Patents by Inventor Takayuki Imai

Takayuki Imai 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: 10739260
    Abstract: This optical analyzing device is provided with a light source, a detector, a substrate having a metal film on at least one surface thereof, and an optical element for introducing a light beam from the light source to the substrate and delivering the light beam from the substrate toward the detector. A plurality of sample regions for holding samples are provided on the metal film; and a portion of the light beam from the light source is irradiated to any one of the sample regions, is reflected, at least once, by the surface of the substrate on the opposite side of the side on which the sample regions are provided, and is not irradiated to a sample region other than the aforementioned sample region in the path thereof until the portion of the light beam is delivered by the optical element.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: August 11, 2020
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Takayuki Obara, Muneo Maeshima, Kazumichi Imai, Yohei Hanazaki
  • Patent number: 10734815
    Abstract: Power coordination control systems (10a-10c) are provided with superimposed signal generation units (11a-11c), transmission units (12a-12c), receiving units (13a-13c) and connection relation estimation units (14a-14c). At the location of a utility consumer A (20), the superimposed signal generation unit (11a) generates a superimposed signal by superimposing a prescribed signal on a voltage supplied from a system (50). The transmission unit (12a) transmits the superimposed signal generated in the superimposed signal generation unit (11a) from the utility consumer A (20) to utility consumers B (30) and C (40). The receiving unit (13b) receives the superimposed signal at the location of the utility consumer B (30). The connection relation estimation units (14a-14c) estimate the connection relation between the utility consumer A (20) and the utility consumer B (30) on the basis of the receiving status of the superimposed signal and/or the received information received by the receiving units (13a-13c).
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: August 4, 2020
    Assignee: OMRON Corporation
    Inventors: Takayuki Eda, Kazuki Kasai, Hiroshi Imai, Hiromasa Takatsuka, Fumiji Aita
  • Patent number: 10734548
    Abstract: A free-standing substrate of a polycrystalline nitride of a group 13 element is composed of a plurality of monocrystalline particles having a particular crystal orientation in approximately a normal direction. The free-standing substrate has a top surface and a bottom surface. The polycrystalline nitride of the group 13 element is gallium nitride, aluminum nitride, indium nitride or a mixed crystal thereof and contains zinc at a concentration of 1×1017 atoms/cm3 or more and 1×1020 atoms/cm3 or less.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: August 4, 2020
    Assignee: NGK INSULATORS, LTD.
    Inventors: Katsuhiro Imai, Yoshitaka Kuraoka, Mikiya Ichimura, Takayuki Hirao
  • Publication number: 20200154368
    Abstract: A high-frequency signal processing apparatus and a wireless communication apparatus can achieve a decrease in power consumption. For example, when an indicated power level to a high-frequency power amplifier is equal to or greater than a second reference value, envelope tracking is performed by causing a source voltage control circuit to control a high-speed DCDC converter using a detection result of an envelope detecting circuit and causing a bias control circuit to indicate a fixed bias value. The source voltage control circuit and the bias control circuit indicate a source voltage and a bias value decreasing in proportion to a decrease in the indicated power level when the indicated power level is in a range of the second reference value to the first reference value, and indicate a fixed source voltage and a fixed bias value when the indicated power level is less than the first reference value.
    Type: Application
    Filed: January 16, 2020
    Publication date: May 14, 2020
    Inventors: Satoshi TANAKA, Kiichiro TAKENAKA, Takayuki TSUTSUI, Taizo YAMAWAKI, Shun IMAI
  • Patent number: 10626345
    Abstract: In a threaded joint for pipes constituted by a pin and a box, each having a contact surface comprising a threaded portion and an unthreaded metal contact portion, the contact surface of the pin has a solid corrosion protective, preferably transparent coating based on a UV-curable resin and the contact surface of the box has a solid lubricating coating having plastic or viscoplastic rheological behavior which is preferably formed by the hot melt technique from a composition comprising a thermoplastic polymer, a wax, a metal soap, a corrosion inhibitor, a water-insoluble liquid resin, and a solid lubricant.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: April 21, 2020
    Assignees: NIPPON STEEL CORPORATION, VALLOUREC MANNESMANN OIL & GAS FRANCE
