Patents by Inventor Keisuke Kimura

Keisuke Kimura 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: 10094257
    Abstract: A honeycomb structure includes honeycomb segments each having a porous partition wall defining a plurality of cells, and includes a porous bonding layer containing a crystalline anisotropic ceramic and disposed so as to bond side surfaces of the honeycomb segments to each other. A ratio of a pore volume (cc/g) of a fine pore defined as a pore in the bonding layer having a pore diameter of 10 ?m or more and less than 50 ?m with respect to a pore volume (cc/g) of a coarse pore defined as a pore in the bonding layer having a pore diameter of 50 ?m or more and 300 ?m or less is from 2.0 to 3.5, the pore volume of the fine pore is from 0.15 to 0.4 cc/g, and the pore volume of the coarse pore is from 0.05 to 0.25 cc/g.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: October 9, 2018
    Assignee: NGK Insulators, Ltd.
    Inventors: Keisuke Kimura, Ryuta Kouno, Shuichi Ichikawa
  • Patent number: 10074719
    Abstract: The present application discloses a semiconductor device in which an IGBT region and a diode region are formed on one semiconductor substrate. The IGBT region includes: a collector layer; an IGBT drift layer; a body layer; a gate electrode; and an emitter layer. The diode region includes: a cathode layer; a diode drift layer; an anode layer; a trench electrode; and an anode contact layer. The diode region is divided into unit diode regions by the gate electrode or the trench electrode. In a unit diode region adjacent to the IGBT region, when seen in a plan view of the front surface of the semiconductor substrate, the anode layer and the anode contact layer are mixedly placed, and the anode contact layer is placed at least in a location opposite to the emitter layer with the gate electrode interposed therebetween.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: September 11, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoru Kameyama, Keisuke Kimura
  • Patent number: 10023123
    Abstract: Provided is an image display mirror that includes a half mirror and an image display apparatus, reduces an influence of a reflected image provided by the half mirror, and is excellent in visibility of an image displayed on the image display apparatus. The image display mirror for a vehicle includes: a circularly polarizing plate arranged attachably and removably; a half mirror; and an image display apparatus in the stated order from a viewer side. In one embodiment, attached and removed states of the circularly polarizing plate are switched when an image is displayed on the image display apparatus and when the image is not displayed thereon, and when the image is displayed, the circularly polarizing plate is arranged between the half mirror and a viewer.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: July 17, 2018
    Assignee: NITTO DENKO CORPORATION
    Inventors: Katsunori Takada, Tadayuki Kameyama, Yoshitsugu Kitamura, Keisuke Kimura, Hiroki Kuramoto
  • Patent number: 10020814
    Abstract: An analog-to-digital converter circuit having a simple design and capable of preventing an increase in surface area and other problems. An analog-to-digital converter circuit for converting an analog input signal to a digital quantity includes an analog-to-digital converter unit that converts analog input signals to pre-correction digital values, and a corrector unit that digitally corrects the pre-connection digital values output from the analog-to-digital converter unit. The corrector unit includes a weighting coefficient multiplier unit that outputs a post-correction digital value obtained by multiplying the weighting coefficients provided for each bit by each bit of the pre-correction digital value output from the A/D converter unit and summing them, and a weighting coefficient search unit that searches for weighting coefficients so as to minimize an error signal generated based on the post-correction digital value and an approximate value for the post-correction digital value.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: July 10, 2018
    Assignee: Renesas Electronics Corporation
    Inventors: Keisuke Kimura, Yuichi Okuda, Hideo Nakane, Takaya Yamamoto
  • Patent number: 9972707
    Abstract: A semiconductor device includes a main IGBT region in which an IGBT is provided, a main diode region in which a diode is provided, a sense IGBT region in which an IGBT is provided, and a sense diode region in which a diode is provided. A clearance between the body region and the anode region is longer than a product of electron mobility and electron lifetime in the n-type region between the body region and the anode region. A clearance between an end of the collector region on a sense diode region side and the body region is longer than a product of electron mobility and electron lifetime in the n-type region between the end and the body region.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: May 15, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Kimura, Satoru Kameyama
  • Publication number: 20180120488
    Abstract: There is provided a polarizing plate excellent in durability. A polarizing plate 100 according to one embodiment of the present invention includes a polarizer 10; and a pair of protective films 21, 22 respectively arranged on both main surfaces of the polarizer 10, wherein the polarizing plate 100 has a polarizer void portion 30 formed by positioning of an end surface 10a of the polarizer 10 inward in a plane direction relative to each of end surfaces 21a, 22a of the protective films 21, 22.
