Patents by Inventor Hiroyuki Furukawa

Hiroyuki Furukawa 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: 10222534
    Abstract: A light guide plate (30) is configured to allow light output from a display element (10) to be propagated therein and to allow at least a part of the light propagated therein to be reflected by a plurality of reflective structures (34). The plurality of reflective structures each include a reflective surface (36) inclining with respect to a light output surface (S30). The guide plate includes a first transparent member (30A); a second transparent member (30B); and a third transparent member (38) provided between the first transparent member and the second transparent member. The plurality of reflective structures are provided at positions in contact with the third transparent member.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: March 5, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takeshi Masuda, Hiroyuki Furukawa, Yoji Noguchi
  • Publication number: 20180366061
    Abstract: An organic EL display device includes: a pixel circuit drive unit configured to drive pixel circuits while performing a property measuring process in which a property of circuit elements is measured; a parameter table configured to store parameter values derived from monitoring data obtained in the property measuring process; a compensation computation unit configured to correct externally provided image data based on the parameter values stored in the parameter table, so as to generate a digital video signal to be fed to the pixel circuits; a temperature sensor configured to sense temperature; and a monitoring control section configured to control an execution frequency of the property measuring process in accordance with the sensed temperature. The monitoring control section increases the execution frequency of the property measuring process with an increase in the sensed temperature.
    Type: Application
    Filed: December 13, 2016
    Publication date: December 20, 2018
    Inventors: HIROYUKI FURUKAWA, NORITAKA KISHI, KAZUYOSHI YOSHIYAMA, SHIGETSUGU YAMANAKA, NAOKO GOTO, TAMOTSU SAKAI, KATSUYA OTOI
  • Patent number: 10113443
    Abstract: The failure detection device includes an accumulated data storage unit 30, a unit space generating module 13, a signal space generating module 14 and a determining module 16, wherein the unit space generating module 13 and the signal space generating module 14 use values as they are for condition sensor values defined as sensor values that affect other sensor values and sensor values that are not affected by the condition sensor values, and use values nondimensionalized by the condition sensor values or values adjusted by the condition sensor values for the other sensor values affected by the condition sensor values, and the determining module 16 compares a distance between the unit space and the signal space and determines presence/absence of a possibility of a failure.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: October 30, 2018
    Assignee: IHI Corporation
    Inventors: Kouichi Masuda, Hiroyuki Furukawa, Moe Kinoshita
  • Patent number: 10082909
    Abstract: Provided is a holding manner determination device that accurately determines a manner of holding an information terminal. A matching processing unit (312) calculates a coincidence between distribution data of sensor values detected by a touch panel (10) and holding hand reference data (Ref1), and a holding hand determination unit (314) determines a holding hand on the basis of holding hand information of the holding hand reference data (Ref1) whose coincidence with detection data is equal to or greater than a threshold.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: September 25, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masafumi Ueno, Kazuyoshi Yoshiyama, Takeshi Masuda, Hiroyuki Furukawa
  • Publication number: 20180233081
    Abstract: In a data line drive/current measurement circuit, m measurement units are disposed in a plurality of semiconductor chips such that the m measurement units are distributed among the plurality of semiconductor chips. A display apparatus includes transistors such that one transistor is provided for two adjacent semiconductor chips. Inter-chip correction data indicating a variation among the semiconductor chips in terms of characteristics of elements in the measurement units is determined based on a result of a current measurement performed for the same transistor using measurement units disposed in different semiconductor chips. The inter-chip correction data is stored in a storage unit and is used in correcting an image signal. The inter-chip correction data may be determined based on a result of measuring a current flowing through a common cathode of organic EL elements for each semiconductor chip.
