Patents by Inventor Kyohei Kato

Kyohei Kato 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).

  • Publication number: 20220142732
    Abstract: A dental treatment apparatus includes: a handpiece including a head that holds a cutting tool; a drive unit capable of performing forward rotation driving for rotating the cutting tool held at the head in a cutting direction, and reverse rotation driving for rotating the cutting tool held at the head in a non-cutting direction; an operation receiving unit that receives an operation of an operator; and a controller that controls the drive unit that drives the cutting tool, according to the operation received by the operation receiving unit. Only when a prescribed condition is satisfied, the controller sets the operation received by the operation receiving unit as an operation to drive the cutting tool by reverse rotation driving, or as an operation to drive the cutting tool by twist driving by which the forward rotation driving and the reverse rotation driving are alternately performed.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 12, 2022
    Applicant: J. MORITA MFG. CORP.
    Inventors: Kyohei Kato, Kazunari Matoba
  • Patent number: 11293317
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall is composed of a material containing cordierite as a main component thereof, porosity of the partition wall measured by a mercury press-in method is 55 to 65%, an average pore diameter of the partition wall measured by a mercury press-in method is 5 to 10 ?m, and in a pore diameter distribution indicating a cumulative pore volume of the partition wall measured by a mercury press-in method, with a pore diameter (?m) on an abscissa axis and a log differential pore volume (cm3/g) on an ordinate axis, a first peak including a maximum value of the log differential pore volume has a pore diameter value of 8 ?m or less, the pore diameter value corresponding to a ? value width of the maximum value.
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: April 5, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Fumihiko Yoshioka, Nozomu Hirai, Kyohei Kato
  • Publication number: 20220087777
    Abstract: A dental treatment apparatus according to the present invention includes a drive unit that includes a micromotor, a motor driver, and the like, a controller, and a root canal length measurement circuit. The controller controls the cutting tool to be held at a head forward driven in a direction of cutting of an object to be cut. The controller also controls the cutting tool to be reverse driven in a direction reverse to forward rotation drive when the cutting tool is forward driven and the root canal length measurement circuit detects a tip end of the cutting tool reaching a reference position. The controller further carries out a fail-safe control when the cutting tool is reverse driven and the root canal length measurement circuit detects movement of the tip end of the cutting tool toward a root apex position.
    Type: Application
    Filed: January 8, 2020
    Publication date: March 24, 2022
    Applicant: J. MORITA MFG. CORP.
    Inventors: Kyohei Kato, Kazunari Matoba
  • Patent number: 11274588
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall is composed of a material containing cordierite as a main component thereof, porosity of the partition wall measured by a mercury press-in method is 60 to 68%, an average pore diameter of the partition wall measured by a mercury press-in method is 19 to 26 ?m, and in a pore diameter distribution indicating a cumulative pore volume of the partition wall measured by a mercury press-in method, with a pore diameter (?m) on an abscissa axis and a log differential pore volume (cm3/g) on an ordinate axis, a first peak including a maximum value of the log differential pore volume has a pore diameter value of 18 ?m or less, the pore diameter value corresponding to a ? value width of the maximum value.
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: March 15, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Fumihiko Yoshioka, Yuji Sasaki, Kimiko Kishine, Sachiko Ishida, Kyohei Kato
  • Publication number: 20210346880
    Abstract: A pillar shaped honeycomb structure, including: an outer peripheral wall; and a porous partition wall disposed inside the outer peripheral wall, the partition wall defining a plurality of cells, each of the cells extending from one end face to other end face to form a flow path, wherein the plurality of cells include two or more types of magnetic substances in which at least two of a maximum magnetic permeability, a Curie point, and an intrinsic resistance value are different.
    Type: Application
    Filed: July 21, 2021
    Publication date: November 11, 2021
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yukio MIYAIRI, Masaaki MASUDA, Kyohei KATO, Kazuya HOSODA, Takafumi KIMATA
  • Publication number: 20210324772
    Abstract: A pillar shaped honeycomb structure, including: an outer peripheral wall; and porous partition walls disposed inside the outer peripheral wall, the partition walls defining a plurality of cells, each of the cells penetrating from one end face to other end face to form a flow path, wherein one or both of the one end face and the other end face includes a groove portion; and wherein at least one annular conductive loop containing a conductive material is embedded in the groove portion.
    Type: Application
    Filed: June 28, 2021
    Publication date: October 21, 2021
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yukio MIYAIRI, Masaaki MASUDA, Kyohei KATO, Takafumi KIMATA, Kazuya HOSODA
  • Publication number: 20210293166
    Abstract: A pillar shaped honeycomb structure, including: a porous partition wall that define a plurality of cells, the plurality of cells forming flow paths for a fluid, the plurality of cells extending from an inflow end face to an outflow end face; and an outer peripheral wall located at the outermost circumference. The plurality of cells include: a plurality of first cells; and a plurality of second cells having a lower cross-sectional area than that of the plurality of first cells. An interior of each of the second cells is filled with a material comprising a magnetic substance. Each of the second cells are arranged adjacent to at least one of the first cells.
