Patents by Inventor Ichiro Murakami

Ichiro Murakami 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: 10126522
    Abstract: A lens drive device is provided with: an AF drive unit that has an AF coil unit disposed around a lens unit and an AF magnet unit disposed separately in the radial direction with respect to the AF coil unit and automatically carries out focusing; and an OIS drive unit that has an OIS magnet unit disposed in an AF unit that includes a movable AF unit and a fixed AF unit and an OIS coil unit disposed separately in the direction of the optical axis with respect to the OIS magnet unit and carries out shake correction. The AF drive unit has an elastic support unit that connects the movable AF unit with the fixed AF unit. The movable AF unit is supported movably both ways in the direction of the optical axis by an elastic member.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: November 13, 2018
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Shota Kudo, Ichiro Hayashi, Tomoyuki Murakami
  • Publication number: 20180316052
    Abstract: A nonaqueous electrolyte secondary battery insulating porous layer which has an excellent discharge output characteristic is provided. The insulating porous layer is arranged such that an aspect ratio of a projection image of an inorganic filler at a surface of the insulating porous layer is in a range of 1.4 to 4.0 and respective peak intensities I(hkl) and I(abc) of any diffraction planes (hkl) and (abc) of the insulating porous layer satisfy the following Formula (1). The peak intensities obtained from the diffraction planes (hkl) and (abc) orthogonal to each other are measured using a wide-angle X-ray diffraction method, and a maximum value of the peak intensity ratio is in a range of 1.5 to 300 when calculated by the following Formula (2): I(hkl)>I(abc)??(1) I(hkl)/I(abc)??(2).
    Type: Application
    Filed: April 27, 2018
    Publication date: November 1, 2018
    Inventors: Ichiro ARISE, Chikara MURAKAMI
  • Publication number: 20180316053
    Abstract: An insulating porous layer for a nonaqueous electrolyte secondary battery having excellent separator resistance is provided. The porous layer contains an inorganic filler and a resin, a central particle diameter of the inorganic filler is in a range of 0.1 ?m to 11 ?m, a BET specific surface area per unit area of the inorganic filler is not greater than 100 m2/g, and the value of formula (1) is in a range of 0.10 to 0.40: [1?T/M]??(1) In formula (1), T and M respectively represent a distance by which the insulating porous layer moves in a traverse direction or a machine direction from a starting point of measurement to a point where a critical load is obtained in a scratch test under a constant load of 0.1 N.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 1, 2018
    Inventors: Kosuke KURAKANE, Ichiro ARISE, Chikara MURAKAMI
  • Patent number: 10105634
    Abstract: A compressed air drier includes a support base, a desiccant cartridge coupled to the support base, and a case that covers the cartridge and is coupled to the support base. The support base includes an inlet for compressed air from a compressor, an outlet for the compressed air, and a discharge port for oil and water including a drain valve device. An electrically charged oil adsorbent is accommodated between the cartridge and the case. The cartridge is filled with a desiccant. The compressed air drier dries the compressed air entering the inlet with the desiccant during a loading operation, collects the dried compressed air in the case, and discharges the dried compressed air from the outlet. The compressed air drier passes the compressed air in the case through the cartridge during an unloading operation to discharge oil and water from the discharge port.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: October 23, 2018
    Assignee: NABTESCO AUTOMOTIVE CORPORATION
    Inventors: Ichiro Minato, Takuya Sugio, Masanori Momoki, Hiroyuki Murakami
  • Publication number: 20180301680
    Abstract: A nonaqueous electrolyte secondary battery insulating porous layer having which is excellent in heat resistance and oxidation resistance in a battery is realized. A nonaqueous electrolyte secondary battery insulating porous layer includes aromatic polyester containing (A) a unit derived from aromatic hydroxycarboxylic acid, (B) a unit derived from aromatic dicarboxylic acid, (C) a unit derived from aromatic amine, selected from aromatic diamine and aromatic amine containing a hydroxyl group, and (D) a unit derived from aromatic diol, in respective predetermined ratios.