    Type: Application
    Filed: March 10, 2016
    Publication date: May 3, 2018
    Applicant: NITTO DENKO CORPORATION
    Inventors: Katsunori Takada, Kota Nakai, Naotaka Higuchi, Keisuke Kimura, Yoshitsugu Kitamura, Hiroki Kuramoto
  • Patent number: 9959646
    Abstract: According to one aspect of an embodiment, an information display device includes a display unit that displays first content in a display region. The information display device includes a detection unit configured to detect a physical state of a terminal device. The information display device includes a display control unit configured to direct the display unit to display second new content in the display region while changing a display mode of the first content, on the basis of the detection result of the detection unit.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: May 1, 2018
    Assignee: YAHOO JAPAN CORPORATION
    Inventors: Chiemi Taki, Daisuke Kobayashi, Keisuke Kimura, Tatsuaki Suzuki, Kensuke Takada
  • Patent number: 9960778
    Abstract: A semiconductor device according to an aspect of the invention relates to an AD converter that converts a signal level of an analog signal into a digital value by using a comparator, and determines an amount of adjustment of an offset voltage of the comparator based on an offset determination result of the comparator obtained immediately after a least significant bit (LSB) of a digital value output as a conversion result is converted.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: May 1, 2018
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Keisuke Kimura, Yuichi Okuda, Hideo Nakane, Takaya Yamamoto
  • Publication number: 20180052043
    Abstract: A multi-optical axis photoelectric sensor includes: a pair of body-side packings which seal between a body housing and both side edges of a light transmissive plate; first packings which seal between caps and the side edges of the light transmissive plate, and between the caps and end portions of the light transmissive plate, and which are connected to the pair of body-side packings; and second packings which are integrally molded with the first packings, respectively, and which seal between the caps and the body housing.
    Type: Application
    Filed: January 18, 2016
    Publication date: February 22, 2018
    Applicant: PANASONIC INDUSTRIAL DEVICES SUNX CO., LTD.
    Inventor: Keisuke KIMURA
  • Publication number: 20180011233
    Abstract: There is provided a polarizer excellent in durability. A polarizer according to one embodiment of the present invention includes a resin film containing boric acid, wherein the resin film has a low-concentration portion, which contains a lower concentration of the boric acid than that in any other site, formed in an end portion thereof.
    Type: Application
    Filed: March 10, 2016
    Publication date: January 11, 2018
    Applicant: NITTO DENKO CORPORATION
    Inventors: Katsunori Takada, Kota Nakai, Naotaka Higuchi, Keisuke Kimura, Yoshitsugu Kitamura, Hiroki Kuramoto
  • Publication number: 20170284246
    Abstract: A honeycomb structure includes honeycomb segments each having a porous partition wall defining a plurality of cells, and includes a porous bonding layer containing a crystalline anisotropic ceramic and disposed so as to bond side surfaces of the honeycomb segments to each other. A ratio of a pore volume (cc/g) of a fine pore defined as a pore in the bonding layer having a pore diameter of 10 ?m or more and less than 50 ?m with respect to a pore volume (cc/g) of a coarse pore defined as a pore in the bonding layer having a pore diameter of 50 ?m or more and 300 ?m or less is from 2.0 to 3.5, the pore volume of the fine pore is from 0.15 to 0.4 cc/g, and the pore volume of the coarse pore is from 0.05 to 0.25 cc/g.