    Inventors: Kunio Goto, Takayuki Kamimura, Masaru Takahashi, Keishi Matsumoto, Michihiko Iwamoto, Ryuichi Imai, Stephanie Rai
  • Patent number: 10570754
    Abstract: A steam turbine rotor blade for forming a turbine rotor cascade of a steam turbine includes a rotor blade main body having a blade portion, a blade base portion and a first coupling portion, which has first facing surfaces, provided on opposite end sides of the blade portion, and a second coupling portion provided in an intermediate portion of the blade portion and having second facing surfaces. The steam turbine rotor blade also includes a coating layer which is made of a Co-based alloy having a single composition on a surface of at least one of the first and second facing surfaces with a diffusion layer having a thickness of 10 ?m or less provided between the coating layer and the surface.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: February 25, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Soichiro Tabata, Yuki Enomoto, Naoto Tochitani, Shunji Imai, Takayuki Kurimura, Naotoshi Okaya, Yuta Okimori, Haruhiko Asaka
  • Patent number: 10548092
    Abstract: A high-frequency signal processing apparatus and a wireless communication apparatus can achieve a decrease in power consumption. For example, when an indicated power level to a high-frequency power amplifier is equal to or greater than a second reference value, envelope tracking is performed by causing a source voltage control circuit to control a high-speed DCDC converter using a detection result of an envelope detecting circuit and causing a bias control circuit to indicate a fixed bias value. The source voltage control circuit and the bias control circuit indicate a source voltage and a bias value decreasing in proportion to a decrease in the indicated power level when the indicated power level is in a range of the second reference value to the first reference value, and indicate a fixed source voltage and a fixed bias value when the indicated power level is less than the first reference value.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: January 28, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Satoshi Tanaka, Kiichiro Takenaka, Takayuki Tsutsui, Taizo Yamawaki, Shun Imai
  • Patent number: 10509268
    Abstract: According to an aspect, a display device includes: a first translucent substrate; a second translucent substrate facing the first translucent substrate; a liquid crystal layer including polymer dispersed liquid crystal sealed between the first translucent substrate and the second translucent substrate; at least one light emitter facing at least one of a side surface of the first translucent substrate or a side surface of the second translucent substrate; and a display controller that controls transmittance of light passing through the first translucent substrate and the second translucent substrate. A non-light-emitting period in which the at least one light emitter does not emit light is provided between a plurality of light-emitting periods in which the at least one light emitter emits light.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: December 17, 2019
    Assignee: Japan Display Inc.
    Inventors: Tae Kurokawa, Kentaro Okuyama, Takayuki Imai
  • Publication number: 20190242029
    Abstract: It is provided a layer of a nitride of a group 13 element having a first main face and second main face. The layer of the nitride of the group 13 element includes a first void-depleted layer provided on the side of the first main face, a second void-depleted layer provided on the side of the second main face, and the void-distributed layer provided between the first void-depleted layer and second void-depleted layer.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 8, 2019
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yoshinori ISODA, Suguru NOGUCHI, Tetsuya UCHIKAWA, Takayuki HIRAO, Takanao SHIMODAIRA, Katsuhiro IMAI
  • Publication number: 20190237015
    Abstract: According to one embodiment, a display device includes a display panel in which pixel units are arranged, and a controller configured to generate image signals by multiplying display data externally supplied to each line by a luminosity adjustment factor, to supply the generated image signals to the pixel units, to accumulate power consumption of each line, and to execute black insertion if the accumulated power consumption is determined to be greater than power consumption of one previous display frame by a predetermined value, wherein the luminosity adjustment factor is acquired by substituting the power consumption of one previous frame to a decreasing function, and a display pattern including a plurality of continuing black display lines is synchronized with supply of the image signals and is displayed moving the same direction of a screen scanning direction of the display panel during the black insertion.
    Type: Application
    Filed: April 5, 2019
    Publication date: August 1, 2019
    Applicant: JAPAN DISPLAY INC.
