Patents by Inventor Kazuto Shibuya

Kazuto Shibuya 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: 20240160129
    Abstract: A fixing device includes a belt, a pad, a pressure rotator, a lubricant supplier, and a collector. The belt forms a loop. The pad is inside the loop of the belt and contacts the belt. The pressure rotator presses the belt against the pad to form a fixing nip between the belt and the pressure rotator. The lubricant supplier supplies lubricant to an inner face of the belt. The collector collects the lubricant. The collector has a first end and a second end. The first end contacts an inner face of one end of the belt in a width direction of the belt. The second end contacts the inner face of another end of the belt opposite to the one end in the width direction.
    Type: Application
    Filed: November 9, 2023
    Publication date: May 16, 2024
    Inventors: Shuntaroh IWAMI, Jun OGINO, Kazuto SHIBUYA
  • Publication number: 20240160138
    Abstract: A fixing device includes a belt, a nip formation pad, and a pressure rotator. The belt has a loop rotatable in a sheet conveyance direction. The nip formation pad is inside the loop and includes three curved portions in the sheet conveyance direction. The three curved portions form a nip formation face. The pressure rotator presses the belt against the nip formation pad to form a fixing nip between the belt and the pressure rotator.
    Type: Application
    Filed: November 7, 2023
    Publication date: May 16, 2024
    Inventor: Kazuto SHIBUYA
  • Publication number: 20230091835
    Abstract: A coil component includes a core including a core body, first and second flanges at first and second ends, respectively, of the body; first and second outer electrodes on the first and second flanges, respectively; and a wire wound around the body and electrically connected to the electrodes. The body has a peripheral face extending in a peripheral direction about an axis of the body. In a section containing the axis, a distance between at least a part of the face and the axis is smaller on a side near a center of the body in a direction of the axis than on a side near each of the first and second ends while a distance between the wire and the axis is smaller on the side near the center in the direction of the axis than on the side near each of the first and second ends.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 23, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Masaya TANIGUCHI, Yuki KANBE, Osamu MONGUCHI, Kazuto SHIBUYA, Shinya HIRAI
  • Patent number: 11492223
    Abstract: A sheet conveying device includes a support configured to move between a storage position and a full open position and including a pair of rollers, a plurality of contact bodies, and a switching unit. The switching unit switches the pair of rollers in response to contact of the plurality of contact target bodies included in the switching unit, with the plurality of contact bodies. The plurality of contact bodies includes a first contact body closer to the storage position than the plurality of contact target bodies with the support at the full open position and closer to the full open position with the support at the storage position, and a second contact body closer to the storage position than a part of the plurality of contact target bodies with the support at a halfway position and closer to the full open position with the support at the storage position.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: November 8, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yuji Kawamata, Kazuto Shibuya
  • Publication number: 20220130597
    Abstract: A coil component includes a core that has a columnar winding core portion and a flange formed at an end of the winding core portion in an axial direction. The coil component also includes a terminal electrode formed at an end surface of the flange and a wire being wound around the winding core portion with one end portion coupled to the terminal electrode. The flange protrudes toward the first end of the coil component in the first direction. A curved surface and an inclined surface are formed at a boundary between a surface of the flange and a peripheral surface of the winding core portion. The inclined surface has a curvature smaller than that of the curved surface. In addition, the inclined surface is disposed where the wire intersects the boundary as viewed in the first direction.
    Type: Application
    Filed: October 12, 2021
    Publication date: April 28, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Tomoyuki WADA, Kazuto SHIBUYA, Seiya YUKI, Yuki KANBE
  • Publication number: 20220102063
    Abstract: A coil component includes a core having a winding core portion and one pair of guard portions, a terminal electrode provided on each guard portion, and a wire wound around the winding core portion and having both ends electrically connected to the terminal electrodes. Each guard portion has an inner end face, an outer end face, a bottom surface, a top surface, and two side surfaces. Each terminal electrode has a bottom surface electrode portion continuous over at least the bottom surface and an outer end face electrode portion on the outer end face. The bottom surface electrode portion has a side surface extension portion located lower than a lowest portion of the winding core portion. The outer end face electrode portion is connected to the bottom surface electrode portion, and both end edges of the outer end face electrode portion are located away from both the side surfaces.
    Type: Application
    Filed: September 8, 2021
    Publication date: March 31, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yuki KANBE, Tomoyuki WADA, Kazuto SHIBUYA, Seiya YUKI
  • Patent number: 10867737
    Abstract: A side surface of a flange part includes a central region having a straight surface and an outside region having an outside sloped surface. In the outside region, a ridge portion at which the outside sloped surface and an outside end surface are in contact with each other is chamfered into a first outside R surface. As a result, even when a swollen shape portion is formed at a location beyond the first outside R surface, the location where the swollen shape portion is formed is on the outside sloped surface, which is recessed from the straight surface toward the inside of the flange part. Thus, it is possible to reduce the degree and the probability of protruding of the swollen shape portion.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: December 15, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Kazuto Shibuya
  • Publication number: 20200231397
    Abstract: A sheet conveying device includes a support configured to move between a storage position and a full open position and including a pair of rollers, a plurality of contact bodies, and a switching unit. The switching unit switches the pair of rollers in response to contact of the plurality of contact target bodies included in the switching unit, with the plurality of contact bodies. The plurality of contact bodies includes a first contact body closer to the storage position than the plurality of contact target bodies with the support at the full open position and closer to the full open position with the support at the storage position, and a second contact body closer to the storage position than a part of the plurality of contact target bodies with the support at a halfway position and closer to the full open position with the support at the storage position.
    Type: Application
    Filed: January 9, 2020
    Publication date: July 23, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Yuji KAWAMATA, Kazuto SHIBUYA
  • Publication number: 20190080835
    Abstract: A side surface of a flange part includes a central region having a straight surface and an outside region having an outside sloped surface. In the outside region, a ridge portion at which the outside sloped surface and an outside end surface are in contact with each other is chamfered into a first outside R surface. As a result, even when a swollen shape portion is formed at a location beyond the first outside R surface, the location where the swollen shape portion is formed is on the outside sloped surface, which is recessed from the straight surface toward the inside of the flange part. Thus, it is possible to reduce the degree and the probability of protruding of the swollen shape portion.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 14, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Kazuto SHIBUYA
  • Publication number: 20110220017
    Abstract: An image forming apparatus includes an image forming unit for forming an image on a medium; and an application device for applying a treatment liquid to the medium. The application device includes a conveying roller; an application roller for applying the liquid; a squeeze roller for reducing the thickness of the liquid on the application roller; and a tray for supplying the liquid to the squeeze roller. In the application operation, the application and squeeze rollers come in contact, and a valley formed by these rollers faces upward. In the standby condition, at least one of the application and squeeze rollers is moved to such a position that the valley faces laterally. The tray always covers the lower side of the application and squeeze rollers in regions near the longitudinal end portions of the application roller, which end portions do not come in contact with the conveying roller.
    Type: Application
    Filed: March 11, 2011
    Publication date: September 15, 2011
    Applicant: RICOH COMPANY, LTD
    Inventors: Satoshi KITAOKA, Kazuyoshi Matsumoto, Shinji Imoto, Kazuto Shibuya