI
  • Patent number: 10739601
    Abstract: The image display device includes an image generating unit that emits first image light, a pupil expanding element that expands a diameter of a light flux included in the first image light from the image generating unit to obtain second image light, a first light condensing optical system that condenses the second image light and forms an intermediate image, and a second light condensing optical system that condenses light from the intermediate image and generates a virtual image on eye of a viewer, in a plane including at least the image generating unit, the pupil expanding element, and the eye of the viewer, a maximum emission angle of the first image light is smaller than a maximum viewing angle of the virtual image, and the diameter of the light flux included in the second image light is greater than that of a light flux included in the virtual image.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: August 11, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masatoshi Yonekubo, Osamu Yokoyama, Takashi Takeda, Mitsutaka Ide, Daisuke Ishida
  • Patent number: 10717447
    Abstract: The present invention includes: a visual perception target determination unit for determining a visual perception target by using a saliency model for determining that an object to be visually perceived at a glance is a visual perception target, a surprise model for determining that an object behaving abnormally is a visual perception target, and a normative model for determining that an object to be visually perceived by a viewing action of a driver serving as a norm is a visual perception target; and a visual guidance unit for determining whether or not an overlooked visual perception to which a line-of-sight direction detected by a line-of-sight detection unit is not directed is present, and guiding a line-of-sight of a driver toward the overlooked visual perception target, when the overlooked visual perception target is present.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 21, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Tadashi Isa, Masatoshi Yoshida, Richard Veale, Yusaku Takeda, Toshihiro Hara, Koji Iwase, Atsuhide Kishi, Kazuo Nishikawa, Takahide Nozawa
  • Publication number: 20200133004
    Abstract: A head-mounted display apparatus according to the present disclosure includes an image generating module, a first deflecting element including a first deflecting portion configured to deflect, along a second optical axis intersecting the first optical axis, imaging light from the image generating module, and a second deflecting portion configured to deflect the imaging light along a third optical axis, a first diffraction element configured to diffract the imaging light from the second deflecting portion, and a second diffraction element configured to diffract the imaging light from the first diffraction element. A distance along the first optical axis between the image generating module and the first deflecting portion is longer than a distance along the third optical axis between the first diffraction element and the second deflecting portion.
    Type: Application
    Filed: October 29, 2019
    Publication date: April 30, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi TAKEDA, Takeshi KOSHIHARA, Masatoshi YONEKUBO, Mitsutaka IDE
  • Publication number: 20200079918
    Abstract: There are provided a method of producing reclaimed carbon fibers in which, even if a carbon fiber reinforced resin is not heated at 800° C., or higher, pieces of carbon fiber base material that are contained in the carbon fiber reinforced resin can be directly collected, and the variation in the resin residue content in the collected pieces of carbon fiber base material can be reduced, a device for producing reclaimed carbon fibers that can be used in the production method, and a method of producing a carbon fiber reinforced resin in which reclaimed carbon fibers can be effectively used.
    Type: Application
    Filed: November 13, 2019
    Publication date: March 12, 2020
    Applicant: Shinryo Corporation
    Inventors: Hirokazu TOYOSHIMA, Tooru TAKEDA, Takahisa HARA, Koujirou MASUDA, Yasuo YAMAGUCHI, Masatoshi NAKAMURA, Yousuke MARUTA, Masaki SATOU
  • Publication number: 20200062116
    Abstract: A vehicle control device includes a depression amount detection unit, a depression speed detection unit, a reaction force setting unit, and a reaction force generation unit. The reaction force setting unit sets a value of a reaction force in a manner of separating characteristics into advancement characteristics and return characteristics.
    Type: Application
    Filed: December 4, 2017
    Publication date: February 27, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Sho YABUNAKA, Masatoshi TAKAYAMA, Yusaku TAKEDA
  • Publication number: 20190390384
    Abstract: A sewing machine includes a controller and a thread cutter which cuts an upper thread passed through a sewing needle and which has a fixed knife, a moving knife, and a driving source to drive the moving knife. The moving knife cuts the upper thread by guiding the upper thread. The moving knife has a through-hole into which the sewing needle is loosely insertable and includes a thread cutting portion in an inner edge portion of the through-hole. By controlling the driving source, the controller makes a stitch point of a first stitch of the sewing needle with respect to the through-hole of the moving knife, and moves the moving knife to a position where the fixed knife and the moving knife cut a sewing start end portion of the upper thread after a stitch point of a second stitch of the sewing needle.
