Patents by Inventor Takahiro Matsuo

Takahiro Matsuo 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: 20210135178
    Abstract: An object of an embodiment of the disclosure is to provide a nonaqueous electrolyte secondary battery separator having an excellent withstand voltage property. A nonaqueous electrolyte secondary battery separator in accordance with an embodiment of the disclosure includes a polyolefin porous film having a thickness of 4 ?m to 40 ?m. The polyolefin porous film does not break in a puncture test in which a pin having a diameter of 1 mm and a tip radius of 0.5R is thrust at a speed of 1 mm/s to a depth of 2.5 mm.
    Type: Application
    Filed: November 3, 2020
    Publication date: May 6, 2021
    Inventors: Takahiro MATSUO, Yoshinori SATO, Atsuhiro TAKATA
  • Publication number: 20210094416
    Abstract: Provided are a speed changer device, a forward/reverse switchover device for converting output of the speed changer device into forward traveling power and reverse traveling power, a rear wheel differential mechanism for inputting output of the forward/reverse switchover device and transmitting it to rear wheels, and a gear transmission mechanism for transmitting power of an output shaft of the forward/reverse switchover device to an input shaft of the rear wheel differential mechanism. A transmission case is separable into a front case portion accommodating the speed changer device and a rear case portion accommodating the forward/reverse switchover device, the rear wheel differential mechanism and the gear transmission mechanism. The gear transmission mechanism is detachably provided at a portion of the inside of the transmission case which portion corresponds to a front end portion of the rear case portion.
    Type: Application
    Filed: September 22, 2020
    Publication date: April 1, 2021
    Applicant: KUBOTA CORPORATION
    Inventors: Tomonari TSUCHIDA, Ryoma IWASE, Tomoyuki TANAKA, Takahiro MATSUO, Hidetoshi HANA
  • Publication number: 20200356042
    Abstract: An exposure device includes: a first lens array unit and a second lens array unit each including a plurality of optical elements formed in a formation surface with respective optical axes parallel to each other, the formation surface of the first lens array unit being not perpendicular to the optical axes; a first lens array holder and a second lens array holder that hold the first lens array unit and the second lens array unit with the respective optical axes of the plurality of optical elements parallel to each other; and a light source assembly in which optical element groups each including a plurality of light-emitting devices aligned in a direction perpendicular to the optical axes are disposed at different positions in a direction parallel to the optical axes, wherein the first lens array unit is provided with a first seating surface and a second seating surface.
    Type: Application
    Filed: April 30, 2020
    Publication date: November 12, 2020
    Applicant: Konica Minolta, Inc.
    Inventors: Takahiro MATSUO, Atsushi NAGAOKA, Hajime TANIGUCHI, Ryo HASEGAWA
  • Publication number: 20200241440
    Abstract: An optical writing device includes: an image carrier; an exposer that exposes a curved surface of the image carrier; and a control circuit that controls the exposer, wherein the exposer includes a plurality of light-emitting element groups having different positional relationships from one another with the image carrier, and has a configuration that is adjusted in accordance with at least one of an angle at which light reaching the curved surface of the image carrier from each light-emitting element group enters the image carrier, and a distance of each light-emitting element group from the image carrier.
    Type: Application
    Filed: January 7, 2020
    Publication date: July 30, 2020
    Applicant: Konica Minolta, Inc.
    Inventors: Ryo HASEGAWA, Takahiro MATSUO, Hajime TANIGUCHI, Atsushi NAGAOKA
  • Patent number: 10642184
    Abstract: An optical writing device includes: a light emitting member on which a plurality of light emitting elements are arranged in a row; and a holding member on which a plurality of projections are arranged at intervals. In the optical writing device, a rear surface of the light emitting member opposite to a light emitting surface of the light emitting member contacts tops of the projections, and the light emitting member is fixed to the holding member via adhesives disposed on two opposite sides of each of the projections in a short direction of the holding member on the holding member so as to be separated from the projection.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: May 5, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Takahiro Matsuo, Atsushi Nagaoka, Masahiko Takahashi
  • Publication number: 20200133156
    Abstract: An exposure apparatus includes: light source substrates on which light sources aligned in a first direction are aligned in rows and formed on a formation surface; an optical element that causes light emitted from the light sources to form an image on a surface of an image carrier that has a cylindrical shape and rotates with a rotational symmetry axis parallel to the first direction; a microlens array in which the optical elements aligned in the first direction are aligned in rows; and a holder that holds the light source substrates, wherein in each of the light source substrates, at least two of the light sources are formed at different positions in a second direction intersecting with the first direction and being parallel to the formation surface, and the holder holds the light source substrates to cause the formation surfaces of the light source substrates to cross each other.
