Patents by Inventor Takayuki Okamoto

Takayuki Okamoto 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: 9902051
    Abstract: Provided is a motor-driven screwdriver configured such that the upper limit value of transmittable rotational driving force differs between forward and backward rotation. The motor-driven screwdriver has a bit holder and a rotational driving force transmission device for transmitting rotational driving force to the bit holder. The rotational driving force transmission device has a driving member, a driven member having through-holes, power transmission members held in the through-holes, respectively, and an urging member urging the power transmission members inward. Each through-hole is provided such that a through-hole center axis passing through a center between a forward rotation guide surface and backward rotation guide surface of the through-hole does not intersect a rotation center axis, whereby the force with which the power transmission member is pushed radially outward is made to differ between forward and backward rotation.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: February 27, 2018
    Assignee: NITTO KOHKI CO., LTD.
    Inventors: Hirokazu Hita, Takayuki Okamoto, Keita Moriyama
  • Patent number: 9896298
    Abstract: A sheet is cut between a first conveying unit and a second conveying unit in a state in which the first and second conveying units halt and in which an upstream conveying unit conveys the sheet at a first speed; after the sheet is cut, the first conveying unit conveys the sheet at a second speed higher than the first speed to reduce a slack formed during the halting; after the sheet is cut, the second conveying unit conveys the downstream-side sheet at a third speed higher than the first speed; if the third conveying unit is nipping the sheet during cutting, the third conveying unit conveys the sheet at the third speed; and if the third conveying unit is not nipping the sheet, the third conveying unit conveys the sheet at the third speed or a fourth speed after the detecting unit detects the sheet.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: February 20, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahito Yoshida, Tetsuhiro Nitta, Kota Uchida, Takayuki Okamoto
  • Publication number: 20170301887
    Abstract: An organic light emitting diode includes an anodic conductive layer, an organic EL layer, and a cathodic conductive layer formed from Ag or an alloy of Ag, or the like, sequentially laminated on a substrate, such that a two-dimensional lattice structure is provided on a surface of the cathodic conductive layer on an organic EL layer side, an extraction wavelength and a distance between centers of concave portions or convex portions in the two-dimensional lattice structure are within a region surrounded by specific coordinates in a graph illustrating a relationship between the light extraction wavelength and the distance, and the depth of the concave portions or a height of the convex portions is 12 nm to 180 nm.
    Type: Application
    Filed: June 28, 2017
    Publication date: October 19, 2017
    Inventors: Kei Shinotsuka, Takayuki Okamoto
  • Patent number: 9728751
    Abstract: An organic light emitting diode and a method for manufacturing the same. The organic light emitting diode includes an anodic conductive layer, an organic EL layer, and a cathodic conductive layer formed from Ag or an alloy of Ag, or the like, sequentially laminated on a substrate, such that a two-dimensional lattice structure is provided on a surface of the cathodic conductive layer on an organic EL layer side, an extraction wavelength and a distance between centers of concave portions or convex portions in the two-dimensional lattice structure are within a region surrounded by specific coordinates in a graph illustrating a relationship between the light extraction wavelength and the distance, and the depth of the concave portions or a height of the convex portions is 12 nm to 180 nm.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: August 8, 2017
    Assignee: OJI Holdings Corporation
    Inventors: Kei Shinotsuka, Takayuki Okamoto
  • Publication number: 20170141709
    Abstract: A compressor driving device includes: a controller (23) that PWM drives a compressor; an inverter circuit unit (4) that supplies power to an electric motor included in the compressor; a drive circuit (5) that drives the inverter circuit unit (4) according to a control signal; a voltage detector (9) that detects a voltage that is output to the electric motor; and a current detector (10) that detects a current that is output to the electric motor. When a product of a detection value of the voltage detector (9) and a detection value of the current detector (10) is greater than a predetermined comparison value, a duty ratio of the control signal is reduced to cause the input power supplied to the electric motor by the inverter circuit unit (4) to have a predetermined input power level or less.
    Type: Application
    Filed: June 19, 2015
    Publication date: May 18, 2017
    Inventors: Mitsuhiro FUKUDA, Masaki SUMI, Hiroaki KASE, Shigetomi TOKUNAGA, Masamitsu TAURA, Takayuki OKAMOTO
  • Publication number: 20170097409
    Abstract: There is provided a radar device. A Fourier transform unit decomposes each of respective beat signals into a plurality of frequency components. A bearing computing unit specifies arrival angles of reflected-wave signals based on peak frequency components included in the plurality of frequency components, and calculates the signal intensities of arrival angle components of the reflected waves with respect to a plurality of neighborhood frequency components of the peak frequency components when the plurality of arrival angles of the reflected-wave signals are specified. A calculating unit selects one frequency component having the highest signal intensity from among the plurality of neighborhood frequency components, with respect to each of the arrival angles specified at a plurality of frequencies, and computes a distance between the radar device and a target on the basis of the one frequency component selected with respect to each of the arrival angles.