    Type: Application
    Filed: June 24, 2019
    Publication date: December 26, 2019
    Applicant: JUKI CORPORATION
    Inventors: Masatoshi NOMATSU, Daisuke KATO, Toshiyuki TAKEDA
  • Patent number: 10493822
    Abstract: A radiant heater device includes: a heater main body having a heating portion that generates heat by being supplied with electric power to radiate radiation heat due to the heat supplied from the heating portion; an output control unit that controls an output of the heating portion; and a maximum output determination unit that determines an upper limit of the output of the heating portion depending on a heat load around the heater main body. The output control unit controls the output of the heating portion depending on the heat load not to exceed the upper limit of the output determined by the maximum output determination unit.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: December 3, 2019
    Assignee: DENSO CORPORATION
    Inventors: Yasuhiro Sagou, Takuya Kataoka, Asami Okamoto, Manabu Maeda, Koji Ota, Hiroyuki Sakane, Akira Oga, Masatoshi Nakashima, Hiroshi Takeda, Masataka Kinoshita, Hideaki Kako, Kimitake Ishikawa
  • Patent number: 10495883
    Abstract: An image display device with which it is possible to visually recognize an image while securing the see-through property regardless of eye movements and changes in interpupillary distance, with which it is possible to display a large-size image with high quality, and which is small, has excellent wearability, and has an excellent external appearance.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: December 3, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Osamu Yokoyama, Masatoshi Yonekubo, Takashi Takeda, Daisuke Ishida, Mitsutaka Ide, Hidemitsu Sorimachi
  • Publication number: 20190361479
    Abstract: An operation device in which in-vehicle devices are controlled in accordance with a rotation angle of an input unit operated by a manual operation of a driver, which includes a commander rotatable about a rotation shaft, a rotation angular speed calculation unit that detects a rotation angular speed of the commander, a motor that gives an operation reaction force for each predetermined rotation angle of the commander, and an ECU that controls the operation reaction force given by the motor, wherein the ECU changes the operation reaction force in accordance with the rotation angular speed detected by the rotation angular speed calculation unit.
    Type: Application
    Filed: February 16, 2018
    Publication date: November 28, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Sho YABUNAKA, Masatoshi TAKAYAMA, Yusaku TAKEDA
  • Patent number: 10345545
    Abstract: An optical fiber cable is provided. The cable includes: an optical fiber core having a central axis; a presser winding covering the optical fiber core; a sheath covering the presser winding; two tension members in the sheath and facing each other with the central axis therebetween; and two rip cords facing each other with the central axis therebetween and being in direct contact with the sheath and the presser winding. The optical fiber core includes a plurality of optical fiber tapes arranged around the central axis and having mutually different stripe ring marks applied thereon. Each optical fiber tapes includes a plurality of optical fibers intermittently adhered to each other.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: July 9, 2019
    Assignee: FUJIKURA LTD.
    Inventors: Tomoaki Kaji, Masatoshi Ohno, Daiki Takeda, Ken Osato, Masayoshi Yamanaka, Naoki Okada
  • Patent number: 10283692
    Abstract: A power generation system includes: a heat source having a temperature being changed over time; a flow passage through which a heat medium heated by the heat source passes; a power generation device including a power generation element and a first electrode, the power generation element being electrically polarized by temperature change thereof depending on temperature change of the heat medium, the first electrode extracting electric power from the power generation element; a temperature detection device being disposed on an upstream side relative to the power generation device in the flow passage and detecting the temperature of the heat medium; a voltage application device that applies voltage to the power generation element; and a control device that activates the voltage application device when the temperature increase of the heat medium has been detected and deactivates the voltage application unit when the temperature decrease of the heat medium has been detected.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: May 7, 2019
    Assignees: DAIHATSU MOTOR CO., LTD., NATIONAL UNIVERSITY CORPORATION NAGAOKA OF TECHNOLOGY
    Inventors: Satoru Yamanaka, Yoonho Kim, Takashi Ogawa, Akira Nakajima, Juyoung Kim, Hirohisa Tanaka, Tadachika Nakayama, Masatoshi Takeda, Noboru Yamada, Koichi Niihara
  • Patent number: 9979325
    Abstract: A power-generating system includes a heat source which is able to produce temporal temperature variation; a first device which is able to produce temporal temperature variation based on the temperature change of the heat source and in which polarization occurs; a second device for taking out a net generating power from the first device; a temperature sensor that detects the temperature of the first device; a voltage application device that applies a voltage to the first device; and a control unit for activating the voltage application device on detecting an increase in temperature of the first device and for stopping the voltage application device on detecting a decrease in temperature of the first device by the temperature sensor.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: May 22, 2018