    Type: Application
    Filed: May 19, 2021
    Publication date: September 23, 2021
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yukio MIYAIRI, Masaaki MASUDA, Kyohei KATO, Norihiro WAKIDA
  • Publication number: 20210270163
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall is composed of a material containing cordierite as a main component thereof, porosity of the partition wall measured by a mercury press-in method is 55 to 65%, an average pore diameter of the partition wall measured by a mercury press-in method is 5 to 10 ?m, and in a pore diameter distribution indicating a cumulative pore volume of the partition wall measured by a mercury press-in method, with a pore diameter (?m) on an abscissa axis and a log differential pore volume (cm3/g) on an ordinate axis, a first peak including a maximum value of the log differential pore volume has a pore diameter value of 8 ?m or less, the pore diameter value corresponding to a ? value width of the maximum value.
    Type: Application
    Filed: January 18, 2021
    Publication date: September 2, 2021
    Applicant: NGK Insulators, Ltd.
    Inventors: Fumihiko YOSHIOKA, Nozomu HIRAI, Kyohei KATO
  • Publication number: 20210270172
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall is composed of a material containing cordierite as a main component thereof, porosity of the partition wall measured by a mercury press-in method is 60 to 68%, an average pore diameter of the partition wall measured by a mercury press-in method is 19 to 26 ?m, and in a pore diameter distribution indicating a cumulative pore volume of the partition wall measured by a mercury press-in method, with a pore diameter (?m) on an abscissa axis and a log differential pore volume (cm3/g) on an ordinate axis, a first peak including a maximum value of the log differential pore volume has a pore diameter value of 18 ?m or less, the pore diameter value corresponding to a ? value width of the maximum value.
    Type: Application
    Filed: January 18, 2021
    Publication date: September 2, 2021
    Applicant: NGK Insulators, Ltd.
    Inventors: Fumihiko YOSHIOKA, Yuji SASAKI, Kimiko KISHINE, Sachiko ISHIDA, Kyohei KATO
  • Publication number: 20210268423
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall is composed of a material containing cordierite as a main component thereof, porosity of the partition wall measured by a mercury press-in method is 60 to 68%, an average pore diameter of the partition wall measured by a mercury press-in method is 8 to 12 and in a pore diameter distribution which indicates a cumulative pore volume of the partition wall measured by a mercury press-in method, with a pore diameter (?m) on an abscissa axis and a log differential pore volume (cm3/g) on an ordinate axis, a first peak that includes a maximum value of the log differential pore volume has a pore diameter value of 10 ?m or less, the pore diameter value corresponding to a ? value width of the maximum value.
    Type: Application
    Filed: January 18, 2021
    Publication date: September 2, 2021
    Applicant: NGK Insulators, Ltd.
    Inventors: Fumihiko YOSHIOKA, Yuji SASAKI, Kimiko KISHINE, Sachiko ISHIDA, Kyohei KATO
  • Publication number: 20210268424
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall is composed of a material containing cordierite as a main component thereof, porosity of the partition wall measured by a mercury press-in method is 60 to 68%, an average pore diameter of the partition wall measured by a mercury press-in method is 13 to 18 ?m, and in a pore diameter distribution indicating a cumulative pore volume of the partition wall measured by a mercury press-in method, with a pore diameter (?m) on an abscissa axis and a log differential pore volume (cm3/g) on an ordinate axis, a first peak including a maximum value of the log differential pore volume has a pore diameter value of 15 ?m or less, the pore diameter value corresponding to a ? value width of the maximum value.
    Type: Application
    Filed: January 18, 2021
    Publication date: September 2, 2021
    Applicant: NGK Insulators, Ltd.
    Inventors: Fumihiko YOSHIOKA, Yuji SASAKI, Kimiko KISHINE, Sachiko ISHIDA, Kyohei KATO
  • Publication number: 20210225140
    Abstract: In a medical system, a medical device includes a first display that displays a figure or a character corresponding to data relevant to medical treatment performed in the medical device, and a first controller that causes the first display to display the figure or the character corresponding to the data and that, when the data satisfies conditions for notification of a warning, causes the medical device to emit a first warning. A remote control device includes a second display that displays the figure or the character corresponding to the data, and a second controller that causes the second display to display the figure or the character corresponding to the data and that, when the data satisfies the conditions for notification of the warning, causes the remote control device to emit a second warning that is different than the first warning.
    Type: Application
    Filed: January 14, 2021
    Publication date: July 22, 2021
    Inventors: Koichiro ADACHI, Seiichiro YAMASHITA, Kyohei KATO
  • Publication number: 20210219992
    Abstract: A root canal length measuring device includes a display for displaying a control mode figure indicating an execution control mode executed among a plurality of control modes and a control unit for controlling the display to display the figure. A plurality of elements for displaying the control mode figure include a shaft portion extending in an arc shape or a fan shape and a clockwise head portion and a counterclockwise head portion indicating a first direction and a second direction as rotation directions of a cutting tool, respectively. The control unit controls the display according to the execution control mode in a root canal treatment device so that, among the plurality of elements, an entirety or a part of the shaft portion and the clockwise head portion and/or the counterclockwise head portion are displayed on the display.
