Patents by Inventor Hiroshi Yoneda

Hiroshi Yoneda 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: 7042431
    Abstract: In a vertical retrace interval, a pre-charge potential or a signal potential is applied to each polarity for AC driving liquid crystal at least once each, so as to maintain fluctuations in pixel potential between the positive polarity side and the negative polarity side uniform, and minimum required potentials are supplied to the data signal line, thereby suppressing decrease in image quality without significantly increasing power consumption.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: May 9, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hajime Washio, Nobuhiro Kuwabara, Shigeto Yoshida, Yuji Asoh, Hiroshi Yoneda
  • Publication number: 20060007217
    Abstract: An erasing device for a liquid crystal display image of the present invention is furnished with an auxiliary power source for continuously supplying power source to a liquid crystal display panel for a certain period after the main power source of the main body of the liquid crystal display device is turned OFF. Upon input of a power source OFF signal directing to turn OFF the main power source, a driving signal generating circuit and a driver controller light up the liquid crystal display panel entirely on a saturation voltage of the liquid crystal and subsequently shut off the same entirely using the power supply from the auxiliary power source.
    Type: Application
    Filed: June 9, 2005
    Publication date: January 12, 2006
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Makoto Kanbe, Yasuhisa Itoh, Shigeto Yoshida, Hiroshi Yoneda
  • Patent number: 6940479
    Abstract: An erasing device for a liquid crystal display image of the present invention is furnished with an auxiliary power source for continuously supplying power source to a liquid crystal display panel for a certain period after the main power source of the main body of the liquid crystal display device is turned OFF. Upon input of a power source OFF signal directing to turn OFF the main power source, a driving signal generating circuit and a driver controller light up the liquid crystal display panel entirely on a saturation voltage of the liquid crystal and subsequently shut off the same entirely using the power supply from the auxiliary power source.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: September 6, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Makoto Kanbe, Yasuhisa Itoh, Shigeto Yoshida, Hiroshi Yoneda
  • Publication number: 20050178926
    Abstract: A disengage device in an aircraft, which prevents a driving force of a drive unit from transmitting to a control surface, having: a first rod having one end portion connected to the drive unit, the other end portion, and a hollow portion formed to have a predetermined length and open at the other end portion; a branch pipe which is connected to a side wall of the first rod and communicates with the hollow portion; a second rod having one end portion connected to the push-pull rod, the other end portion, and a recess portion formed in a part of a side wall of a portion which extends a predetermined length from the other end portion to the one end portion side and is inserted in the hollow portion; and an engaging member arranged to be freely movable in the branch pipe, which is engagable with the recess portion.
    Type: Application
    Filed: January 19, 2005
    Publication date: August 18, 2005
    Inventors: Takashi Nagayama, Hiroshi Yoneda, Kenshi Miyata
  • Publication number: 20050168252
    Abstract: A shift register circuit includes a plurality of latch circuits connected in series to sequentially transfer a pulse signal ST from one to another, a clock signal line transmitting a clock signal CLK, and a plurality of switching circuits performing electrical connection and disconnection between the clock signal line and the plurality of latch circuits. Upon turning on the shift register, at least one of the switching circuits electrically disconnects at least one of the latch circuits from the clock signal line. During an initialization period immediately after power has been turned on, the frequency of the clock signal CLK is lower than in a normal operation period and gradually increases toward the frequency used in the normal operation period.
    Type: Application
    Filed: February 23, 2005
    Publication date: August 4, 2005
    Inventors: Yasushi Kubota, Hajime Washio, Shigeto Yoshida, Kazuhiro Maeda, Hiroshi Yoneda
  • Patent number: 6879313
    Abstract: A shift register circuit includes a plurality of latch circuits connected in series to sequentially transfer a pulse signal ST from one to another, a clock signal line transmitting a clock signal CLK, and a plurality of switching circuits performing electrical connection and disconnection between the clock signal line and the plurality of latch circuits. Upon turning on the shift register, at least one of the switching circuits electrically disconnects at least one of the latch circuits from the clock signal line. During an initialization period immediately after power has been turned on, the frequency of the clock signal CLK is lower than in a normal operation period and gradually increases toward the frequency used in the normal operation period.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: April 12, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasushi Kubota, Hajime Washio, Shigeto Yoshida, Kazuhiro Maeda, Hiroshi Yoneda
  • Patent number: 6873313
    Abstract: An image display device of this invention includes a pre-charging voltage stabilizing section having current controlling means and charge holding means which respectively include a resistor and a capacitor to stabilize a pre-charging voltage. The charge holding means holds a voltage to be supplied to data signal lines, and the current controlling means suppresses a current flow from a control signal generating circuit, thereby suppressing power fluctuation at the control signal generating circuit. This suppresses fluctuation in the pre-charging voltage and enables data signal lines to be charged to a predetermined voltage, thereby suppressing deterioration of image quality and an increase in power consumption of the image display device.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: March 29, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hajime Washio, Nobuhiro Kuwabara, Hiroshi Yoneda, Shigeto Yoshida
  • Publication number: 20050056730
    Abstract: Refurbishment work on installation of an automatic pilot apparatus into an aircraft is significantly simplified. An automatic pilot apparatus 1 which is installable in an aircraft comprises: a navigation device 2 to guide the aircraft along a predetermined flight path; actuators 3a to 3d to drive control surfaces of the aircraft; a flight computer 4 to control the actuators 3a to 3d; a case body 10 to contain the navigation device 2, the actuators 3a to 3d, and the flight computer 4; a fixing member to fix the case body 10 to a pilot seat S of the aircraft; and additional rods 30a to 30d to transmit driving forces of the actuators 3a to 3d to the control surfaces.
