Patents by Inventor Toshikazu Kawaguchi

Toshikazu Kawaguchi 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: 10871928
    Abstract: An information terminal includes: a communication unit; and a control unit configured to control the communication unit, wherein the control unit is configured to establish a communication channel with another terminal by using the communication unit, and the communication unit is configured to receive device information containing an address of an image processing device positioned on the periphery of the another terminal, and transmit the device information of the image processing device positioned on the periphery of the another terminal to an image processing device positioned on the periphery of the information terminal.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: December 22, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Toshihiko Otake, Kazumi Sawayanagi, Hisashi Uchida, Hidetaka Iwai, Yosuke Taniguchi, Toshikazu Kawaguchi, Hideaki Soejima
  • Publication number: 20200353383
    Abstract: A filtration device that includes: a filtration filter having a first main surface that captures a filtration target object contained in a liquid and a second main surface that faces the first main surface; and a housing that holds the filtration filter, and defines a liquid inflow path that faces the first main surface and a liquid discharge path that faces the second main surface, the housing including a tubular portion that extends in a direction away from the second main surface of the filtration filter and defines the liquid discharge path, and a flange portion that extends from an outer peripheral surface of the tubular portion, and the flange portion includes a vent hole extending away from the outer peripheral surface of the tubular portion.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 12, 2020
    Inventors: Toshikazu Kawaguchi, Takashi Kondo
  • Publication number: 20200346144
    Abstract: A filtration filter that includes a filter section having a plurality of through-holes passing through a first main surface and constructed such that objects to be filtered contained in a liquid are captured and a second main surface opposite the first main surface; and a frame section surrounding an outer periphery of the filter section, wherein a first film thickness at a center of the filter section is larger than a second film thickness of the filter section at a position closer to the frame section than the center of the filter section.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 5, 2020
    Inventors: Shusuke Yokota, Masaru Banju, Toshikazu Kawaguchi, Takashi Kondo
  • Patent number: 10797643
    Abstract: An oscillation circuit has a charge-discharge type oscillation unit that performs an oscillation operation at an oscillating frequency that is in accordance with a control current value, and a control current generation unit that generates the control current. The control current generation unit includes a reference voltage generation circuit that generates a reference voltage that has a first temperature characteristic, a temperature characteristic slope correction circuit that corrects a slope of a temperature characteristic of a reference voltage in accordance with first correction information and generates an output voltage that has a second temperature characteristic, and a voltage-current conversion circuit that converts the output voltage of the temperature characteristic slope correction circuit into the control voltage, and that corrects the control current value in accordance with second correction information.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: October 6, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshikazu Kuwano, Takahiro Kikuchi, Sachiyuki Abe, Shuji Kawaguchi
  • Patent number: 10714243
    Abstract: Provided is a variable resistance circuit in which the resistance value of the variable resistance circuit can be accurately adjusted, by reducing the error in the change amount of the resistance value of the variable resistance circuit due to the on-resistances of switch circuits even if the switch circuits that each bypass a resistor included in a ladder resistor circuit are switched between an OFF state and an ON state. This variable resistance circuit includes: a ladder resistor circuit including a plurality of resistors; a first switch circuit connected in series to one end of one resistor of the plurality of resistors; and a second switch circuit connected in parallel to a series circuit of the one resistor and the first switch circuit. When one of the first and second switch circuits is turned on, the other of the first and second switch circuits is turned off.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: July 14, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takahiro Kikuchi, Toshikazu Kuwano, Sachiyuki Abe, Shuji Kawaguchi
  • Publication number: 20200212185
    Abstract: A semiconductor device having favorable electrical characteristics is provided. The semiconductor device includes an oxide semiconductor, a first insulator in contact with the oxide semiconductor, and a second insulator in contact with the first insulator. The first insulator includes excess oxygen. The second insulator has a function of trapping or fixing hydrogen. Hydrogen in the oxide semiconductor is bonded to the excess oxygen. The hydrogen bonded to the excess oxygen passes through the first insulator and is trapped or fixed in the second insulator. The excess oxygen bonded to the hydrogen remains in the first insulator as the excess oxygen.
