Patents by Inventor Kenji Takeuchi

Kenji Takeuchi 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: 10386764
    Abstract: To switch between four nip modes, a cam is driven by a single drive to move between first to fourth positions. At the first position, a first nip between a first pressing body and a fixing member has a first width, and a second nip between a second pressing body and the fixing member has a second width. At the second position, the first nip has a third width smaller than the first width, and the second nip has a width greater than or equal to the second width. At the third position, the first nip has a width greater than or equal to the first width, and the second nip has a fourth width smaller than the second width. At the fourth position, the first nip has a fifth width smaller than the first width, and the second nip has a sixth width smaller than the second width.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: August 20, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Masahito Kajita, Kenji Takeuchi, Hisashi Tsukawaki
  • Patent number: 10379469
    Abstract: A fixing apparatus includes: first and second pressure members each of which is in contact with an inner circumferential surface of an endless belt and nips the endless belt between itself and a cylindrical member; a frame supporting the first and second pressure members; an actuator that moves the first pressure member between a first position and a second position in a movement direction of a portion, of the endless belt, positioned between the first and second pressure members; and an elastic body that generates nipping force to nip the endless belt. The nipping force by the elastic body is generated between the cylindrical member and the first and second pressure members, both in a case that the first pressure member is positioned in the first position and a case that the first pressure member is positioned in the second position.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: August 13, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kenji Takeuchi, Masahito Kajita
  • Publication number: 20190246039
    Abstract: An image stabilization apparatus includes a shake detector configured to detect an image blur, a generation unit configured to generate a first shake correction signal and a second shake correction signal based on a shake signal corresponding to a detection result from the shake detector, the generation unit extracting a low-frequency band signal from the shake signal, changing an amplitude of the extracted low-frequency band signal to generate the first shake correction signal, and generating the second shake correction signal based on the change in the amplitude and the shake signal, a first shake correction unit configured to correct the image blur based on the first shake correction signal, and a transmission unit configured to transmit the second shake correction signal to a second image stabilization apparatus.
    Type: Application
    Filed: February 4, 2019
    Publication date: August 8, 2019
    Inventor: Kenji Takeuchi
  • Patent number: 10364166
    Abstract: An UV-irradiation apparatus of an embodiment is provided with an irradiation unit, a measuring unit, a detecting unit, a calculator and a display. The irradiation unit irradiates treatment water as a treatment target with treating ultraviolet rays. The measuring unit measures ultraviolet ray intensity of ultraviolet rays transmitted through the treatment water. The detecting unit detects a deterioration of the irradiation unit in accordance with the ultraviolet ray intensity measured by the measuring unit. The calculator calculates the ultraviolet ray permeability of the treatment water, on the basis of the ultraviolet ray intensity of ultraviolet rays emitted from the irradiation unit depending on a preset setting value and the ultraviolet ray intensity measured by the measuring unit. The display displays the detection result of the deterioration of the irradiation unit by the detecting unit, and the ultraviolet ray permeability calculated by the calculator.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: July 30, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shinji Kobayashi, Norimitsu Abe, Takeshi Ide, Akihiko Shirota, Kenji Takeuchi
  • Publication number: 20190227469
    Abstract: A fuser is described including a heater, a belt, a rotating member, and a pad. A nip portion is formed between the belt and the rotating member as the pad presses the belt toward the rotating member. The pad is biased toward a restricting member. The biasing may be performed by one or more springs. The spring may be a compression spring, a tension spring, and/or a plate spring among other types of springs.
    Type: Application
    Filed: January 23, 2019
    Publication date: July 25, 2019
    Inventors: Masahito Kajita, Shuhei Fukue, Kenji Takeuchi, Zhang Mingguang, Tomonori Watanabe
  • Publication number: 20190222760
    Abstract: An image blur correction device detects a hand shake or the like using a shake detection unit and corrects image blur on the basis of a shake detection signal. An offset estimation unit estimates an offset component of an output of the shake detection unit. A noise term calculation unit separates an amount of shake detected by the shake detection unit into bands using a filter to calculate an amount of high frequency shake and an amount of low frequency shake. The noise term calculation unit performs control for changing characteristics of the offset estimation unit to delay updating of an offset estimation value as the amount of high frequency shake becomes larger and changing the characteristics of the offset estimation unit to advance the updating of the offset estimation value as the amount of low frequency shake becomes larger.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 18, 2019
    Inventor: Kenji Takeuchi
  • Publication number: 20190201247
    Abstract: A device for manufacturing an absorbent body includes: a shaping unit that includes a recessed portion and that makes liquid absorbent fiber and superabsorbent polymer to be deposited in the recessed portion, shaping the absorbent body; and a supply unit that supplies the liquid absorbent fiber and the superabsorbent polymer to the recessed portion. The recessed portion includes a protruding portion, and the protruding portion protrudes from a bottom surface and includes an inclined surface. In a cross section orthogonal to a ridge line of the protruding portion, an angle of the inclined surface with respect to a surface parallel to the bottom surface is greater than an angle of repose of the superabsorbent polymer and smaller than 90 degrees.