    Type: Application
    Filed: June 17, 2004
    Publication date: March 17, 2005
    Inventors: Takashi Nagayama, Hiroshi Yoneda
  • Publication number: 20040244478
    Abstract: A thermal air flow rate measuring apparatus of great precision is disclosed. In the thermal air flow rate measuring apparatus, sensitivity is enhanced by sensors having different output characteristics and an operating means employing a digitized signal, and the sensitivity and temperature can be corrected easily depending on the flow direction of fluid.
    Type: Application
    Filed: July 14, 2004
    Publication date: December 9, 2004
    Inventors: Atsushi Kanke, Masamichi Yamada, Shinya Igarashi, Hiroshi Yoneda, Kenji Ohta
  • Patent number: 6550494
    Abstract: An engine valve (6) such as an intake valve or exhaust valve is driven to open or close a corresponding intake or exhaust port by attracting an armature (1) onto one of first and second electromagnets (2, 3) and a position of the armature, viz., the position of the engine valve is measured by a permanent magnet (7) and a Hall effect device (8). An adhesive layer (9) whose hardness is lower than the drive axle (5) is used to attach the permanent magnet (7) onto the drive axle (5).
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: April 22, 2003
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hiroshi Yoneda, Masahiro Kurita, Yasuo Kouda
  • Patent number: 6516785
    Abstract: In a thermal air flow sensor, an air flow measuring element and an intake air temperature sensing element of an intake air temperature sensor are mounted on a single support member so as to be positioned within an intake passage. The support member is made of a glass-ceramic material for example and is held by a holder secured to the wall of an intake pipe. The support member has a structure whereby both sides of a portion of the support member located on the side away from the intake pipe wall are easy to be taken away their heat by an air flow moving through the intake pipe. The air flow measuring element and the intake air temperature sensing element are disposed on such a heat-removed surface of the support member and are electrically connected respectively to conductors disposed on the support member, with their electric connections being sealed with resin, whereby the intake air temperature sensor and the air flow sensor can be rendered integral with each other.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: February 11, 2003
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Keiichi Nakada, Izumi Watanabe, Hiroshi Yoneda, Kei Ueyama, Masamichi Yamada
  • Patent number: 6507332
    Abstract: A driving method for an active-matrix-type image display in which: in the case when the number of divisions of a video signal decreases in accordance with the scanning frequency of an original video signal, eight video signal lines 31a through 31h are divided into groups the number of which corresponds the reduced number of divisions so that the same video signal is inputted to the video signal lines 31 belonging to the same group; and four systems of shift registers SRA through SRD are also divided into groups, SRA, SRB, SRC and SRD so that the same shift clock signal is inputted to the same group. With this method, even upon application of the device to a usage having a different scanning frequency, the construction of the external circuits are optimized so as to fit the different scanning frequency, and the shared use of the substrate is available so that cost reduction is achieved.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: January 14, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Nobuhiro Kuwabara, Hiroshi Yoneda, Akihito Jinda
  • Publication number: 20020105490
    Abstract: An erasing device for a liquid crystal display image of the present invention is furnished with an auxiliary power source for continuously supplying power source to a liquid crystal display panel for a certain period after the main power source of the main body of the liquid crystal display device is turned OFF. Upon input of a power source OFF signal directing to turn OFF the main power source, a driving signal generating circuit and a driver controller light up the liquid crystal display panel entirely on a saturation voltage of the liquid crystal and subsequently shut off the same entirely using the power supply from the auxiliary power source.