    Type: Application
    Filed: August 3, 2016
    Publication date: August 16, 2018
    Inventors: Noritaka KISHI, Hiroyuki FURUKAWA, Katsuya OTOI, Kazuyoshi YOSHIYAMA, Tamotsu SAKAI, Naoko GOTO, Noboru NOGUCHI
  • Patent number: 9964047
    Abstract: A gas turbine engine optimization control device estimates a specific fuel consumption using a given control parameter of a variable mechanism, determines a change between a specific fuel consumption estimation value by the control parameter of the variable mechanism in a previous operation period and a specific fuel consumption estimation value by the control parameter of the variable mechanism in this operation period, determines a new control parameter of the variable mechanism with which the specific fuel consumption estimation value approaches a minimum, adds the new control parameter of the variable mechanism to a preset control parameter initial value, and sets the addition value to be a control parameter command value of the variable mechanism in a next operation period.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: May 8, 2018
    Assignee: IHI Corporation
    Inventors: Hiroyuki Furukawa, Moe Kinoshita
  • Publication number: 20180082624
    Abstract: In an image display device having a frame rate converting (FRC) portion, it is possible to prevent image degradation of a combined image display portion such as an OSD and PinP attributed to the FRC process. The image display device includes: an FRC portion 10 for converting the number of frames of an input image signal by interpolating an image signal subjected to a motion compensation process between the frames of the input image signal; an OSD processing portion 14 for superposing an OSD signal on the input image signal, and a controlling portion 15. The FRC portion 10 has a motion vector detecting portion 11e for detecting a motion vector between the frames of the input image signal, an interpolation vector evaluating portion 11f for allocating interpolation vector between frames based on the motion vector information, and an interpolation frame generating portion 12d for generating an interpolation frame from the interpolation vector.
    Type: Application
    Filed: November 2, 2017
    Publication date: March 22, 2018
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Toshiharu HANAOKA, Kenichiroh YAMAMOTO, Hiroyuki FURUKAWA, Masafumi UENO, Yasuhiro YOSHIDA
  • Publication number: 20180061328
    Abstract: In a current measurement period of a pixel circuit (20), a measurement voltage is applied to a non-inverting input terminal of an operational amplifier (31), switches (35, 36) turn on, and a switch (37) turns off. Next, the switch (36) turns off, and a capacitor (32) is charged with charge of a current flowing through the pixel circuit (20). Next, the switch (35) turns off, the switch (37) turns on, a constant current flows through a current source (33), and a voltage of a second terminal (terminal connected to an output terminal of the operational amplifier (31)) of the capacitor (32) decreases. A voltage comparator (42) and a counter (43) measure the current flowing through the pixel circuit (20) by measuring time until a voltage of the second terminal of the capacitor reaches a voltage Vcomp. A video signal VS1 is corrected based on a current measurement result.
    Type: Application
    Filed: March 18, 2016
    Publication date: March 1, 2018
    Inventors: Noritaka KISHI, Hiroyuki FURUKAWA, Katsuya OTOI, Kazuyoshi YOSHIYAMA, Tamotsu SAKAI, Naoko GOTOH
  • Publication number: 20180033372
    Abstract: A current measurement circuit measures a current flowing through a drive transistor when a plurality of measurement voltages are written to a pixel circuit in a switching manner, and a current flowing through an organic EL element when another plurality of measurement voltages are written to the pixel circuit in a switching manner. A correction unit obtains a threshold voltage and a gain of the drive transistor and the organic EL element with respect to each pixel circuit based on a measured current, determines in which operation region the drive transistor operates between a saturation region and a triode region with respect to each pixel circuit based on the video signal, and corrects the video signal in accordance with the operation region of the drive transistor. Since the drive transistor operates both in the saturation region and the triode region, it is possible to reduce a power supply voltage and reduce power consumption of a display device.