    Type: Application
    Filed: November 25, 2019
    Publication date: July 2, 2020
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Daisuke YAMAGUCHI, Shinobu KAWAGUCHI, Yoshihiro KOMATSU, Toshikazu OHNO, Yasumasa YAMANE, Tomosato KANAGAWA
  • Patent number: 10686957
    Abstract: An image processing apparatus that executes a plurality of processes related to a file, includes: a memory that stores a file; a processor that executes virus checking on the file. The memory stores: virus type information that associates a type of a virus detected during the virus checking with at least one of the plurality of processes; and file type information that associates a type of file with at least one of the plurality of processes, and the processor restricts one of the plurality of processes associated with the type of the detected virus, and another of the plurality of processes associated with the type of file possibly infected with the detected virus.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: June 16, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Toshikazu Kawaguchi, Shinya Hashimoto, Yuki Asai
  • Publication number: 20200155990
    Abstract: A filtration device includes a first channel member, a second channel member, and a filter. The first channel member has a recess recessed inward from an outer wall surface. A groove is formed is the recess and has an opening in a recessed surface of the recess. First and second channels, each defined by a through-hole, are formed in the first channel member and are connected to the groove. A first connection part connects the groove with the first channel. The second channel member has a projection that detachably mates with the recess. The second channel member includes a discharge channel that has an opening in a projecting surface of the projection, the opening being located over the groove. The filter is disposed along the groove, and positioned at the opening of the discharge channel. When the first and second channel members are placed in a operative relationship, a third channel is formed by the projecting surface of the projection and the opening of the groove.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 21, 2020
    Inventors: Toshikazu Kawaguchi, Masaru Banju, Takashi Kondo
  • Publication number: 20200155981
    Abstract: A filtration device includes a container, a channel member, and a filter. The container has a space of variable volume that contains a liquid, the liquid including a target substance to be separated by filtration. The channel member includes a channel and an opening that are defined therein, the opening being provided at a position along the channel in a direction transverse to the direction in which the channel extends. The channel member has an attachment part to which the container is attached and which provides communication between the space in the container and the channel. The filter is attached inside the channel member and positioned at the opening.
    Type: Application
    Filed: January 27, 2020
    Publication date: May 21, 2020
    Inventors: Toshikazu Kawaguchi, Masaru Banju, Takashi Kondo
  • Publication number: 20200153983
    Abstract: An information processing system includes a voice collecting device that collects a voice, and an information processing apparatus capable of generating a job, wherein either of the voice collecting device and the information processing apparatus includes a hardware processor that specifies a user who has uttered, and the hardware processor of the information processing apparatus generates, as the job, based on information obtained from a voice in which a first user and a second user are individually specified by the hardware processor, a request job that the first user has requested the second user to execute.
    Type: Application
    Filed: October 16, 2019
    Publication date: May 14, 2020
    Applicant: KONICA MINOLTA, INC.
    Inventors: Kazumi SAWAYANAGI, Tomoaki NAKAJIMA, Katsuhiko AKITA, Toshikazu KAWAGUCHI, Takashi OTSUKA, Daisuke NAKANO
  • Publication number: 20200129925
    Abstract: A concentration apparatus that includes a liquid tank storing a liquid containing a filtration object, a tubular member having first and second end portions disposed in the liquid tank and forming a first circulation flow path therebetween, a circulation pump for supplying the liquid stored in the liquid tank to flow from the first end portion to the second end portion, a filtration filter disposed in a sidewall of the tubular member, a bypass pipe having first and second ends thereof connected to sidewalls of the tubular member so as to form a second circulation flow path between the first and second end portions of the tubular member, a switching valve constructed to cause the liquid to flow in one of the first or second circulation flow paths, and a control unit controlling driving of the circulation pump and a switching operation of the switching valve.
    Type: Application
    Filed: December 24, 2019
    Publication date: April 30, 2020
    Inventors: Toshikazu Kawaguchi, Junko Watanabe, Takashi Kondo
  • Patent number: 10545703
    Abstract: A printing system includes: a printing apparatus; a portable terminal device; and a server, which are connectable to each other, the printing apparatus including a profile creation unit, and a transmission unit, the portable terminal device including a display unit, a transfer request unit, a transfer unit, and a print instruction unit, the server including a saving unit, a reception unit, and a transmission unit, the printing apparatus further including a reception unit, and a print performing unit.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: January 28, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Takeshi Maekawa, Katsuhiko Akita, Kenro Hama, Toshikazu Kawaguchi, Kazusei Takahashi, Daisuke Sakiyama, Yuki Asai, Yuji Tanaka
  • Patent number: 10509896
    Abstract: An image forming apparatus including a communication circuit configured to establish proximity communication with a biometric authentication apparatus, a display, and a processor configured to perform authentication processing with biological information detected by the biometric authentication apparatus is provided. The processor is configured to carry out control for reducing a quantity of light output from the display and incident on the biometric authentication apparatus during detection of the biological information by the biometric authentication apparatus when the processor receives information representing optical detection of the biological information by the biometric authentication apparatus from the biometric authentication apparatus through the communication circuit.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: December 17, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Masao Hosono, Kaitaku Ozawa, Kenichi Takahashi, Toshikazu Kawaguchi, Daisuke Nakano, Tomoaki Nakajima
  • Publication number: 20190373129
    Abstract: An image processing apparatus that executes a plurality of processes related to a file, includes: a memory that stores a file; a processor that executes virus checking on the file. The memory stores: virus type information that associates a type of a virus detected during the virus checking with at least one of the plurality of processes; and file type information that associates a type of file with at least one of the plurality of processes, and the processor restricts one of the plurality of processes associated with the type of the detected virus, and another of the plurality of processes associated with the type of file possibly infected with the detected virus.
    Type: Application
    Filed: May 30, 2019
    Publication date: December 5, 2019
    Applicant: Konica Minolta, Inc.