    Type: Application
    Filed: October 4, 2016
    Publication date: April 6, 2017
    Applicant: FUJITSU TEN LIMITED
    Inventor: Takayuki OKAMOTO
  • Publication number: 20170038998
    Abstract: A computing device includes a plurality of registers that store therein information that is used by a process to execute processing. When a process which is executed is switched from a first process to a second process and when the second process does not plan to use a second register in the plurality of registers, the computing device saves information stored in a first register that is being used by the first process into the second register. when the second process plans to use the second register, the computing device saves information stored in the first register into a memory.
    Type: Application
    Filed: July 25, 2016
    Publication date: February 9, 2017
    Applicant: FUJITSU LIMITED
    Inventor: Takayuki OKAMOTO
  • Publication number: 20170018740
    Abstract: An organic light emitting diode substrate configured so that the light extraction efficiency of a single color organic light emitting diode element made from one type of light emitting material is high, so that there is no risk of an extraction wavelength deviating from a target light emission wavelength due to slight variations in a fine uneven structure, and to enable extraction of a narrow bandwidth of light, from visible light, that has any central wavelength within the near infrared band and that has a degree of broadness. Also provided are an organic light emitting diode, a manufacturing method for the organic light emitting diode substrate, a manufacturing method for the organic light emitting diode, an image display device, and an illumination device.
    Type: Application
    Filed: September 30, 2016
    Publication date: January 19, 2017
    Inventors: Kei SHINOTSUKA, Takayuki OKAMOTO, Etsuko KAWAMUKAI
  • Patent number: 9508956
    Abstract: An organic light emitting diode, which is a top emission-type, is configured so that at least the following are laminated on the substrate: a reflective layer including a metal material; an anode conductive layer including a transparent conductive material; an organic EL layer having a light emitting layer which contains an organic light emitting material; and a cathode conductive layer in which a semi-transmissive metal layer and a transparent conductive layer including a transparent conductive material are laminated. On the surface of the semi-transmissive metal layer that is in contact with the transparent conducive layer side, a two-dimensional lattice structure is formed in which a plurality of protrusions are arranged periodically and two-dimensionally.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: November 29, 2016
    Assignee: OJI HOLDINGS CORPORATION
    Inventors: Kei Shinotsuka, Takayuki Okamoto, Etsuko Kawamukai
  • Patent number: 9489295
    Abstract: An information processing apparatus includes a free page storage unit and a page allocating unit. The free page storage unit divides a memory region in a memory into pages of a plurality of different page sizes and manages the divided pages, and stores management information about an initialization state corresponding to an unused memory region in the memory. The page allocating unit selects a free page of a page size according to a requested region size or a requested page size from the free page storage unit when an allocation of the unused memory region is requested, and performs an initializing process on a memory region on which the initializing process has not been performed in a memory region corresponding to the free page using management information about the selected free page.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: November 8, 2016
    Assignee: FUJITSU LIMITED
    Inventor: Takayuki Okamoto
  • Publication number: 20160246051
    Abstract: The objective of the present invention is to provide a lens cover for a projector that prevents the entry of projection light into the user's field of view. This lens cover for a projector has: a first surface that faces a projection lens and into which projection light from the projection lens is irradiated; a second surface that emits the projection light that was irradiated into the first surface; and a refracting part that is provided on the first surface or the second surface or on both surfaces; that is made up of a plurality of recessed parts, and that refracts the projection light in one direction. The lens cover is formed from a material having transparency.
    Type: Application
    Filed: November 5, 2013
    Publication date: August 25, 2016
    Inventors: Takayuki Okamoto, Yoshinobu Moriya, Yasuhiro Kitano
  • Publication number: 20160149149
    Abstract: Provided is an organic thin-film solar cell, including: a substrate, an anode, an organic thin-film layer that includes an organic semiconductor layer, and a cathode. The anode, the organic thin-film layer that includes the organic semiconductor layer, and the cathode are layered in order on top of the substrate. A recess and protrusion-shaped microstructure that includes a plurality of recesses or protrusions arranged two-dimensionally at random is formed in an interface between the organic thin-film layer and the cathode.
    Type: Application
    Filed: June 27, 2014
    Publication date: May 26, 2016
    Inventors: Kei Shinotsuka, Takayuki Okamoto
  • Publication number: 20160093832
    Abstract: An organic light emitting diode and a method for manufacturing the same. The organic light emitting diode includes an anodic conductive layer, an organic EL layer, and a cathodic conductive layer formed from Ag or an alloy of Ag, or the like, sequentially laminated on a substrate, such that a two-dimensional lattice structure is provided on a surface of the cathodic conductive layer on an organic EL layer side, an extraction wavelength and a distance between centers of concave portions or convex portions in the two-dimensional lattice structure are within a region surrounded by specific coordinates in a graph illustrating a relationship between the light extraction wavelength and the distance, and the depth of the concave portions or a height of the convex portions is 12 nm to 180 nm.