    Type: Application
    Filed: May 11, 2017
    Publication date: October 18, 2018
    Inventors: Ichiro ARISE, Junji SUZUKI, Hiroki HASHIWAKI, Chikara MURAKAMI
  • Publication number: 20180254460
    Abstract: The present invention provides a nonaqueous electrolyte secondary battery separator that makes it possible to provide a nonaqueous electrolyte secondary battery having a low battery resistance after an aging charge and discharge of the nonaqueous electrolyte secondary battery and a low battery resistance after repetition of a charge and discharge cycle. The nonaqueous electrolyte secondary battery separator includes a polyolefin porous film, wherein a magnitude of a slope of a tangent in a region III of an ultrasonic attenuation rate curve of the nonaqueous electrolyte secondary battery separator immersed in an electrolyte is not less than 3.5 mV/s to not more than 14 mV/s.
    Type: Application
    Filed: March 2, 2018
    Publication date: September 6, 2018
    Inventors: Ichiro ARISE, Chikara MURAKAMI
  • Publication number: 20180254458
    Abstract: A nonaqueous electrolyte secondary battery separator including a polyolefin porous film, wherein a magnitude of a slope of a tangent in a region II of an ultrasonic attenuation rate curve of the nonaqueous electrolyte secondary battery separator immersed in an electrolyte is not less than 100 mV/s to not more than 1450 mV/s, makes it possible to provide a nonaqueous electrolyte secondary battery having a low battery resistance increasing rate after charge and discharge (after a degassing operation).
    Type: Application
    Filed: March 2, 2018
    Publication date: September 6, 2018
    Inventors: Ichiro ARISE, Chikara MURAKAMI
  • Publication number: 20180254451
    Abstract: The present invention provides a nonaqueous electrolyte secondary battery separator that makes it possible to provide a nonaqueous electrolyte secondary battery having a low electrode resistance changing rate after a first charge and discharge of the nonaqueous electrolyte secondary battery. The nonaqueous electrolyte secondary battery separator includes a polyolefin porous film, wherein a magnitude of a slope of a tangent in a region I of an ultrasonic attenuation rate curve of the nonaqueous electrolyte secondary battery separator immersed in an electrolyte is not less than 3600 mV/s to not more than 9000 mV/s.
    Type: Application
    Filed: March 2, 2018
    Publication date: September 6, 2018
    Inventors: Ichiro ARISE, Chikara MURAKAMI
  • Publication number: 20180254459
    Abstract: As a nonaqueous electrolyte secondary battery separator used to produce a nonaqueous electrolyte secondary battery which is low in resistance increasing rate in a case where the nonaqueous electrolyte secondary battery is repeatedly subjected to a charge-discharge cycle, the present invention provides a nonaqueous electrolyte secondary battery separator which includes a polyolefin porous film, the nonaqueous electrolyte secondary battery separator having ion permeability barrier energy of not less than 300 J/mol/?m and not more than 900 J/mol/?m.
    Type: Application
    Filed: March 2, 2018
    Publication date: September 6, 2018
    Inventors: Ichiro ARISE, Chikara MURAKAMI
  • Publication number: 20160195226
    Abstract: A light source unit is used in a multiply combined manner, and includes a light source element having a substrate and one or more light emitting elements disposed on the substrate. The light source unit is configured such that when a plurality of the light source units are arranged in cascade, the light source element in the light source unit comes to in electric connection with another light source element in an adjacent light source unit. Thereby, the plurality of light source units may emit light at the same time. Thus, the structure similar to rod-shaped light source such as CCFL is achieved.