    Inventors: Toshikazu Kawaguchi, Shinya Hashimoto, Yuki Asai
  • Patent number: 10421844
    Abstract: A self-assembled monolayer is formed on the surface of a molded article without roughening the surface of the molded article to thereby perform treatment for preventing a biochemical substance from being adsorbed, for example, on a microchip substrate, and imparting functionality of immobilizing a biofunctional molecule thereto. The surface of a cyclic olefin resin molded article, for example, a microchip substrate, is irradiated with vacuum ultraviolet light having a center wavelength of 172 nm from an excimer lamp to activate a portion serving as a flow channel in the substrate. Next, the molded is immersed in a tank filled, for example, with a fluorine compound solution, and a SAM film that is a self-assembled monolayer is formed on the surface activated by ultraviolet radiation.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: September 24, 2019
    Assignee: USHIO DENKI KABUSHIKI KAISHA
    Inventors: Masaki Miura, Shinji Suzuki, Kinichi Morita, Toshikazu Kawaguchi, Katsuaki Shimazu
  • Publication number: 20190267972
    Abstract: Provided is a variable resistance circuit in which the resistance value of the variable resistance circuit can be accurately adjusted, by reducing the error in the change amount of the resistance value of the variable resistance circuit due to the on-resistances of switch circuits even if the switch circuits that each bypass a resistor included in a ladder resistor circuit are switched between an OFF state and an ON state. This variable resistance circuit includes: a ladder resistor circuit including a plurality of resistors; a first switch circuit connected in series to one end of one resistor of the plurality of resistors; and a second switch circuit connected in parallel to a series circuit of the one resistor and the first switch circuit. When one of the first and second switch circuits is turned on, the other of the first and second switch circuits is turned off.
    Type: Application
    Filed: February 25, 2019
    Publication date: August 29, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takahiro KIKUCHI, Toshikazu KUWANO, Sachiyuki ABE, Shuji KAWAGUCHI
  • Publication number: 20190199287
    Abstract: An oscillation circuit has a charge-discharge type oscillation unit that performs an oscillation operation at an oscillating frequency that is in accordance with a control current value, and a control current generation unit that generates the control current. The control current generation unit includes a reference voltage generation circuit that generates a reference voltage that has a first temperature characteristic, a temperature characteristic slope correction circuit that corrects a slope of a temperature characteristic of a reference voltage in accordance with first correction information and generates an output voltage that has a second temperature characteristic, and a voltage-current conversion circuit that converts the output voltage of the temperature characteristic slope correction circuit into the control voltage, and that corrects the control current value in accordance with second correction information.
    Type: Application
    Filed: December 26, 2018
    Publication date: June 27, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Toshikazu KUWANO, Takahiro KIKUCHI, Sachiyuki ABE, Shuji KAWAGUCHI
  • Patent number: 10282318
    Abstract: An image processing apparatus includes a plurality of memories and a hardware processor which controls an execution operation of a first function including an image processing function and an execution operation of a second function including a server function, by using the plurality of memories. The hardware processor estimates a required bandwidth which is a memory bandwidth required for the execution operation of the first function on the basis of a current operation mode of the image processing apparatus among a plurality of operation modes of the image processing apparatus, and determines a bandwidth securing channel for first function which is a channel capable of being used for the execution operation of the first function and incapable of being used for the execution operation of the second function, out of a plurality of channels used to access the plurality of memories, on the basis of the required bandwidth.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: May 7, 2019
    Assignee: Konica Minolta, Inc.
    Inventors: Kenichi Takahashi, Kaitaku Ozawa, Masao Hosono, Tomoaki Nakajima, Toshikazu Kawaguchi, Daisuke Nakano
  • Patent number: 10261007
    Abstract: Disclosed herein are a microchip provided with a titanium oxide film between a glass substrate and a metal thin film; and a method for forming the metal thin film and the titanium oxide film on the glass substrate of the microchip. The microchip has a second microchip substrate that has the metal thin film inside a channel, and the titanium oxide film, which has a low extinction coefficient, is provided as a buffer layer between the substrate and the metal thin film such as a gold film.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: April 16, 2019
    Assignee: USHIO DENKI KABUSHIKI KAISHA
    Inventors: Kinichi Morita, Toshikazu Kawaguchi
  • Patent number: 10171691
    Abstract: A document generation system which generates, from a first document in which a plurality of text groups constituted by a plurality of lines arranged in a first direction is arranged in a second direction different from the first direction, a second document includes: a ranking unit configured to rank each of the plurality of text groups according to an order in which a person reads the first document; and a generating unit configured to generate, as the second document, a document in which each of the plurality of text groups is arranged one by one in the first direction in ascending order ranked by the ranking unit.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: January 1, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hisashi Uchida, Kazumi Sawayanagi, Hidetaka Iwai, Yosuke Taniguchi, Toshikazu Kawaguchi, Toshihiko Otake, Hideaki Soejima