Patents by Inventor Masatoshi Nakamura

Masatoshi Nakamura 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: 20220144987
    Abstract: First embodiment of a (meth)acrylic copolymer in the present invention includes following: a (meth)acrylic copolymer having at least one kind of constitutional unit selected from the group consisting of a constitutional unit (A1) having at least one kind of structure (I) selected from the group consisting of structures represented by the following formula (1), formula (2), or formula (3) and a constitutional unit (A2) having a triorganosilyloxycarbonyl group and a constitutional unit (B) derived from a macromonomer (b): (where, X represents —O—, —S—, or —NR14—, R14 represents a hydrogen atom or an alkyl group, R1 and R2 each represent a hydrogen atom or an alkyl group having from 1 to 10 carbon atoms, R3 and R5 each represent an alkyl group having from 1 to 20 carbon atoms, a cycloalkyl group, or an aryl group, and R4 and R6 each represent an alkylene group having from 1 to 10 carbon atoms).
    Type: Application
    Filed: December 1, 2021
    Publication date: May 12, 2022
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kana TANIGUCHI, Sho KATSUMATA, Junichi NAKAMURA, Masatoshi URA, Yoshihiro KAMON, Takafumi ASAI
  • Publication number: 20220052484
    Abstract: A connector includes a housing fitted into or detached from a mating housing, and a fitting detection member assembled to a member housing section of the housing and detecting a fitting completion. The fitting detection member includes a locked portion locked to or detached from a lock section of a flexible lock arm, and a flexible arm section provided with a slip-off prevention locking section locked to or detached from a locking protrusion of the member housing section, and when fitting of both the housings is released, the flexible arm section is bent and deformed in a direction in which a locking margin between the locking protrusion of the member housing section and the slip-off prevention locking section of the flexible arm section increases.
    Type: Application
    Filed: August 10, 2021
    Publication date: February 17, 2022
    Applicant: Yazaki Corporation
    Inventors: Masatoshi NAKAMURA, Jun ISHIKAWA
  • Publication number: 20220052352
    Abstract: An electrochemical cell unit according to the present disclosure includes a flat plate type membrane electrode assembly having a structure in which an electrolyte membrane, a first electrode layer disposed on a first surface of the electrolyte membrane, and a second electrode layer disposed on a second surface of the electrolyte membrane are laminated; a first current collector in contact with the first electrode layer of the membrane electrode assembly; an interconnector electrically connected to the first current collector, a second current collector in contact with the second electrode layer of the membrane electrode assembly; and an outer peripheral part made of a metal material that surrounds an outer periphery of the first electrode layer together with the interconnector and the electrolyte membrane to form a gas introduction space for guiding internal gas to the first electrode layer.
    Type: Application
    Filed: October 27, 2021
    Publication date: February 17, 2022
    Inventors: TAKASHI KAKUWA, HIROMI KITA, MASATOSHI NAKAMURA
  • Patent number: 11249237
    Abstract: There is provided an optical device that provides a high quality image. The optical device includes a first light guiding member that has first through sixth surfaces and a first deflecting means. The first, second, and fifth surfaces are opposed to the third, fourth, and sixth surfaces, respectively. The optical device further includes a second light guiding member that has seventh through twelfth surfaces and a second deflecting means. The seventh, eighth, and eleventh surfaces are opposed to the ninth, tenth, and twelfth surfaces, respectively. Light that enters from the fifth surface is totally reflected within the first light guiding member, is deflected by the first deflecting means, is emitted from the third surface, enters the eighth surface, is totally reflected between the seventh surface and the ninth surface, is deflected by the second deflecting means, and is emitted from the seventh surface.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: February 15, 2022
    Assignee: SONY CORPORATION
    Inventors: Masatoshi Nakamura, Ichiro Tsujimura, Tatsuya Nakatsuji, Takatoshi Matsuyama
  • Publication number: 20220003989
    Abstract: A virtual image display apparatus according to the present disclosure includes: a plurality of image forming elements (11 and 12); and a plurality of eyepiece optical systems (21 and 22). The plurality of image forming elements (11 and 12) includes a first image forming element (11) and a second image forming element (12). The first image forming element (11) outputs a first image to a front region in a visual field of a viewer. The second image forming element (12) outputs a second image to a peripheral region in the visual field of the viewer. The second image is different from the first image. The plurality of image forming elements (11 and 12) outputs a plurality of images to cause an image region of at least a portion of each of the plurality of images to overlap with the first image. The plurality of images includes the first and second images. The plurality of eyepiece optical systems (21 and 22) is provided in association with the plurality of respective image forming elements (11 and 12).