    Type: Application
    Filed: March 15, 2016
    Publication date: July 7, 2016
    Applicant: Sony Corporation
    Inventors: Norimasa Furukawa, Hiroshi Murayama, Ichiro Murakami
  • Patent number: 9318058
    Abstract: A display unit includes: an image display panel; a backlight section disposed on a back surface of the image display panel, and including a light guide member and a polymer dispersed liquid crystal panel; a light source emitting light, the light being allowed to enter the light guide member of the backlight section; a polymer dispersed liquid crystal panel drive section driving the polymer dispersed liquid crystal panel of the backlight section in synchronization with writing of an image displayed on the image display panel to control a location that scatters light incident on the light guide member on the polymer dispersed liquid crystal panel; and a light source drive section allowing the light source to blink in synchronization with a period in which light is scattered by the polymer dispersed liquid crystal panel.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: April 19, 2016
    Assignee: Sony Corporation
    Inventors: Norimasa Furukawa, Naoki Ikawa, Ichiro Murakami, Kentaro Okuyama, Akira Ebisui
  • Patent number: 9316360
    Abstract: A light source unit is used in a multiply combined manner, and includes a light source element having a substrate and one or more light emitting elements disposed on the substrate. The light source unit is configured such that when a plurality of the light source units are arranged in cascade, the light source element in the light source unit comes to in electric connection with another light source element in an adjacent light source unit. Thereby, the plurality of light source units may emit light at the same time. Thus, the structure similar to rod-shaped light source such as CCFL is achieved.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: April 19, 2016
    Assignee: Sony Corporation
    Inventors: Norimasa Furukawa, Hiroshi Murayama, Ichiro Murakami
  • Patent number: 8917767
    Abstract: The present invention provides an image display apparatus capable of reducing a judder and simultaneously weakening the degree of reducing the judder at the time of converting frame rate of a film signal using motion compensation. At the time of converting frame rate of a video signal by adding N (N: integer of 2 or larger) interpolation frames into between original frames neighboring each other along time base obtained from video images in original frames by using motion compensation so that interpolation positions of the video images in the N interpolation frames are set to a deviated position which is closer to the nearest video image in the original frames rather than positions obtained by equally dividing, into (N+1) portions, magnitude of video image motion between an earlier original frame and a following original frame along the time base.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: December 23, 2014
    Assignee: Sony Corporation
    Inventors: Shinichiro Miyazaki, Ichiro Murakami, Toru Nishi
  • Patent number: 8780253
    Abstract: A solid-state imaging device includes a semiconductor substrate having a principal surface, and three or more pixel regions formed in at least one direction of two different directions along the principal surface of the semiconductor substrate. Each pixel region includes a plurality of photoelectric conversion regions having different sensitivities. The photoelectric conversion region having the highest sensitivity in peripheral pixel regions of the pixel regions has a higher sensitivity than the photoelectric conversion region having the highest sensitivity in a central pixel region of the pixel regions.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: July 15, 2014
    Assignee: Sony Corporation
    Inventor: Ichiro Murakami
  • Publication number: 20140139461
    Abstract: A display unit includes: an image display panel; a backlight section disposed on a back surface of the image display panel, and including a light guide member and a polymer dispersed liquid crystal panel; a light source emitting light, the light being allowed to enter the light guide member of the backlight section; a polymer dispersed liquid crystal panel drive section driving the polymer dispersed liquid crystal panel of the backlight section in synchronization with writing of an image displayed on the image display panel to control a location that scatters light incident on the light guide member on the polymer dispersed liquid crystal panel; and a light source drive section allowing the light source to blink in synchronization with a period in which light is scattered by the polymer dispersed liquid crystal panel.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 22, 2014
    Applicant: SONY CORPORATION
    Inventors: Norimasa Furukawa, Naoki Ikawa, Ichiro Murakami, Kentaro Okuyama, Akira Ebisui
  • Patent number: 8441468