    Type: Application
    Filed: February 3, 2016
    Publication date: February 1, 2018
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: NORITAKA KISHI, HIROYUKI FURUKAWA, KATSUYA OTOI, KAZUYOSHI YOSHIYAMA, TAMOTSU SAKAI, NAOKO GOTOH
  • Patent number: 9881535
    Abstract: In an image display device having a frame rate converting (FRC) portion, it is possible to prevent image degradation of a combined image display portion such as an OSD and PinP attributed to the FRC process. The image display device includes: an FRC portion 10 for converting the number of frames of an input image signal by interpolating an image signal subjected to a motion compensation process between the frames of the input image signal; an OSD processing portion 14 for superposing an OSD signal on the input image signal, and a controlling portion 15. The FRC portion 10 has a motion vector detecting portion 11e for detecting a motion vector between the frames of the input image signal, an interpolation vector evaluating portion 11f for allocating interpolation vector between frames based on the motion vector information, and an interpolation frame generating portion 12d for generating an interpolation frame from the interpolation vector.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: January 30, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Toshiharu Hanaoka, Kenichiroh Yamamoto, Hiroyuki Furukawa, Masafumi Ueno, Yasuhiro Yoshida
  • Patent number: 9863268
    Abstract: A dynamic system estimation device and method, whereby estimation for more performance parameters than there are sensors can be performed, the estimation taking temporal changes into account. The dynamic system estimation device includes: a prescribed number of sensors that detect prescribed observation values from a gas turbine engine; and a Kalman filter that uses a dynamic model of the gas turbine engine and estimates the state of the gas turbine engine, on the basis of the observation values detected by the sensors. The gas turbine engine includes an element having changes in temporal performance recorded by performance parameters. The Kalman filter enables more than the prescribed number of performance parameters to be estimated, as a result of introducing a first-order lag element in place of the element.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: January 9, 2018
    Assignee: IHI Corporation
    Inventors: Hiroyuki Furukawa, Daiki Kakiuchi, Mai Kimura
  • Publication number: 20170372656
    Abstract: The organic EL display device includes: a current monitoring section that measures a current flowing in a circuit element and outputs a digital measured value in accordance with the measured current; and an averaging section (36) that calculates an average value of a plurality of input values. The current monitoring section measures the current flowing in a circuit element in each pixel circuit a plurality of times in a fixed amount of time. For each pixel circuit, the averaging section (36) receives a plurality of measured values outputted from the current monitoring section in a fixed amount of time as a plurality of input values and outputs an average value of the plurality of digital measured values as a value for use in compensation computation to compensate for degradation of the circuit element.
    Type: Application
    Filed: October 2, 2015
    Publication date: December 28, 2017
    Inventors: HIROYUKI FURUKAWA, NORITAKA KISHI, KAZUYOSHI YOSHIYAMA, TAMOTSU SAKAI, NAOKO GOTO, NOBORU NOGUCHI
  • Publication number: 20170365205
    Abstract: A measurement circuit includes a plurality of measurement units, performs, at a same timing, a main measurement for measuring a current or a voltage with respect to a pixel circuit with supplying a measurement voltage to a part of the measurement units and a dummy measurement for measuring a current or a voltage with supplying a dummy signal to remaining measurement units, and performs a calculation on a result of the main measurement and a result of the dummy measurement. As the dummy signal, a signal with which a value to be measured is approximately zero is used. The measurement result of the current or the voltage is used for correcting a video signal. With this, a display device which can remove noise in measurement when measuring the current or the voltage with respect to the pixel circuit is provided.
    Type: Application
    Filed: January 27, 2016
    Publication date: December 21, 2017
    Inventors: NORITAKA KISHI, HIROYUKI FURUKAWA, KATSUYA OTOI, KAZUYOSHI YOSHIYAMA, TAMOTSU SAKAI, NAOKO GOTOH
  • Patent number: 9845386
    Abstract: The present invention provides the following multilayer heat-shrinkable styrene-based film having an appropriate surface shape, together with excellent lubricity and blocking resistance, and resistance to ink skipping and like problems during the printing process: a multilayer heat-shrinkable styrene-based film having: layers (A) each containing 0.8 to 2.5 parts by weight of high impact polystyrene resin and 0.02 to 0.15 parts by weight of organic fine particles having a mean particle diameter of 0.5 to 5 ?m per 100 parts by weight of a block copolymer of 75 to 90 wt % vinyl aromatic hydrocarbon and 10 to 25 wt % conjugated diene hydrocarbon; and a layer (B1) containing a block copolymer of 70 to 85 wt % vinyl aromatic hydrocarbon and 15 to 30 wt % conjugated diene hydrocarbon; or a layer (B2) containing a resin composition containing a copolymer of 98 to 40 wt % vinyl aromatic hydrocarbon and 2 to 60 wt % aliphatic unsaturated carboxylic acid ester.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: December 19, 2017
    Assignee: GUNZE LIMITED
    Inventors: Masaharu Maruo, Naoki Ohno, Tadayoshi Tanaka, Hiroyuki Furukawa
  • Publication number: 20170336552
    Abstract: A light guide plate (30) is configured to allow light output from a display element (10) to be propagated therein and to allow at least a part of the light propagated therein to be reflected by a plurality of reflective structures (34). The plurality of reflective structures each include a reflective surface (36) inclining with respect to a light output surface (S30). The guide plate includes a first transparent member (30A); a second transparent member (30B); and a third transparent member (38) provided between the first transparent member and the second transparent member. The plurality of reflective structures are provided at positions in contact with the third transparent member.
