Patents by Inventor Akira Hirai

Akira Hirai 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: 20150340977
    Abstract: The motor drive device includes: a three-phase inverter having switching elements and converting a direct current into an alternating current; a plurality of current detection circuits configured to detect a current that flows through a power line in each phase; a current abnormality detection unit configured to detect the presence/absence of an abnormality based on the detected currents; a failure diagnosis start unit configured to output a failure diagnosis start signal based on the abnormality detection results; an inverter switching command unit configured to output a command for performing a plurality of switching patterns in which switching of the switching elements is performed selectively so that a current flows between two selected phases; a current analysis unit configured to analyze the detected currents; and a failed part determination unit configured to determine a failed part based on the current analysis results and the switching patterns.
    Type: Application
    Filed: May 21, 2015
    Publication date: November 26, 2015
    Inventors: Masaya Tateda, Akira Hirai
  • Publication number: 20150293165
    Abstract: A motor drive device includes a power source unit rectifying AC voltage to DC voltage and to smooth the DC voltage by a capacitor, a motor drive amplification, a power source voltage measurement unit, an insulation resistance deterioration detection unit having a contact unit connecting one end of the capacitor to the ground and a current detection unit provided between the other end of the capacitor and a motor coil, and detecting a deterioration in an insulation resistance of the motor based on a detected signal obtained from a closed circuit formed by the contact unit, the capacitor, the motor coil, and the ground by using the current detection unit, and a failure detection unit detecting a failure in the insulation resistance deterioration detection unit based on the detected signal in the insulation resistance deterioration detection unit and a voltage value measured by the power source voltage measurement unit.
    Type: Application
    Filed: April 14, 2015
    Publication date: October 15, 2015
    Inventors: Masaya Tateda, Hiroyasu Sato, Akira Hirai
  • Patent number: 9141238
    Abstract: A flexible touch screen panel includes a polarizing film having an active region and a non-active region, the non-active region being along an outline of the active region, and the polarizing film having a polarizer, a phase difference compensating layer defining a first surface of the polarizing film, and a transparent adhesive between the phase difference compensating layer and the polarizer, the transparent adhesive being configured to support the polarizer, sensing patterns on the first surface of the polarizing film, the sensing patterns being in the active region, and sensing lines on the first surface of the polarizing film, the sensing lines being in the non active region and being coupled to the sensing patterns.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: September 22, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung-Ku Kang, Tae-Hyeog Jung, Hak-Sun Kim, Akira Hirai, Choon-Hyop Lee
  • Publication number: 20150255758
    Abstract: A method of bonding a display device is disclosed. In one aspect, the method comprises forming a seal portion between a substrate, on which an emission region is foamed, and an encapsulating part mounted facing the substrate, aligning positions of the substrate and the encapsulating part in a chamber, changing a vacuum state of the chamber to an atmospheric pressure state so as apply bonding pressure to the substrate and the encapsulating part, wherein the vacuum state and the atmospheric pressure state have different pressures, and applying energy to the seal portion so as to bond the substrate and the encapsulating part.
    Type: Application
    Filed: September 22, 2014
    Publication date: September 10, 2015
    Inventor: Akira Hirai
  • Publication number: 20150256116
    Abstract: A motor drive device includes: a converter; a power supply; a plurality of inverter units configured to convert DC to AC to drive a plurality of motors by upper arm switching elements connected between a capacitor and motor coils and lower arm switching elements connected between the capacitor and motor coils; a second switch configured to connect the capacitor to the earth; a current detector configured to measure current flowing between the capacitor and the earth; a voltage detector configured to measure the voltage across the capacitor; and, an insulation resistance detector configured to detect insulation resistance of the multiple motors based on the current and voltage measured in a condition that the switching element to which the motor coil to be measured is connected is turned on and the switching elements to which a motor coil other than the target for measurement is connected are turned off.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 10, 2015
    Inventors: Masaya Tateda, Hiroyasu Sato, Akira Hirai
  • Publication number: 20150234237
    Abstract: The present invention provides a liquid crystal display device that sufficiently reduces image sticking, by forming a polymer layer with stable alignment control appropriately. In a method for manufacturing the liquid crystal display device of the present invention, base film forming conditions are different between the step of forming a base film on a substrate including an active element and the step of forming a base film on a substrate different from the substrate including an active element.