    Type: Application
    Filed: March 23, 2017
    Publication date: October 5, 2017
    Applicant: NGK INSULATORS, LTD.
    Inventors: Keisuke KIMURA, Ryuta KOUNO, Shuichi ICHIKAWA
  • Publication number: 20170277178
    Abstract: A vehicle operating device includes a portable display unit configured to display a state of a vehicle, a portable input unit configured to receive operation information of the vehicle input thereto on the basis of a displayed content by the display unit, a first information processing unit configured to process first information among input operation information, a second information processing unit configured to process second information, which is different from the first information, among the input operation information, an interlock system configured to enable only the first information to be processed in an operating state and enable the first information and the second information to be processed in a released state, and a portable wireless output unit configured to output an operation signal of the vehicle based only on the first information processed in the operating state.
    Type: Application
    Filed: September 8, 2015
    Publication date: September 28, 2017
    Inventors: Keisuke KIMURA, Kenta MASUMORI, Fujio SHINOKI, Satoshi KAWAMOTO
  • Publication number: 20170250697
    Abstract: An analog-to-digital converter circuit having a simple design and capable of preventing an increase in surface area and other problems. An analog-to-digital converter circuit for converting an analog input signal to a digital quantity includes an analog-to-digital converter unit that converts analog input signals to pre-correction digital values, and a corrector unit that digitally corrects the pre-connection digital values output from the analog-to-digital converter unit. The corrector unit includes a weighting coefficient multiplier unit that outputs a post-correction digital value obtained by multiplying the weighting coefficients provided for each bit by each bit of the pre-correction digital value output from the A/D converter unit and summing them, and a weighting coefficient search unit that searches for weighting coefficients so as to minimize an error signal generated based on the post-correction digital value and an approximate value for the post-correction digital value.
    Type: Application
    Filed: May 15, 2017
    Publication date: August 31, 2017
    Inventors: Keisuke KIMURA, Yuichi OKUDA, Hideo NAKANE, Takaya YAMAMOTO
  • Patent number: 9707897
    Abstract: An image display mirror for a vehicle includes a first polarizing plate arranged so as to be rotatable in a plane, a half mirror having a reflection axis and configured to reflect polarized light, and an image display apparatus in the stated order from a viewer side, in which: the first polarizing plate has a polarizer; a rotation of the first polarizing plate changes an angle of an absorption axis of the polarizer relative to a reflection axis of the half mirror when an image is not displayed on the image display apparatus and when the image is displayed thereon; when the image is not displayed, the absorption axis of the polarizer and the reflection axis of the half mirror are perpendicular to each other; and when the image is displayed, the absorption axis of the polarizer and the reflection axis of the half mirror are parallel to each other.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: July 18, 2017
    Assignee: NITTO DENKO CORPORATION
    Inventors: Katsunori Takada, Tadayuki Kameyama, Yoshitsugu Kitamura, Keisuke Kimura, Hiroki Kuramoto
  • Publication number: 20170201264
    Abstract: A semiconductor device according to an aspect of the invention relates to an AD converter that converts a signal level of an analog signal into a digital value by using a comparator, and determines an amount of adjustment of an offset voltage of the comparator based on an offset determination result of the comparator obtained immediately after a least significant bit (LSB) of a digital value output as a conversion result is converted.