    Type: Application
    Filed: November 2, 2015
    Publication date: November 23, 2017
    Inventors: TAKESHI MASUDA, HIROYUKI FURUKAWA, YOJI NOGUCHI
  • Publication number: 20170298759
    Abstract: The failure detection device includes an accumulated data storage unit 30, a unit space generating module 13, a signal space generating module 14 and a determining module 16, wherein the unit space generating module 13 and the signal space generating module 14 use values as they are for condition sensor values defined as sensor values that affect other sensor values and sensor values that are not affected by the condition sensor values, and use values nondimensionalized by the condition sensor values or values adjusted by the condition sensor values for the other sensor values affected by the condition sensor values, and the determining module 16 compares a distance between the unit space and the signal space and determines presence/absence of a possibility of a failure.
    Type: Application
    Filed: October 7, 2016
    Publication date: October 19, 2017
    Applicant: IHI Corporation
    Inventors: Kouichi MASUDA, Hiroyuki Furukawa, Moe Kinoshita
  • Patent number: 9767742
    Abstract: There is provided an image display device, in which a pixel includes sub-pixels of four or more colors that include a color in addition to the three primary colors, and which can display a high-quality image in which false colors or artifacts are suppressed. The image display device includes a pixel area in which a plurality of pixels P are arranged in a matrix shape, and each of the pixels P includes m (m is an integer which is equal to or greater than 4) sub-pixels SP. When it is assumed that the colors of the m sub-pixels SP included in one pixel are C1, C2, . . . , and Cm, the m sub-pixels SP which are sequentially arrayed from an arbitrary position include all of the colors of C1, C2, . . . , and Cm in both the vertical direction and the horizontal direction in the pixel area.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: September 19, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shinji Nakagawa, Hidekazu Miyata, Hiroyuki Furukawa, Kazuyoshi Yoshiyama, Yasuhiro Yoshida, Toshihiro Yanagi, Taketoshi Nakano, Asahi Yamato, Ken Inada
  • Publication number: 20170255332
    Abstract: Provided is a holding manner determination device that accurately determines a manner of holding an information terminal. A matching processing unit (312) calculates a coincidence between distribution data of sensor values detected by a touch panel (10) and holding hand reference data (Ref1), and a holding hand determination unit (314) determines a holding hand on the basis of holding hand information of the holding hand reference data (Ref1) whose coincidence with detection data is equal to or greater than a threshold.
    Type: Application
    Filed: June 17, 2015
    Publication date: September 7, 2017
    Inventors: Masafumi UENO, Kazuyoshi YOSHIYAMA, Takeshi MASUDA, Hiroyuki FURUKAWA
  • Patent number: 9752512
    Abstract: An actuator control device detects a displacement of a piston in a first actuator, controls the first actuator by feedback control, measures both of forces generated in first and second actuators, corrects a target position command value for a piston in the second actuator in accordance with an amount of imbalance between the forces, and controls the second actuator in accordance with the difference between the corrected command value and a feedback value of a displacement position of the second piston.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: September 5, 2017
    Assignee: IHI Corporation
    Inventors: Hiroyuki Furukawa, Takafumi Imazu
  • Patent number: 9744608
    Abstract: A primary power supply charges a capacitor by turning on a switching element and, upon completion of charging, turns off the switching element. Then, an AC pulse voltage is applied to the gap between a wire electrode and a workpiece by alternately turning on and off a switching element present in a secondary power supply. After a dielectric breakdown occurs between the wire electrode and the workpiece, the switching element is turned on to connect the capacitor so that the capacitor supplies a pulse current for machining.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: August 29, 2017
    Assignee: FANUC CORPORATION
    Inventors: Hiroyuki Furukawa, Akiyoshi Kawahara