    Type: Application
    Filed: September 9, 2013
    Publication date: August 20, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Akira Hirai, Hiroaki Asagi, Isamu Miyake
  • Publication number: 20150194630
    Abstract: A display device and method of manufacturing the same are disclosed. In one aspect, the display device includes a substrate, at least one wire formed over the substrate and configured to transfer a signal for displaying an image, and an encapsulating unit formed over the wire and comprising a base layer and a barrier layer. The barrier layer is interposed between the wire and the base layer and includes a lower surface having a shape that corresponds to the shape of the wire and an upper surface opposing the lower surface. The base layer has a lower surface having a shape that corresponds to the shape of the barrier layer.
    Type: Application
    Filed: October 8, 2014
    Publication date: July 9, 2015
    Inventor: Akira Hirai
  • Publication number: 20150194922
    Abstract: A motor drive device of the present invention includes: a rectification circuit configured to rectify an AC voltage; a power source unit configured to smooth a DC voltage by a capacitor; an inverter unit configured to drive a motor by converting a DC voltage into an AC voltage; a current detection unit configured to measure a current flowing through a resistor which is connected to a coil of the motor and the capacitor; a voltage detection unit configured to measure a value of a voltage across the capacitor; a second switch that grounds the capacitor; and an insulation resistance detection unit configured to detect an insulation resistance value of a motor by using two sets of a current value and a voltage value measured in two states where the second switch is turned off and turned on.
    Type: Application
    Filed: January 7, 2015
    Publication date: July 9, 2015
    Inventors: Hiroyasu SATO, Masaya TATEDA, Akira HIRAI
  • Patent number: 9069521
    Abstract: A foldable display device includes a flexible display panel and a cover window on an outside of the flexible display panel. The cover window includes a foldable region between plane regions that are on opposite sides of the cover window, and the plane regions have a first hardness and the foldable region has a second hardness that is smaller than the first hardness.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 30, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyu-Taek Lee, Hak-Sun Kim, Akira Hirai, Tae-Hyeog Jung
  • Publication number: 20150085161
    Abstract: An apparatus includes: an element that receives subject light from a subject to generate image data; a section that generates a recording image to be recorded on a recording medium from the image data when a first mode is set; a section that generates a second display image, which allows display of a live-view image, from the image data when a second mode is set, and that generates a first display image, which allows display of an image identical to the recording image, from the image data when the first mode is set; a section that sequentially displays the first display image or the second display image; a section that detects a specific state of the apparatus that obstructs recording of an imaging object onto the recording image; and a section that controls switching between the first mode and the second mode on the basis of the detection results.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 26, 2015
    Inventors: AKIRA HIRAI, AKIRA FUKUDA, TAKUYA HIGUCHI, SATOSHI TAKADA, TSUYOSHI HARATA
  • Patent number: 8943698
    Abstract: The kitchen knife with the sharpener includes: a cutout recess formed in an end of the handle; a locking space extending from the cutout recess; and a sharpener, including: a locking part removably received in the locking space; a sharpener body extending from the locking part; a whetting groove transversely formed in the sharpener body; plate-shaped whetstones inclinedly installed on opposing sidewalls of the whetting groove so that the whetstones form a V-shaped arrangement; and a rubber cushion placed below a rear surface of a whetstone.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: February 3, 2015
    Assignee: Forever Co., Ltd.
    Inventor: Akira Hirai
  • Patent number: 8934041
    Abstract: An apparatus includes: an element that receives subject light from a subject to generate image data; a section that generates a recording image to be recorded on a recording medium from the image data when a first mode is set; a section that generates a second display image, which allows display of a live-view image, from the image data when a second mode is set, and that generates a first display image, which allows display of an image identical to the recording image, from the image data when the first mode is set; a section that sequentially displays the first display image or the second display image; a section that detects a specific state of the apparatus that obstructs recording of an imaging object onto the recording image; and a section that controls switching between the first mode and the second mode on the basis of the detection results.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: January 13, 2015
    Assignee: Sony Corporation
    Inventors: Akira Hirai, Akira Fukuda, Takuya Higuchi, Satoshi Takada, Tsuyoshi Harata
  • Publication number: 20150002799
    Abstract: A liquid crystal display device (100) includes a first substrate (10) and a second substrate (20) opposing each other, and a liquid crystal layer (30) provided between the first substrate and the second substrate. At least one of the first substrate and the second substrate includes a horizontal alignment film (12, 22) provided on a side closer to the liquid crystal layer. The liquid crystal display device further includes an alignment sustaining layer (40a, 40b) provided between the horizontal alignment film and the liquid crystal layer, the alignment sustaining layer containing a polymerization product of a photopolymerizable compound. The photopolymerizable compound contains an acrylate group or a methacrylate group. The polymerization product in the alignment sustaining layer contains an acrylate group or a methacrylate group as a residue. The horizontal alignment film contains an acrylate group or a methacrylate group.