    Type: Application
    Filed: September 24, 2019
    Publication date: January 6, 2022
    Inventors: MASATOSHI NAKAMURA, MITSUHARU MATSUMOTO, TAKATOSHI MATSUYAMA, MAMORU SUZUKI, SUSUMU ICHIKAWA
  • Publication number: 20210396978
    Abstract: An observation optical system according to the present invention includes a reflective optical device (30), a first lens group (10), and a second lens group (20). The reflective optical device (30) includes at least one reflection surface (31). The first lens group (10) is disposed at a position closer to an entrance pupil (E.P.) than the reflective optical device (30). The first lens group (10) forms an intermediate image (40) of a virtual image on the reflection surface (31) or at a position closer to the entrance pupil (E.P.) than the reflection surface (31). The intermediate image (40) of the virtual image corresponds to an image displayed on an image display unit (2). The second lens group (20) is disposed on an optical path after light passes through the first lens group (10), the intermediate image (40), and the reflective optical device (30) in order in a case where ray tracing is performed from an entrance pupil (E.P.) side.
    Type: Application
    Filed: October 18, 2019
    Publication date: December 23, 2021
    Inventors: SUSUMU ICHIKAWA, TAKATOSHI MATSUYAMA, MASATOSHI NAKAMURA, MAMORU SUZUKI, MITSUHARU MATSUMOTO
  • Publication number: 20210367371
    Abstract: A connector includes a female housing and a male housing. An arm portion of the female housing engages with an engagement projection of the male housing. In a state where the engagement projection is fitted to an opening of the arm portion, a gap for insertion of a jig exists in the opening at a lateral side of the engagement projection. A groove-shaped release operation portion is formed on the male housing at a lateral side of the engagement projection. An inclined surface is formed at a rear end of the release operation portion, and a wall portion is formed on a rear side of the inclined surface. The arm portion engaged with the engagement projection can be released with a simple operation including inserting the jig into the release operation portion from the gap in the opening and pushing the jig in the same direction as the insertion direction.
    Type: Application
    Filed: April 14, 2021
    Publication date: November 25, 2021
    Applicant: Yazaki Corporation
    Inventors: Masatoshi NAKAMURA, Nobuyuki Mukoujima
  • Publication number: 20210302627
    Abstract: An eyepiece according to the present disclosure includes a first lens and a second lens that are opposed to each other. The first lens includes a first Fresnel lens surface formed at least in a peripheral region of a lens surface that is opposed to the second lens. The second lens includes a second Fresnel lens surface formed at least in a peripheral region of a lens surface that is opposed to the first lens.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 30, 2021
    Inventors: Mamoru SUZUKI, Takatoshi MATSUYAMA, Susumu ICHIKAWA, Masatoshi NAKAMURA, Mitsuharu MATSUMOTO
  • Publication number: 20210294091
    Abstract: A display apparatus of the present disclosure includes an eyepiece display unit including an image display device and an eyepiece optical system that guides a display image displayed on the image display device to an eye point, in which an image magnification by the eyepiece optical system is twice or more, the eyepiece optical system is a coaxial system including a plurality of single lenses, at least one of the plurality of single lenses is an aspherical lens including a resin material, and the image display device displays, as the display image, an image for correction of distortion and chromatic aberration of magnification generated in the eyepiece optical system.