    Type: Application
    Filed: August 31, 2016
    Publication date: July 4, 2019
    Inventors: Atsushi TSUKUDA, Yukihisa AKANO, Kenji TAKEUCHI
  • Patent number: 10240855
    Abstract: In an insulator including an adsorbent configured to adsorb gas, an initial adsorption performance of the remaining gas inside the insulator using the adsorbent and a long-term adsorption performance of gas introduced into the insulator from the outside are improved so that the short-term performance and the long-term performance of the insulator can be simultaneously improved. An adsorbent that is a first part of an adsorbent included in a vacuum insulator is accommodated in a first space formed with an inside surface of a container, and an adsorbent that is a second part of the adsorbent is dispersed into a second space formed with an inside surface of an outer envelope and an outside surface of the container.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: March 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Toshimitsu Tsuruga, Kenji Takeuchi, Tomokazu Fukuzaki
  • Publication number: 20190052811
    Abstract: In an imaging apparatus, a first motion vector detector calculates a first motion vector on the basis of images with a low spatial resolution and a second motion vector detector calculates a second motion vector on the basis of images with a high spatial resolution. A first control amount having a great weight for information with a low frequency resolution with respect to frequency components of the first motion vector information and a second control amount having a great weight for information with a high frequency resolution with respect to frequency components of the second motion vector information are calculated. A third control amount is calculated through multiplication by a predetermined weight regardless of the frequency resolution with respect to frequency components of the first or second motion vector information. Drive control of an image blur correction lens is performed according to the first to third control amounts.
    Type: Application
    Filed: August 10, 2018
    Publication date: February 14, 2019
    Inventor: Kenji Takeuchi
  • Publication number: 20190045126
    Abstract: An image pick-up apparatus detects shake and the like applied to an image pick-up apparatus by a vibration sensor. A motion vector detection unit detects a motion vector of an image in an image signal by an imaging unit. A feature point tracking unit calculates coordinate values of a subject on an imaging screen that changes over time on the basis of the motion vector. A feature coordinate map and a position and attitude estimation unit estimates a position and attitude of the image pick-up apparatus and a positional relationship including a depth between the subject and the image pick-up apparatus based on an output of the vibration sensor and the coordinate values of the subject. A computation unit calculates a control amount of image blur correction using feature points of a main subject, a feature coordinate map and position or attitude information of the image pick-up apparatus.
    Type: Application
    Filed: July 11, 2018
    Publication date: February 7, 2019
    Inventor: Kenji Takeuchi
  • Publication number: 20190045127
    Abstract: A vibration sensor of an image pick-up apparatus detects shake of an image pick-up apparatus and acquires shake information. An imaging unit outputs an image signal of a subject to an imaging signal processing unit. A motion vector detection unit calculates a motion vector according to an image signal after imaging. A feature point tracking unit performs feature point tracking by calculating a coordinate value of a subject on a photographing screen using the motion vector. A feature coordinate map and position and attitude estimation unit estimates a position or attitude of the image pick-up apparatus on the basis of information obtained by a band limit filter performing band limitation on shake information from a vibration sensor and an output of the feature point tracking unit.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 7, 2019
    Inventor: Kenji Takeuchi
  • Patent number: 10137658
    Abstract: Provided is a vacuum insulator having both an excellent insulating performance and an excellent bending strength. A vacuum insulator (1) is configured by a sack-shaped enveloping member (3) and at least one sheet (7) including a plurality of inorganic fibers and includes a core member (5) enclosed in the enveloping member (3). The sheet (7) includes a plurality of bundled inorganic fibers (9) formed by bundling some inorganic fibers from among the plurality of inorganic fibers. At least a part of the bundled inorganic fibers (9) are in contact with each other.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: November 27, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Toshimitsu Tsuruga, Kentaro Kan, Kenji Takeuchi
  • Patent number: 10092458
    Abstract: An absorbent article is provided with a central elastic material for positioning in a state in which it is extended in the front/rear direction in the outer direction in relation to an absorbent body, and an elastic material cover sheet which abuts the outer direction side surface of the central elastic material. The elastic material cover sheet covers an extension region where the central elastic material is positioned in an extended state, and a non-extension region where the central elastic material is positioned in a non-extended state. An adhesive agent for fixing in the extended state is coated onto the central elastic material of the extension region. An adhesive agent is coated onto at least the non-extension region of the outer direction side surface of the elastic material cover sheet, and the adhesive agent coated onto the outer direction side surface penetrates to the inner direction side surface of the elastic material cover sheet.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: October 9, 2018
    Assignee: UNICHARM CORPORATION
    Inventors: Hirotomo Mukai, Kenji Takeuchi, Takaya Arayama
  • Publication number: 20180284662
    Abstract: A fixing apparatus includes: first and second pressure members each of which is in contact with an inner circumferential surface of an endless belt and nips the endless belt between itself and a cylindrical member; a frame supporting the first and second pressure members; an actuator that moves the first pressure member between a first position and a second position in a movement direction of a portion, of the endless belt, positioned between the first and second pressure members; and an elastic body that generates nipping force to nip the endless belt. The nipping force by the elastic body is generated between the cylindrical member and the first and second pressure members, both in a case that the first pressure member is positioned in the first position and a case that the first pressure member is positioned in the second position.