    Assignees: DAIHATSU MOTOR CO., LTD., National University Corporation Nagaoka University of Technology
    Inventors: Yoonho Kim, Satoru Yamanaka, Juyoung Kim, Hirohisa Tanaka, Tadachika Nakayama, Masatoshi Takeda, Noboru Yamada, Koichi Niihara
  • Patent number: 9780283
    Abstract: A thermoelectric conversion element that can efficiently make a temperature difference across a thermoelectric conversion material is provided. In the thermoelectric conversion element, on a first surface of a thermoelectric conversion module comprising a P-type thermoelectric element, an N-type thermoelectric element, and an electrode, a thermally conductive resin layer A and a thermally conductive resin layer B having a lower thermal conductivity than the thermally conductive resin layer A are provided in an alternating manner so as to be in direct contact with the first surface, and on a second surface on the opposite side of the first surface of the thermoelectric conversion module, a thermally conductive resin layer a and a thermally conductive resin layer b having a lower thermal conductivity than the thermally conductive resin layer a are provided in an alternating manner so as to be in direct contact with the second surface.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: October 3, 2017
    Assignees: NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY, LINTEC CORPORATION
    Inventors: Masatoshi Takeda, Tsuyoshi Mutou, Takeshi Kondo
  • Patent number: 9671809
    Abstract: In a reactive power compensation device, a control unit controls a magnitude of reactive power to be output by a reactive power output unit, based on a detected system voltage and one or more control parameters in a first operation mode. In a second operation mode, the control unit changes the magnitude of the reactive power to be output by the reactive power output unit to a power system in an output change period, calculates system impedances of the power system at a plurality of detection time points within the output change period, based on change amounts of the system voltage detected at the plurality of detection time points and corresponding change amounts of the reactive power, and, when a variation in the calculated system impedances is within an acceptable range, adjusts the one or more control parameters, based on the calculated system impedances.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: June 6, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akihiro Matsuda, Shinichi Ogusa, Masatoshi Takeda
  • Patent number: 9627997
    Abstract: A power-generating system includes a heat source which is able to produce temporal temperature variation, a first device in which polarization occurs based on the temperature change of the heat source, and a second device for taking out a net generating power from the first device, wherein 80% or higher of the total surface area of the first device is heated and/or cooled with the heat source.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: April 18, 2017
    Assignees: DAIHATU MOTOR CO., LTD, NATIONAL UNIVERSITY COORORATION NAGAOKA UNIVERSITY OF TECHNOLOGY
    Inventors: Yoonho Kim, Juyoung Kim, Satoru Yamanaka, Takeshi Serizawa, Hirohisa Tanaka, Tadachika Nakayama, Masatoshi Takeda, Noboru Yamada, Koichi Niihara
  • Publication number: 20160284964
    Abstract: A power generation system includes: a heat source having a temperature being changed over time; a flow passage through which a heat medium heated by the heat source passes; a power generation device including a power generation element and a first electrode, the power generation element being electrically polarized by temperature change thereof depending on temperature change of the heat medium, the first electrode extracting electric power from the power generation element; a temperature detection device being disposed on an upstream side relative to the power generation device in the flow passage and detecting the temperature of the heat medium; a voltage application device that applies voltage to the power generation element; and a control device that activates the voltage application device when the temperature increase of the heat medium has been detected and deactivates the voltage application unit when the temperature decrease of the heat medium has been detected.
    Type: Application
    Filed: November 20, 2014
    Publication date: September 29, 2016
    Applicants: DAIHATSU MOTOR CO., LTD., NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY
    Inventors: Satoru YAMANAKA, Yoonho KIM, Takashi OGAWA, Akira NAKAJIMA, Juyoung KIM, Hirohisa TANAKA, Tadachika NAKAYAMA, Masatoshi TAKEDA, Noboru YAMADA, Koichi NIIHARA
  • Publication number: 20160284963
    Abstract: A thermoelectric conversion element that can efficiently make a temperature difference across a thermoelectric conversion material is provided. In the thermoelectric conversion element, on a first surface of a thermoelectric conversion module comprising a P-type thermoelectric element, an N-type thermoelectric element, and an electrode, a thermally conductive resin layer A and a thermally conductive resin layer B having a lower thermal conductivity than the thermally conductive resin layer A are provided in an alternating manner so as to be in direct contact with the first surface, and on a second surface on the opposite side of the first surface of the thermoelectric conversion module, a thermally conductive resin layer a and a thermally conductive resin layer b having a lower thermal conductivity than the thermally conductive resin layer a are provided in an alternating manner so as to be in direct contact with the second surface.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 29, 2016
    Applicants: NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY, LINTEC CORPORATION
    Inventors: Masatoshi TAKEDA, Tsuyoshi MUTOU, Takeshi KONDO