    Type: Application
    Filed: July 17, 2019
    Publication date: September 23, 2021
    Inventors: MITSUHARU MATSUMOTO, MAMORU SUZUKI, SUSUMU ICHIKAWA, TAKATOSHI MATSUYAMA, MASATOSHI NAKAMURA
  • Publication number: 20210199975
    Abstract: A display apparatus of the present disclosure includes: a left eyepiece display unit including a left-eye image display device and a left eyepiece optical system guiding a displayed left-eye display image to a left eye; and a right eyepiece display unit including a right-eye image display device and a right eyepiece optical system guiding a displayed right-eye display image to a right eye, and an image magnification upon observation by both eyes is twice or more. The left eyepiece optical system and the right eyepiece optical system each include a plurality of single lenses, and at least one of the single lenses is a free-form surface lens including a resin material. At least one of the single lenses is arranged in at least one of an eccentric state or a rotated state with respect to an optical axis of the left-eye image display device or the right-eye image display device.
    Type: Application
    Filed: July 11, 2019
    Publication date: July 1, 2021
    Inventors: Mitsuharu MATSUMOTO, Mamoru SUZUKI, Susumu ICHIKAWA, Takatoshi MATSUYAMA, Masatoshi NAKAMURA
  • Publication number: 20210143580
    Abstract: A lever-type connector includes: a first housing; a second housing capable of fitted to and removed from the first housing; a lever rotatably supported by the second housing for fitted to and removed the first housing and the second housing by a rotation operation; a support shaft provided on the second housing; a bearing portion provided on the lever and comprising a shaft sliding groove for sliding the support shaft; a cam follower provided on the lever; a cam groove provided on the first housing, the cam groove to which the cam follower is engageable; a guide protrusion provided on the second housing, and a guide groove provided on the lever, the guide groove to which the guide protrusion is engageable. When the first housing and the second housing are completely fitted by the rotation operation of the lever, the lever becomes slidable with respect to the second housing.
    Type: Application
    Filed: January 21, 2021
    Publication date: May 13, 2021
    Applicants: YAZAKI CORPORATION, NISSAN MOTOR CO., LTD.
    Inventors: Masatoshi NAKAMURA, Kazuto Ohtaka, Takahiro Yoneda, Aritsugu Hirose
  • Publication number: 20210074885
    Abstract: A semiconductor light-emitting element according to an embodiment of the present technology includes a first electrode, a second electrode, a light-emitting layer constituted by a semiconductor, and an optical functional film. The light-emitting layer includes a first surface that is connected to the first electrode and has a first convexo-concave structure, a second surface that is connected to the second electrode, has a second convexo-concave structure, and is opposite to the first surface, and a peripheral surface that continuously connects the first surface and the second surface to each other. The optical functional film coats the second surface and the peripheral surface and includes a reflecting layer capable of reflecting light emitted by the light-emitting layer.
    Type: Application
    Filed: November 9, 2018
    Publication date: March 11, 2021
    Inventors: MASATOSHI NAKAMURA, MAMORU SUZUKI
  • Patent number: 10910757
    Abstract: A connector includes a housing which is capable of holding one or more electric wires and a cover which is attached to an end part of the housing while sliding in a sliding direction and guides the electric wire extending from the end part of the housing in a predetermined direction.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: February 2, 2021
    Assignee: Yazaki Corporation
    Inventors: Masatoshi Nakamura, Kazuto Ohtaka
  • Publication number: 20200325941
    Abstract: A rotary connector includes: a first housing; a second housing; a bayonet ring including a locked portion to be locked to a locking portion of the first housing, which forms a bonded state by rotating by a predetermined angle in a ready state, so that its rotation is prevented; and a connector position assurance that is prevented from moving from a first position in the ready state, and in the bonded state, that is moveable to a second position and maintains a state in which the locked portion is locked to the locking portion.