    Abstract: The present invention provides an image display apparatus capable of reducing a hold blur in accordance with circumstances. A black inserting process for inserting a black display area into a display screen in a liquid crystal display panel 2 according to at least one of substance of a video signal in an original frame and brightness of viewing environment for user is performed. Concretely, for example, when a video signal in the original frame is a cinema signal (film signal), the black inserting process of inserting a black display area into the display screen in the liquid crystal display panel 2 is performed. More concretely, for example, a backlight driving unit 71 performs switching drive between turn-on and turn-off of a backlight 72 so that the black inserting process is performed on the display screen in the liquid crystal display panel 2.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: May 14, 2013
    Assignee: Sony Corporation
    Inventors: Shinichiro Miyazaki, Ichiro Murakami, Toru Nishi
  • Patent number: 8248359
    Abstract: A display apparatus includes a display section, a backlight, and a drive section. The display section is formed from a liquid crystal display apparatus of the transmission type having a display area formed from pixels arranged in a matrix. The backlight is formed from a plurality of light source units disposed individually corresponding to a plurality of display area units which form the display area and configured to illuminate the back side of the display section. The drive section is configured to drive the display section and the backlight based on input signals from the outside. The drive section includes a control section configured to control a light emitting state of the light source unit corresponding to each of the display area units based on a display area unit internal maximum input signal which indicates a maximum value from among the input signals corresponding to the display area unit.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: August 21, 2012
    Assignee: Sony Corporation
    Inventors: Tetsuji Inada, Mitsuyasu Asano, Yoshihiro Katsu, Norimasa Furukawa, Ichiro Murakami
  • Patent number: 8213504
    Abstract: The present invention provides an image display apparatus capable of suppressing deterioration in picture quality resulting from precision of detection of a motion vector at the time of performing a predetermined video signal process to improve picture quality. In consideration of reliability in detection of a motion vector mv by a motion vector detector 44, a video signal process in an interpolation section 45, an imaging blur suppression processor 13, and an overdrive processor 10 is performed. Concretely, the video signal process is performed so that a degree of the video signal process rises as reliability increases and, on the other hand, a degree of the video signal process falls off as the reliability decreases. In the case of performing the video signal process using a motion vector, even when a motion vector lies out of a motion vector search range (block matching range), the video signal process according to the motion vector detection precision can be performed.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: July 3, 2012
    Assignee: Sony Corporation
    Inventors: Shinichiro Miyazaki, Ichiro Murakami, Toru Nishi
  • Publication number: 20120119069
    Abstract: A solid-state imaging device includes a semiconductor substrate having a principal surface, and three or more pixel regions formed in at least one direction of two different directions along the principal surface of the semiconductor substrate. Each pixel region includes a plurality of photoelectric conversion regions having different sensitivities. The photoelectric conversion region having the highest sensitivity in peripheral pixel regions of the pixel regions has a higher sensitivity than the photoelectric conversion region having the highest sensitivity in a central pixel region of the pixel regions.
    Type: Application
    Filed: December 5, 2011
    Publication date: May 17, 2012
    Applicant: Sony Corporation
    Inventor: Ichiro Murakami
  • Publication number: 20120062584
    Abstract: An image display apparatus and an image display method capable of suppressing the color breakup occurring during eye tracking of a picture with motion in a field-sequential display are provided. A display section (a display panel 2 and a backlight 3) time-divisionally displays, in a manner of the field-sequential display, field images of plural colors in a display sequence controlled by a display sequence control section 12. The display sequence of the field images of plural colors is controlled to allow a composite luminance distribution perceived by a viewer on his retina to have a predetermined profile, the composite luminance distribution being created based on a group of field images which configures a frame or two frames in successive time sequence in a picture with motion displayed on the display section, the predetermined profile having highest luminance in a mid-range thereof and having luminance getting lower toward a periphery thereof to spread with bilateral-symmetry.
    Type: Application
    Filed: May 20, 2010
    Publication date: March 15, 2012
    Inventors: Norimasa Furukawa, Ichiro Murakami