    Type: Application
    Filed: December 10, 2015
    Publication date: March 31, 2016
    Inventors: Kei Shinotsuka, Takayuki Okamoto
  • Patent number: 9276238
    Abstract: An organic light-emitting diode manufactured from an organic light-emitting diode substrate in which a concave-convex structure is provided in at least a part of the surface, in which the concave-convex structure is capable of obtaining an atomic force microscope (AFM) image in which a plurality of dots is dispersed when observed by an AFM. A histogram is created by measuring a diameter (nm) of each of the plurality of dots present in a randomly selected region having an area of 25 ?m2 on the atomic force microscope image, resulting in a plurality of peaks including one main peak and one or more sub-peaks, and the chromaticity of light emitted from the organic light-emitting diode is in a range of (x, y)=(0.28 to 0.50, 0.29 to 0.45) in a CIE standard colorimetric system.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: March 1, 2016
    Assignee: OJI HOLDINGS CORPORATION
    Inventors: Kei Shinotsuka, Takayuki Okamoto, Etsuko Kawamukai, Norio Yamamura
  • Publication number: 20160046459
    Abstract: A sheet is cut between a first conveying unit and a second conveying unit in a state in which the first and second conveying units halt and in which an upstream conveying unit conveys the sheet at a first speed; after the sheet is cut, the first conveying unit conveys the sheet at a second speed higher than the first speed to reduce a slack formed during the halting; after the sheet is cut, the second conveying unit conveys the downstream-side sheet at a third speed higher than the first speed; if the third conveying unit is nipping the sheet during cutting, the third conveying unit conveys the sheet at the third speed; and if the third conveying unit is not nipping the sheet, the third conveying unit conveys the sheet at the third speed or a fourth speed after the detecting unit detects the sheet.
    Type: Application
    Filed: October 29, 2015
    Publication date: February 18, 2016
    Inventors: Masahito Yoshida, Tetsuhiro Nitta, Kota Uchida, Takayuki Okamoto
  • Patent number: 9246122
    Abstract: An organic light emitting diode and a method for manufacturing the same. The organic light emitting diode includes an anodic conductive layer, an organic EL layer, and a cathodic conductive layer formed from Ag or an alloy of Ag, or the like, sequentially laminated on a substrate, such that a two-dimensional lattice structure is provided on a surface of the cathodic conductive layer on an organic EL layer side, an extraction wavelength and a distance between centers of concave portions or convex portions in the two-dimensional lattice structure are within a region surrounded by specific coordinates in a graph illustrating a relationship between the light extraction wavelength and the distance, and the depth of the concave portions or a height of the convex portions is 12 nm to 180 nm.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: January 26, 2016
    Assignee: OJI HOLDINGS CORPORATION
    Inventors: Kei Shinotsuka, Takayuki Okamoto
  • Patent number: 9216597
    Abstract: At least one of processing units is capable of being pulled out of a main body of an apparatus during the occurrence of a sheet conveyance jam. A first cutter and a second cutter are arranged in the vicinity of the processing unit. The first cutter is configured to cut the sheet on an upstream of the processing unit. The second cutter is configured to cut the sheet on a downstream thereof. When the processing unit is pulled, the sheet is cut on the upstream and downstream of the processing unit.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: December 22, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kanto Kurasawa, Yoshiaki Suzuki, Toshiaki Tokisawa, Masahito Yoshida, Kota Uchida, Takayuki Okamoto
  • Publication number: 20150357763
    Abstract: The object of the present invention is to provide a terminal panel whose surface is unlikely to be scratched and which makes scuff marks inconspicuous. A terminal panel of the present invention includes: at least, one terminal into which a connector is inserted from the outside; and, a metal plate with the terminal attached thereto, having a plurality of recesses (7) formed on its surface.
    Type: Application
    Filed: January 21, 2013
    Publication date: December 10, 2015
    Inventors: Takayuki OKAMOTO, Yoshinobu MORIYA, Susumu OGAWA
  • Patent number: 9105878
    Abstract: A method of manufacturing an organic light-emitting diode including preparing, by a dry etching method using a particle single layer film as an etching mask, a substrate provided with an uneven structure in which a plurality of unevenness is arranged in two dimensions on the surface of the substrate, and stacking, on the uneven structure, at least an anode conductive layer, an EL layer including a light-emitting layer containing an organic light-emitting material, and a cathode conductive layer containing a metal layer, such that the uneven structure is reproduced on the surface of the metal layer on the side of the EL layer, wherein the particle single layer film is formed using a mixture of a plurality of particles having different particle sizes, and an uneven structure is provided which satisfies particular requirements.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: August 11, 2015
    Assignee: Oji Holdings Corporation
    Inventors: Kei Shinotsuka, Takayuki Okamoto, Etsuko Kawamukai, Norio Yamamura
  • Patent number: D738949
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: September 15, 2015
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventors: Takayuki Okamoto, Naoki Kato, Tetsuya Nagata