    Type: Application
    Filed: March 29, 2017
    Publication date: July 13, 2017
    Inventors: Keisuke KIMURA, Yuichi OKUDA, Hideo NAKANE, Takaya YAMAMOTO
  • Patent number: 9685968
    Abstract: An analog-to-digital converter circuit having a simple design and capable of preventing an increase in surface area and other problems. An analog-to-digital converter circuit for converting an analog input signal to a digital quantity includes an analog-to-digital converter unit that converts analog input signals to pre-correction digital values, and a corrector unit that digitally corrects the pre-connection digital values output from the analog-to-digital converter unit. The corrector unit includes a weighting coefficient multiplier unit that outputs a post-correction digital value obtained by multiplying the weighting coefficients provided for each bit by each bit of the pre-correction digital value output from the A/D converter unit and summing them, and a weighting coefficient search unit that searches for weighting coefficients so as to minimize an error signal generated based on the post-correction digital value and an approximate value for the post-correction digital value.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: June 20, 2017
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Keisuke Kimura, Yuichi Okuda, Hideo Nakane, Takaya Yamamoto
  • Publication number: 20170123125
    Abstract: There is provided a polarizer excellent in heat resistance. A polarizer according to an embodiment of the present invention includes a resin film containing iodine, wherein an end portion of the resin film has formed therein a high-concentration portion having a concentration of a substance that forms a counter ion of iodine higher than that of another portion.
    Type: Application
    Filed: October 31, 2016
    Publication date: May 4, 2017
    Applicant: NITTO DENKO CORPORATION
    Inventors: Katsunori Takada, Daisuke Ogomi, Shinobu Nagano, Eiko Suefusa, Yoshitsugu Kitamura, Hiroki Kuramoto, Youichirou Sugino, Keisuke Kimura
  • Publication number: 20170123111
    Abstract: A primary object of the present invention is to provide a polarizing plate excellent in durability. A polarizing plate (100) according to an embodiment of the present invention includes: a polarizer (10); and a protective film (21 and 22) arranged on at least one side of the polarizer (10). The polarizing plate (100) has a dimensional change ratio of ?0.2% or more in a transmission axis direction thereof when the polarizing plate (100) cut into a size measuring 100 mm by 100 mm is bonded to a glass plate with a pressure-sensitive adhesive and the following operation is repeated 100 times: the polarizing plate (100) bonded to the glass plate is left to stand under an atmosphere at ?40° C. for 30 minutes and then left to stand under an atmosphere at 85° C. for 30 minutes.
    Type: Application
    Filed: October 11, 2016
    Publication date: May 4, 2017
    Applicant: NITTO DENKO CORPORATION
    Inventors: Katsunori Takada, Naotaka Higuchi, Kota Nakai, Shinobu Nagano, Eiko Suefusa, Yoshitsugu Kitamura, Keisuke Kimura
  • Publication number: 20170123123
    Abstract: There is provided a polarizing plate excellent in durability A method of producing a polarizing plate according to an embodiment of the present invention includes: preparing a polarizing film laminate including a polarizer and a protective film arranged on at least one side of the polarizer; and shrinking the polarizing film laminate.
    Type: Application
    Filed: October 24, 2016
    Publication date: May 4, 2017
    Applicant: NITTO DENKO CORPORATION
    Inventors: Katsunori Takada, Shinobu Nagano, Eiko Suefusa, Yoshitsugu Kitamura, Keisuke Kimura, Hiroki Kuramoto, Youichirou Sugino
  • Publication number: 20170123266
    Abstract: There is provided a polarizing plate which is imparted durability. A polarizing plats with a pressure-sensitive adhesive, layer according to an embodiment of the present invention includes: a polarizing plate including a polarizer and a protective film arranged on at least one side of the polarizer; and a pressure-sensitive adhesive layer formed on at least one surface of the polarizing plate, wherein in the surface of the polarizing plate where the pressure-sensitive adhesive layer is formed, a non-contact portion that is out of contact with the pressure-sensitive adhesive layer is formed in an end portion of the polarizing plate.
    Type: Application
    Filed: November 2, 2016
    Publication date: May 4, 2017
    Applicant: NITTO DENKO CORPORATION
    Inventors: Katsunori Takada, Kota Nakai, Naotaka Higuchi, Shinobu Nagano, Eiko Suefusa, Yoshitsugu Kitamura, Youichirou Sugino, Keisuke Kimura