    Inventors: Takayuki IMAI, Norio Nakamura
  • Patent number: 10353315
    Abstract: An image forming apparatus includes an image forming device that forms an image on a recording material. The apparatus further includes an adjuster that sequentially executes adjustment operations corresponding to plural adjustment items which are selected in advance. The apparatus further includes a display that displays information indicating that a setting in which an adjustment result is to be reflected is newly generated when the setting is newly generated during execution of the adjustment operations.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: July 16, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Tomoya Imai, Nobuyuki Kuto, Takayuki Saito
  • Patent number: 10304382
    Abstract: According to one embodiment, a display device includes a display panel in which pixel units are arranged, and a controller configured to generate image signals by multiplying display data externally supplied to each line by a luminosity adjustment factor, to supply the generated image signals to the pixel units, to accumulate power consumption of each line, and to execute black insertion if the accumulated power consumption is determined to be greater than power consumption of one previous display frame by a predetermined value, wherein the luminosity adjustment factor is acquired by substituting the power consumption of one previous frame to a decreasing function, and a display pattern including a plurality of continuing black display lines is synchronized with supply of the image signals and is displayed moving the same direction of a screen scanning direction of the display panel during the black insertion.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: May 28, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventors: Takayuki Imai, Norio Nakamura
  • Patent number: 10296153
    Abstract: Provided is an electrostatic capacitance touch panel with high manufacturing yield that can significantly decrease occurrence of defective product due to short circuit as compared with related art even if there is short circuit between a dummy pattern and an electrode included in an insulated area with wide width recognized as distinct from the electrode. Several first electrodes 20, several second electrodes 30, and a dummy pattern 50 made from the same material as or a material with the same refractive index as the electrode provided in an insulated area 40 between the adjacent first electrode 20 and the second electrode 30 are provided over the same surface of an insulating substrate 10. The dummy pattern 50 is segmented in the long direction of the insulated area.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: May 21, 2019
    Assignee: SMK Corporation
    Inventors: Takayuki Nakase, Haruka Imai
  • Publication number: 20190150100
    Abstract: A high-frequency signal processing apparatus and a wireless communication apparatus can achieve a decrease in power consumption. For example, when an indicated power level to a high-frequency power amplifier is equal to or greater than a second reference value, envelope tracking is performed by causing a source voltage control circuit to control a high-speed DCDC converter using a detection result of an envelope detecting circuit and causing a bias control circuit to indicate a fixed bias value. The source voltage control circuit and the bias control circuit indicate a source voltage and a bias value decreasing in proportion to a decrease in the indicated power level when the indicated power level is in a range of the second reference value to the first reference value, and indicate a fixed source voltage and a fixed bias value when the indicated power level is less than the first reference value.
    Type: Application
    Filed: January 9, 2019
    Publication date: May 16, 2019
    Inventors: Satoshi TANAKA, Kiichiro TAKENAKA, Takayuki TSUTSUI, Taizo YAMAWAKI, Shun IMAI
  • Patent number: 10283085
    Abstract: According to one embodiment, a display device includes a plurality of light sources, a display panel illuminated by the light sources and a drive circuit which drives the light sources time-divisionally to emit light sequentially based on a first image signal for displaying an image in color. The drive circuit determines whether visibility of the image displayed in color deteriorates because of external light, extracts from the first image signal a brightness signal when determining that the visibility of the image deteriorates, generates a second image signal based on the brightness signal, and drives the display panel based on the second image signal when the second image signal is generated.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: May 7, 2019
    Assignee: Japan Display Inc.
    Inventor: Takayuki Imai
  • Publication number: 20180326518
    Abstract: A saw wire and various methods of use and manufacture are provided. The saw wire includes a metal wire containing one of tungsten and a tungsten alloy. A surface roughness Ra of the metal wire is at most 0.15 ?m. A diameter of the metal wire is at most 60 ?m.
    Type: Application
    Filed: May 9, 2018
    Publication date: November 15, 2018
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomohiro KANAZAWA, Masato WADA, Takayuki IMAI, Tetsuji SHIBATA, Kazushige SUGITA, Naoki KOHYAMA, Hiroshi GOUDA, Yoshitaka MIZUGUCHI
  • Publication number: 20180326519
    Abstract: A saw wire and various methods of use and manufacture are provided. The saw wire includes a metal wire containing at least one of tungsten and a tungsten alloy. A surface roughness Ra of the metal wire is at most 0.15 ?m. A tensile strength of the metal wire is at least 3500 MPa. A diameter of the metal wire is at most 60 ?m.
    Type: Application
    Filed: May 9, 2018
    Publication date: November 15, 2018
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomohiro KANAZAWA, Masato WADA, Takayuki IMAI, Tetsuji SHIBATA, Kazushige SUGITA, Naoki KOHYAMA, Hiroshi GOUDA, Yoshitaka MIZUGUCHI
  • Publication number: 20180292690
    Abstract: According to an aspect, a display device includes: a first translucent substrate; a second translucent substrate facing the first translucent substrate; a liquid crystal layer including polymer dispersed liquid crystal sealed between the first translucent substrate and the second translucent substrate; at least one light emitter facing at least one of a side surface of the first translucent substrate or a side surface of the second translucent substrate; and a display controller that controls transmittance of light passing through the first translucent substrate and the second translucent substrate. A non-light-emitting period in which the at least one light emitter does not emit light is provided between a plurality of light-emitting periods in which the at least one light emitter emits light.
    Type: Application
    Filed: April 3, 2018
    Publication date: October 11, 2018
    Applicant: Japan Display Inc.
    Inventors: Tae Kurokawa, Kentaro Okuyama, Takayuki Imai
  • Patent number: D850894
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: June 11, 2019
    Assignee: Sumitomo Forestry Co., Ltd.
    Inventors: Junichi Imai, Hiroki Nakashima, Takayuki Masuko
  • Patent number: D852029
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: June 25, 2019
    Assignee: Sumitomo Forestry Co., Ltd.
    Inventors: Junichi Imai, Hiroki Nakashima, Takayuki Masuko