    Type: Application
    Filed: January 28, 2013
    Publication date: January 1, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Isamu Miyake, Koichi Miyachi, Hiroaki Asagi, Akira Hirai
  • Patent number: 8887425
    Abstract: A display device has a cover window that is light, has good resistance against external impact, and is capable of being processed with various shapes. A display device according to the present invention includes: a display panel including a display area and a non-display area; and a cover window positioned at the front side of the display panel and including a transparent area corresponding to the display area and a non-transparent area corresponding to the non-display area, wherein the cover window includes a cover window main body formed with the transparent area and the non-transparent area, and a transparent protection layer formed at the front surface of the cover window main body. The transparent protection layer extends to the rear surface corresponding to at least a portion of the non-transparent area of the cover window main body.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: November 18, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Akira Hirai, Dong-Ho Lee, Seon-Chool Kim, Sang-Wook Lee, Sung-Ki Jung
  • Patent number: 8887091
    Abstract: An information processing apparatus includes a determination unit configured to determine whether incorrect updating processing in which information stored in a memory of the information processing apparatus is incorrectly updated has been executed in a first application program for receiving an instruction issued by a user and for controlling execution of processing corresponding to the instruction; a forcible termination unit configured to, when the determination unit determines that the incorrect updating processing has been executed, forcibly terminate the first application program; and a restart control unit configured to, when the determination unit determines that the incorrect updating processing has been executed, after the forcible termination unit terminates the first application program, notify the user of the occurrence of the incorrect updating.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: November 11, 2014
    Assignee: Sony Corporation
    Inventors: Hidenori Yamaji, Akira Hirai, Takuya Nishibayashi
  • Publication number: 20140295157
    Abstract: A window for a display device includes a first resin layer including silsesquioxane, and a second resin layer disposed on one side of the first resin layer and including a polymer having a coefficient of thermal expansion of about ±20 ppm/° C. relative to the coefficient of thermal expansion of the silsesquioxane, and a display device including the same.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 2, 2014
    Inventors: Akira HIRAI, Kwan-Young HAN, Hyoung-Suk ROH, Mikiya ITAKURA
  • Publication number: 20140285953
    Abstract: A cover window for a display device includes a display area and a non-display area, the cover window including a frame member disposed corresponding to the non-display area, and a protective member disposed on the frame member corresponding to the display area and the non-display area.
    Type: Application
    Filed: October 17, 2013
    Publication date: September 25, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Akira HIRAI, Kwan-Young HAN, Hyoung-Suk ROH
  • Patent number: 8789394
    Abstract: Provided is a glove which has good adhesiveness to a rubber or resin coating material and excellent durability and further fits a hand well enabling good work efficiency. The glove is knitted from a covered yarn obtained by winding a sheath yarn around a core yarn and at least a part of the surface thereof is coated with a rubber or resin coating material, wherein the sheath yarn is a crimped yarn made of a high strength fiber having, as a property of a raw yarn, a tensile strength of 1.75 N/tex or more as measured according to JIS L 1013 8.5, and the crimped yarn simultaneously satisfies the following (1) to (3): (1) a degree of bulkiness of 40 cm3/g or more as measured according to JIS L 1013 8.16 A method after hot water treatment at 90° C. for 20 minutes, (2) a bulk compression modulus of 80% or more as measured according to the same method, and (3) a shrinkage/elongation ratio of 20% or more as measured according to JIS L 1013 8.11 A method.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: July 29, 2014
    Assignee: Du Pont-Toray Company, Ltd.
    Inventors: Kaoru Tatsumi, Hideo Nakamura, Shuu Izumi, Akira Hirai
  • Publication number: 20140132803
    Abstract: An apparatus includes: an element that receives subject light from a subject to generate image data; a section that generates a recording image to be recorded on a recording medium from the image data when a first mode is set; a section that generates a second display image, which allows display of a live-view image, from the image data when a second mode is set, and that generates a first display image, which allows display of an image identical to the recording image, from the image data when the first mode is set; a section that sequentially displays the first display image or the second display image; a section that detects a specific state of the apparatus that obstructs recording of an imaging object onto the recording image; and a section that controls switching between the first mode and the second mode on the basis of the detection results.
    Type: Application
    Filed: January 23, 2014
    Publication date: May 15, 2014
    Applicant: Sony Corporation
    Inventors: AKIRA HIRAI, AKIRA FUKUDA, TAKUYA HIGUCHI, SATOSHI TAKADA, TSUYOSHI HARATA
  • Patent number: D737649
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: September 1, 2015
    Assignee: Forever Co., Ltd.
    Inventor: Akira Hirai