    Type: Application
    Filed: January 14, 2021
    Publication date: July 22, 2021
    Inventors: Seiichiro YAMASHITA, Kyohei KATO
  • Publication number: 20210115825
    Abstract: A pillar shaped honeycomb structure includes: a porous partition wall that defines a plurality of cells, the cells forming flow paths for a fluid, the cells extending from an inflow end face to an outflow end face; and an outer peripheral wall located at the outermost circumference. At least a part of surfaces of the partition walls has a surface layer, and the surface layer includes magnetic particles and has permeability.
    Type: Application
    Filed: December 29, 2020
    Publication date: April 22, 2021
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yukio MIYAIRI, Takehide SHIMODA, Takashi AOKI, Hirofumi SAKAMOTO, Masaaki MASUDA, Atsuo KONDO, Yunie IZUMI, Kyohei KATO, Norihiro WAKITA
  • Patent number: 10813717
    Abstract: In a dental treatment apparatus, a control circuit controls a drive motor in accordance with a drive sequence. The drive sequence includes a plurality of drive patterns and at least one of the plurality of drive patterns is different from other drive pattern. The plurality of drive patterns include at least one drive pattern having such drive that a cutting tool is rotated in a cutting direction for cutting a treatment portion and drive for rotating the cutting tool in a non-cutting direction which is reverse to the cutting direction.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: October 27, 2020
    Assignee: J. MORITA MFG. CORP.
    Inventors: Kyohei Kato, Tomoaki Ueda, Seiichiro Yamashita, Kazunari Matoba
  • Publication number: 20200155269
    Abstract: A root canal treatment instrument 100 continues drive of a cutting tool 5 in forward rotation drive until reaching 180 degrees, and when a load applied to the cutting tool 5 is equal to or greater than a reference load, drive of the cutting tool 5 is switched to reverse rotation drive until reaching 90 degrees. In the root canal treatment instrument 100, when a cumulative amount of rotation is equal to or greater than a reference amount of rotation, change to a drive pattern is made, forward rotation drive is continued until reaching 90 degrees, and when a load applied to the cutting tool 5 is equal to or greater than the reference load, drive of the cutting tool 5 is switched to reverse rotation drive until reaching 180 degrees.
    Type: Application
    Filed: October 10, 2019
    Publication date: May 21, 2020
    Applicant: J. MORITA MFG. CORP.
    Inventors: Kazunari Matoba, Kyohei Kato
  • Publication number: 20200155273
    Abstract: A dental treatment apparatus includes a handpiece holding a cutting tool in its head, a drive portion driving the cutting tool held by the head, and a control portion controlling the drive portion in accordance with a drive sequence. The drive sequence includes at least one forward rotation drive for rotating the cutting tool in a cutting direction to cut a treatment portion and at least one reverse rotation drive for rotating the cutting tool in a non-cutting direction. Under the control of the drive portion in accordance with the drive sequence, a cumulative amount of rotation which is an accumulation of an amount of rotation in forward rotation drive and an amount of rotation in reverse rotation drive does not exceed a set value at any time point.
    Type: Application
    Filed: August 9, 2018
    Publication date: May 21, 2020
    Applicant: J. MORITA MFG. CORP.
    Inventors: Kyohei Kato, Naoki Katsuda, Kazunari Matoba
  • Publication number: 20190380813
    Abstract: The A root canal treatment apparatus includes: a handpiece configured to hold a cutting tool in a head in a drivable manner; a motor driver and a micromotor configured to drive the cutting tool; a root canal length measurement circuit; and a control portion. The root canal length measurement circuit is configured to electrically detect a position of a tip end of the cutting tool in a root canal, using the cutting tool as a measuring electrode. The control portion is configured to perform drive for reversely rotating the cutting tool by a predetermined set angle (180 degrees) when the position of the tip end of the cutting tool detected by the root canal length measurement circuit reaches a predetermined set position, and then, stopping rotation.
    Type: Application
    Filed: March 8, 2018
    Publication date: December 19, 2019
    Applicant: J. MORITA MFG. CORP.
    Inventors: Kyohei Kato, Naoki Katsuda, Seiichiro Yamashita, Kazunari Matoba
  • Publication number: 20170265961
    Abstract: In a dental treatment apparatus, a control circuit controls a drive motor in accordance with a drive sequence. The drive sequence includes a plurality of drive patterns and at least one of the plurality of drive patterns is different from other drive pattern. The plurality of drive patterns include at least one drive pattern having such drive that a cutting tool is rotated in a cutting direction for cutting a treatment portion and drive for rotating the cutting tool in a non-cutting direction which is reverse to the cutting direction.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 21, 2017
    Applicant: J. MORITA MFG. CORP.
    Inventors: Kyohei Kato, Tomoaki Ueda, Seiichiro Yamashita, Kazunari Matoba