    Type: Application
    Filed: October 10, 2019
    Publication date: April 30, 2020
    Inventors: Takahiro Matsuo, Hajime Taniguchi, Atsushi Nagaoka, Ryo Hasegawa
  • Publication number: 20200099032
    Abstract: Provided is a nonaqueous electrolyte secondary battery separator that is excellent in rate characteristic maintenance ratio of a nonaqueous electrolyte secondary battery after a cycle of charge and discharge of the nonaqueous electrolyte secondary battery. A nonaqueous electrolyte secondary battery separator including: a polyolefin porous film, the nonaqueous electrolyte secondary battery separator having a photoelastic coefficient of not less than 3.0×10?11 m2/N and not more than 20×10?11 m2/N with respect to light having a wavelength of 590 nm.
    Type: Application
    Filed: November 15, 2019
    Publication date: March 26, 2020
    Inventor: Takahiro MATSUO
  • Publication number: 20190310566
    Abstract: An optical writing device includes: a light source substrate in which a plurality of light sources and a driving circuit for driving the plurality of light sources are mounted on the same substrate surface; and an optical element that images outgoing light of the light sources on a photoreceptor, wherein the plurality of light sources are two-dimensionally disposed in plan view from an optical axis direction of the optical element, and the light sources having distances different from each other in the optical axis direction to the photoreceptor are included.
    Type: Application
    Filed: March 11, 2019
    Publication date: October 10, 2019
    Inventors: Takahiro MATSUO, Atsushi NAGAOKA, Masahiko TAKAHASHI
  • Patent number: 10411235
    Abstract: A wagon (90b) includes a plurality of horizontal support bars (91f). A separator roll (12b) is stocked while the horizontal support bar is inserted into a core of the separator roll (12b) around which core a separator is rolled. This can prevent deformation and roll misalignment of the stocked separator roll.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: September 10, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Satoshi Yoneyama, Takahiro Matsuo, Daizaburo Yashiki
  • Publication number: 20190252663
    Abstract: A nonaqueous electrolyte secondary battery is provided in which a deterioration in charging capacity after high-rate discharge is inhibited. The nonaqueous electrolyte secondary battery includes (i) a nonaqueous electrolyte secondary battery separator including a polyolefin porous film which has a phase difference of not more than 80 nm with respect to light having a wavelength of 590 nm in a state where the polyolefin porous film is impregnated with ethanol and a porosity of 30% to 60% and (ii) a nonaqueous electrolyte containing a predetermined additive in an amount of not less than 0.5 ppm and not more than 300 ppm.
    Type: Application
    Filed: February 8, 2019
    Publication date: August 15, 2019
    Inventors: Eiko KASHIWAZAKI, Takahiro MATSUO
  • Patent number: 10367182
    Abstract: A laminated body includes: a porous base material containing a polyolefin-based resin as a main component, the porous base material having a predetermined phase difference and porosity; and a porous layer disposed on at least one surface of the porous base material, the porous layer containing a polyvinylidene fluoride-based resin, the polyvinylidene fluoride-based resin containing crystal form ? in an amount of not less than 34 mol % with respect to 100 mol % of a total amount of the crystal form ? and crystal form ? contained in the polyvinylidene fluoride-based resin.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: July 30, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Toshihiko Ogata, Takahiro Matsuo, Chikara Murakami
  • Patent number: 10345730
    Abstract: A light emitting device configured to cause a series circuit in which an OLED is connected to a thin film transistor to emit light by applying a predetermined voltage to the thin film transistor includes: a forward direction voltage estimating unit configured to estimate a forward direction voltage in a case where the OLED is caused to emit light at a set light quantity; a driving current amount estimating unit configured to estimate a driving current amount required for causing the OLED to emit light at the set light quantity; a source-drain voltage calculating unit configured to calculate a source-drain voltage applied to the thin film transistor from the predetermined voltage and the forward direction voltage; and a gate-source voltage determining unit configured to determine a gate-source voltage of the thin film transistor corresponding to the source-drain voltage in a case where the driving current amount is a drain current.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: July 9, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: So Yano, Masayuki Iijima, Takahiro Matsuo, Takaki Uemura, Akira Taniyama
  • Publication number: 20190146372
    Abstract: An optical writing device includes: a light emitting member on which a plurality of light emitting elements are arranged in a row; and a holding member on which a plurality of projections are arranged at intervals. In the optical writing device, a rear surface of the light emitting member opposite to a light emitting surface of the light emitting member contacts tops of the projections, and the light emitting member is fixed to the holding member via adhesives disposed on two opposite sides of each of the projections in a short direction of the holding member on the holding member so as to be separated from the projection.
    Type: Application
    Filed: November 5, 2018
    Publication date: May 16, 2019
    Applicant: Konica Minolta, Inc.