    Type: Application
    Filed: March 21, 2018
    Publication date: October 4, 2018
    Inventors: Kenji Takeuchi, Masahito Kajita
  • Publication number: 20180284666
    Abstract: There is provided a fuser including: a cylindrical member; an endless belt; a pressing member; a pressing roller; and a lateral guide contacting a lateral end of the endless belt. A part of an outer circumferential surface of the pressing roller is located on a downstream of the second nip area in a first direction. A guide surface of the lateral guide has: a first guide surface located on an opposite side to the pressing roller with respect to a virtual plane including the center of a first nip area and the center of rotation of the cylindrical member, and a second guide surface located on a side of the pressing roller with respect to the virtual plane, located on the downstream side of the rotation axis of the pressing roller in the first direction, and arranged on a same plane as the first guide surface.
    Type: Application
    Filed: March 23, 2018
    Publication date: October 4, 2018
    Inventors: Yasumasa Fujii, Tokifumi Tanaka, Hirofumi Kuriki, Masahito Kajita, Kenji Takeuchi, Hiroshi Handa
  • Patent number: 10088787
    Abstract: A fixing device includes a first pressure structure, a second pressure structure, a fixing member, a first arm, a second arm, and an elastic member. The fixing member is disposed between the first and second pressure structures. The first arm is pivotable about a first shaft and includes a first pressing portion and a first connection portion. The second arm is pivotable about a second shaft and includes a second pressing portion and a second connection portion. The elastic member biases the first and second pressing portions toward each other. A first leverage ratio of a distance between the first shaft and the first connection portion to a distance between the first shaft and the first pressing portion is different from a second leverage ratio of a distance between the second shaft and the second connection portion to a distance between the second shaft and the second pressing portion.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: October 2, 2018
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Kenji Takeuchi
  • Publication number: 20180267448
    Abstract: To switch between four nip modes, a cam is driven by a single drive to move between first to fourth positions. At the first position, a first nip between a first pressing body and a fixing member has a first width, and a second nip between a second pressing body and the fixing member has a second width. At the second position, the first nip has a third width smaller than the first width, and the second nip has a width greater than or equal to the second width. At the third position, the first nip has a width greater than or equal to the first width, and the second nip has a fourth width smaller than the second width. At the fourth position, the first nip has a fifth width smaller than the first width, and the second nip has a sixth width smaller than the second width.
    Type: Application
    Filed: March 5, 2018
    Publication date: September 20, 2018
    Inventors: Masahito Kajita, Kenji Takeuchi, Hisashi Tsukawaki
  • Publication number: 20180259889
    Abstract: A fixing device includes a first pressure structure, a second pressure structure, a fixing member, a first arm, a second arm, and an elastic member. The fixing member is disposed between the first and second pressure structures. The first arm is pivotable about a first shaft and includes a first pressing portion and a first connection portion. The second arm is pivotable about a second shaft and includes a second pressing portion and a second connection portion. The elastic member biases the first and second pressing portions toward each other. A first leverage ratio of a distance between the first shaft and the first connection portion to a distance between the first shaft and the first pressing portion is different from a second leverage ratio of a distance between the second shaft and the second connection portion to a distance between the second shaft and the second pressing portion.
    Type: Application
    Filed: February 26, 2018
    Publication date: September 13, 2018
    Inventor: Kenji Takeuchi
  • Publication number: 20180224495
    Abstract: There are provided an electric-current sensing device capable of detecting an electric current with high accuracy, a load driving system, and a method for manufacturing the electric-current sensing device. According to one embodiment, the electric-current sensing device includes a sense IGBT through which an electric current proportional to an electric current flowing through a main IGBT flows. Further, a depth of a P type floating region from a lower end of each of a plurality of trench gates provided in the sense IGBT is shallower than a depth of another P type floating region from a lower end of each of a plurality of trench gates provided in the main IGBT.
    Type: Application
    Filed: December 6, 2017
    Publication date: August 9, 2018
    Inventor: Kenji TAKEUCHI
  • Publication number: 20180170757
    Abstract: A low-resistivity carbon nanotube aggregate includes a plurality of carbon nanotubes each having one or more walls, wherein a ratio of a total number of carbon nanotubes that have two or three walls relative to a total number of said plurality of carbon nanotubes is 75% or greater, and wherein, in a G band of a Raman spectrum in the Raman spectroscopy of the plurality of carbon nanotubes, a G+/Gtotal ratio that is indicative of an amount of semiconductor carbon nanotubes relative to metallic carbon nanotubes is 0.70 or greater.
    Type: Application
    Filed: February 13, 2018
    Publication date: June 21, 2018
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Masashige WATANABE, Hideki AIZAWA, Kazutomi MIYOSHI, Satoshi YAMASHITA, Yoshinori KAZAMA, Yuudai TANIMURA, Koji FUJIMURA, Morinobu ENDO, Kenji TAKEUCHI, Masatsugu FUJISHIGE