    Type: Application
    Filed: April 14, 2020
    Publication date: October 15, 2020
    Applicant: Yazaki Corporation
    Inventors: Masatoshi NAKAMURA, Akihiro TSURUTA, Nobuyuki MUKOUJIMA
  • Publication number: 20200150332
    Abstract: An object of the present invention is to provide an optical device, an image display device, and a display device that can provide an image of high image quality.
    Type: Application
    Filed: April 11, 2018
    Publication date: May 14, 2020
    Inventors: MASATOSHI NAKAMURA, ICHIRO TSUJIMURA, TATSUYA NAKATSUJI, TAKATOSHI MATSUYAMA
  • 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: 20200044263
    Abstract: A solid oxide fuel cell including unit cells, including: a pair of interconnectors for electrically connecting the unit cells; a membrane-electrode assembly including an electrolyte membrane and a pair of electrode layers disposed with the electrolyte membrane therebetween; a pair of current collectors disposed between the electrode layers and the interconnectors so as to be in contact with the pair of electrode layers and the pair of interconnectors, respectively, and electrically connecting the pair of electrode layers and the pair of interconnectors; and elastic bodies biasing at least one current collector of the pair of current collectors toward a corresponding electrode layer and made of austenitic stainless steel.
    Type: Application
    Filed: July 19, 2019
    Publication date: February 6, 2020
    Inventors: TAKASHI KAKUWA, HIROMI KITA, TOMOYA KAMATA, MASATOSHI NAKAMURA, TOMOHIRO KUROHA
  • Publication number: 20200044272
    Abstract: A cell including: a pair of interconnectors for electrically connecting unit cells; a membrane-electrode assembly disposed between the interconnectors; a pair of current collectors, each of which includes an abutting surface abutting against a corresponding one of the electrode layers and a first base material surface being in contact with a corresponding one of the interconnectors and electrically connecting the corresponding of the electrode layers and the corresponding one of the interconnectors; and elastic bodies biasing the abutting surface of at least one current collector toward a corresponding one of the electrode layers. The elastic bodies includes: a second base material surface being in contact with the first base material surface; and an elastic body protruding portion supporting the abutting surface and protruding from the second base material surface toward the corresponding one of the electrode layers to bias the abutting surface toward the corresponding one of the electrode layers.
    Type: Application
    Filed: July 15, 2019
    Publication date: February 6, 2020
    Inventors: TAKASHI KAKUWA, HIROMI KITA, TOMOYA KAMATA, MASATOSHI NAKAMURA, TOMOHIRO KUROHA
  • Patent number: 10516229
    Abstract: A locking structure LS includes: a locking protrusion provided on a front holder and formed to protrude in a vertical direction; locking arms provided on a female housing and formed to extend in a fitting direction; and regulating surfaces provided to face the locking protrusion in a width direction and regulate movement of the locking arms in the width direction. The locking arms are inserted between the locking protrusion and the regulating surfaces, have locking portions formed to partially overlap with the locking protrusions, and can be elastically deformed in the vertical direction with respect to the female housing.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: December 24, 2019
    Assignee: YAZAKI CORPORATION
    Inventors: Masatoshi Nakamura, Kazuto Ohtaka, Yuta Masuda
  • Patent number: 10502950
    Abstract: With an image display apparatus, such as a head-mounted display, the eyes of a user observe an image displayed on a display panel through an eyepiece in an enlarged manner. A microlens array sheet that is one example of an optical element functioning as an optical lowpass filter is inserted in an optical path running from the display panel to the eyepiece.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: December 10, 2019
    Assignees: SONY INTERACTIVE ENTERTAINMENT INC., SONY CORPORATION
    Inventors: Koji Kikuchi, Takamasa Araki, Masatoshi Nakamura, Shotaro Tada, Rei Miyazaki