    Inventors: Takahiro Matsuo, Atsushi Nagaoka, Masahiko Takahashi
  • Patent number: 10114310
    Abstract: An optical writing device driving a light-emitting element array, modulating light according to a screening pattern that expresses a dithered image, and performing optical writing by focusing light emitted from the light-emitting element array through a lens array onto a photoreceptor. The optical writing device includes an acquisition unit that acquires a write start position for writing to the photoreceptor in a main scanning direction and a control unit that performs a control when the write start position corresponds to an i-th light-emitting element from a reference position that corresponds to a first light-emitting element in the main scanning direction, i being a positive integer greater than 1, wherein the control unit supplies pixel values to the i-th light-emitting element onwards, the pixel values being assigned from pixels of the screening pattern from an i-th pixel onwards, from a leading pixel of the screening pattern in the main scanning direction.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: October 30, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takahiro Matsuo, So Yano, Masayuki Iijima, Takaki Uemura, Akira Taniyama
  • Publication number: 20180254457
    Abstract: Provided is a nonaqueous electrolyte secondary battery separator that is excellent in rate characteristic maintenance ratio of a nonaqueous electrolyte secondary battery after a cycle of charge and discharge of the nonaqueous electrolyte secondary battery. A nonaqueous electrolyte secondary battery separator including: a polyolefin porous film, the nonaqueous electrolyte secondary battery separator having a photoelastic coefficient of not less than 3.0×10?11 m2/N and not more than 20×10?11 m2/N with respect to light having a wavelength of 590 nm.
    Type: Application
    Filed: March 2, 2018
    Publication date: September 6, 2018
    Inventor: Takahiro MATSUO
  • Patent number: 10031437
    Abstract: A light-emitting device including a light-emitting element and causing the light emitting element to emit different light amounts. The light-emitting device includes: a measurement unit, a predetermined value storage unit, and a driving signal calculation unit. The measurement unit measures a surrounding temperature of the light-emitting element. The predetermined value storage unit stores a predetermined value of a driving signal for causing the light-emitting element to emit light. The driving signal calculation unit executes calculation of a value of the driving signal for causing the light-emitting element to emit a desired light amount by applying a correction factor in accordance with the measured surrounding temperature and the desired light amount to the predetermined value of the driving signal.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: July 24, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takaki Uemura, Yasushi Nagasaka, So Yano, Masayuki Iijima, Takahiro Matsuo
  • Patent number: 9983500
    Abstract: An optical writing device performing optical writing with a light-emitting element, performing light amount switching, and including: a unit estimating a first value corresponding to a current amount for causing the element to emit a first light amount immediately after the switching; a unit supplying to the element, from immediately after the switching, a current amount corresponding to a first digital value acquired by quantizing the first value; a unit estimating a time amount through which a current amount for keeping the element emitting the first light amount increases from the current amount for causing the element to emit the first light amount immediately after the switching to a current amount corresponding to a second digital value greater than the first digital value by one step; and a unit supplying to the element, when the time amount elapses after the switching, the current amount corresponding to the second digital value.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: May 29, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: So Yano, Yasushi Nagasaka, Masayuki Iijima, Takahiro Matsuo, Takaki Uemura, Akira Taniyama
  • Patent number: 9871311
    Abstract: A contact connection structure includes: a first contact portion including an indent portion spherically protruding, the first contact portion including a plating layer formed on a surface of the first contact portion; and a second contact portion including a plating layer formed on a surface of the second contact portion. The indent portion of the first contact portion is slidable on a contact surface of the second contact portion. The indent portion of the first contact portion at a terminal insertion completed position is in contact with the second contact portion. The contact surface of the second contact portion includes an oxide-film shaving portion having an annular arc portion curved along a circumference portion of the indent portion.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: January 16, 2018
    Assignee: YAZAKI CORPORATION
    Inventors: Masayuki Fukui, Yoshitaka Ito, Takaya Kondou, Takahiro Matsuo, Kenzo Tanaka, Takahiro Yudate, Masanori Onuma
  • Publication number: 20170365831
    Abstract: A laminated body includes: a porous base material containing a polyolefin-based resin as a main component, the porous base material having a predetermined phase difference and porosity; and a porous layer disposed on at least one surface of the porous base material, the porous layer containing a polyvinylidene fluoride-based resin, the polyvinylidene fluoride-based resin containing crystal form ? in an amount of not less than 34 mol % with respect to 100 mol % of a total amount of the crystal form ? and crystal form ? contained in the polyvinylidene fluoride-based resin.
    Type: Application
    Filed: June 20, 2017
    Publication date: December 21, 2017
    Inventors: Toshihiko OGATA, Takahiro MATSUO, Chikara MURAKAMI
  • Patent number: 9829824
    Abstract: An optical writing device including: a current-driven light-emitting element; a thin film transistor configured to supply the light-emitting element with a drive current based on a luminance signal to put the light-emitting element in an on state; and a controller configured to, for each line of an image page, correct a first value of the luminance signal to yield a second value of the luminance signal, and to supply the thin film transistor with the luminance signal at the second value. The second value compensates for a light amount fluctuation of the light-emitting element that is dependent upon an emission/non-emission history, from an initial line of the image page to the line, of a first continuous period where the light-emitting element is kept in the on state and a second continuous period where the light-emitting period is kept in an off state.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: November 28, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takaki Uemura, So Yano, Masayuki Iijima, Takahiro Matsuo, Akira Taniyama