    Type: Application
    Filed: March 6, 2002
    Publication date: August 8, 2002
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Makoto Kanbe, Yasuhisa Itoh, Shigeto Yoshida, Hiroshi Yoneda
  • Patent number: 6349596
    Abstract: A thermal type air flow sensor which corrects variation of characteristics of a thermal type air flow sensor due to adherence or deposition of fouling contained in an intake air for maintaining an initial accuracy. An air flow rate is measured by means of a heating resistor and a temperature measuring resistor formed by semiconductor fine patterning. A part of the semiconductor substrate is removed. The heating resistor and a portion of the temperature measuring resistor are formed above a space defined by removing the semiconductor substrate. A voltage of the portion of the temperature measuring resistor located above the space is detected for correcting an error in measurement of an intake air using the voltage detected.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: February 26, 2002
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Keiichi Nakada, Izumi Watanabe, Hiroshi Yoneda
  • Patent number: 6343244
    Abstract: An automatic guidance system guides a flight vehicle having a para foil to a target grounding point. The system opens the para foil of the flight vehicle dropped in a predetermined area above the target grounding point. The system estimates wind velocity and wind direction after the para foil of the flight vehicle is opened. Then, the system determines the landing flight path of the flight vehicle based on the estimated wind velocity and wind direction, guides the flight of the flight vehicle to the determined landing flight path and descends the flight vehicle according to the landing flight path.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: January 29, 2002
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Hiroshi Yoneda, Atsushi Amito
  • Publication number: 20010035213
    Abstract: An engine valve (6) such as an intake valve or exhaust valve is driven to open or close a corresponding intake or exhaust port by attracting an armature (1) onto one of first and second electromagnets (2, 3) and a position of the armature, viz., the position of the engine valve is measured by a permanent magnet (7) and a Hall effect device (8). An adhesive layer (9) whose hardness is lower than the drive axle (5) is used to attach the permanent magnet (7) onto the drive axle (5).
    Type: Application
    Filed: March 21, 2001
    Publication date: November 1, 2001
    Inventors: Hiroshi Yoneda, Masahiro Kurita, Yasuo Kouda
  • Publication number: 20010033261
    Abstract: An image display device of this invention includes a pre-charging voltage stabilizing section having current controlling means and charge holding means which respectively include a resistor and a capacitor to stabilize a pre-charging voltage. The charge holding means holds a voltage to be supplied to data signal lines, and the current controlling means suppresses a current flow from a control signal generating circuit, thereby suppressing power fluctuation at the control signal generating circuit. This suppresses fluctuation in the pre-charging voltage and enables data signal lines to be charged to a predetermined voltage, thereby suppressing deterioration of image quality and an increase in power consumption of the image display device.
    Type: Application
    Filed: March 30, 2001
    Publication date: October 25, 2001
    Inventors: Hajime Washio, Nobuhiro Kuwabara, Hiroshi Yoneda, Shigeto Yoshida
  • Patent number: 6288699
    Abstract: A delay detecting section detects the phase difference between a first detection signal as a reference and a second detection signal produced by delaying the first detection signal with part of a data signal line driving circuit itself or part of a circuit formed by the same process as the data signal line driving circuit. A phase adjusting section presumes an internal delay of the data signal line driving circuit, and adjusts the phase difference between a clock signal and start signal, and a video signal so that the data signal line driving circuit samples the video signal at an appropriate timing. These structures prevent a lowering of the image quality due to a difference in the timings of the video signal and sampling signal, and provide an image display device capable of displaying a good-quality image with a simple circuit structure.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: September 11, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasushi Kubota, Ichiro Shiraki, Tamotsu Sakai, Hiroshi Yoneda, Nobuhiro Kuwabara
  • Patent number: 6175351
    Abstract: The image display apparatus of the present invention including a display device having a plurality of pixels arranged in a matrix and driven by a field sequential scanning system, includes: a display driving circuit for supplying a display signal to each of the pixels; a scanning circuit for supplying a scanning signal to each of the pixels, the scanning circuit allowing the pixel to receive a charge corresponding to the display signal during a predetermined write time; and a write time modulation circuit for modulating the write time of the pixel according to the progress of the scanning by the scanning circuit.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: January 16, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Manabu Matsuura, Hiroshi Yoneda, Yoshitaka Yamamoto, Yutaka Ishii, Shigeto Yoshida
  • Patent number: 6151016
    Abstract: An erasing device for a liquid crystal display image of the present invention is furnished with an auxiliary power source for continuously supplying power source to a liquid crystal display panel for a certain period after the main power source of the main body of the liquid crystal display device is turned OFF. Upon input of a power source OFF signal directing to turn OFF the main power source, a driving signal generating circuit and a driver controller light up the liquid crystal display panel entirely on a saturation voltage of the liquid crystal and subsequently shut off the same entirely using the power supply from the auxiliary power source.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: November 21, 2000
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Makoto Kanbe, Yasuhisa Itoh, Shigeto Yoshida, Hiroshi Yoneda