Patents by Inventor HIROAKI TAKAI

HIROAKI TAKAI 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: 20240150098
    Abstract: The disclosure provides a laminate having excellent flexibility and substrate conformability and favorable adhesive strength in a structure having an adhesive layer using a solvent-free adhesive in contact with an ink layer using a water-based flexo ink. The disclosure provides a package using the laminate and having excellent substrate conformability and adhesive strength. The above object is achieved by a laminate having a first substrate layer, an ink layer, an adhesive layer, and a second substrate layer in order, and satisfying the following (1) to (2): (1) the ink layer is a layer formed using a water-based flexo ink (F). (2) the adhesive layer is a layer formed using a solvent-free adhesive (S) containing a polyol (A) and a polyisocyanate (B), and has a storage elastic modulus (Er) of 600 MPa or less at 20° C. measured based on JIS K 7244.
    Type: Application
    Filed: November 5, 2023
    Publication date: May 9, 2024
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYO-MORTON, LTD.
    Inventors: Hiroki NODA, Hiroaki TAKAI, Michihisa KOFUJI
  • Patent number: 11929771
    Abstract: A transmission system includes: an antenna; a control device including an RF circuit which transmits a first signal for controlling a radio wave to be outputted from the antenna and an external power supply which supplies direct current to the antenna; and a first transmission path which connects the antenna and the control device, and is used in transmission of the first signal and supplying of the direct current to the antenna.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: March 12, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi Kaga, Toshihiro Nagayama, Hiroaki Kobayashi, Yasunori Komukai, Shinichi Okada, Yasumichi Takai, Yoshinori Hiramatsu
  • Patent number: 11760595
    Abstract: A sheet feeding device includes a sheet feeding roller, a following roller, a rotational speed detection part, and a control part. The rotational speed detection part is configured to detect a rotational speed of the following roller. The control part is configured to accelerate a rotation of the sheet feeding roller and to adjust a sheet interval. The control part obtains a rotational rate of the following roller to the sheet feeding roller based on the rotational speed of the following roller, obtains an actual linear velocity of the sheet based on the rotational rate of the following roller and a theoretical linear velocity of the sheet after accelerating the rotation of the sheet feeding roller, and then adjusts the sheet interval based on the actual linear velocity of the sheet.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: September 19, 2023
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Yuichiro Tanaka, Hiroaki Takai
  • Publication number: 20230037483
    Abstract: An aluminum alloy includes more than or equal to 1.0 mass% and less than or equal to 1.8 mass% of Si, more than or equal to 0.5 mass% and less than or equal to 1.2 mass% of Mg, more than or equal to 0.3 mass% and less than or equal to 0.8 mass% of Fe, more than or equal to 0.1 mass% and less than or equal to 0.4 mass% of Cu, more than or equal to 0.2 mass% and less than or equal to 0.5 mass% of Mn, more than or equal to 0 mass% and less than or equal to 0.3 mass% of Cr, at least one of more than or equal to 0.005 mass% and less than or equal to 0.6 mass% of Ni and more than or equal to 0.005 mass% and less than or equal to 0.6 mass% of Sn, Al, and an inevitable impurity.
    Type: Application
    Filed: January 21, 2021
    Publication date: February 9, 2023
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC TOYAMA CO., LTD.
    Inventors: Ryota MATSUGI, Isao IWAYAMA, Tsukasa MATSUO, Hiroaki TAKAI
  • Patent number: 11507014
    Abstract: A development device is attachable to and detachable from an apparatus main body in an inserting/drawing direction. The development device includes a holder portion, a hook, a lever portion, and an elastic arm portion. The holder portion supports a board connectable to a controller of the apparatus main body. The hook is engageable with a recess of the apparatus main body. The lever portion is provided with the hook. At least one elastic arm portion connects the holder portion and the lever portion. In a middle of an attachment to the apparatus main body, the hook interferes with the apparatus main body to shift the lever portion in a direction crossing the inserting/drawing direction and to elastically deform the elastic arm portion. When the hook is engaged with the recess, the elastic deformation of the elastic arm portion is released and the board is connected to the controller.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: November 22, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hiroaki Takai
  • Patent number: 11314194
    Abstract: A lighting device includes a light source, a light guide, a light guide cover, and a unit frame. The light guide is in a bar form and, while guiding light that has entered from the light source along the axial direction, sends forth the light. The light guide cover holds the light guide. The light guide cover is attached to a unit frame. The light guide cover includes a main body portion and a plurality of light guide holding portions provided along the longitudinal direction of the main body portion and holding the light guide at a plurality of places, and a plurality of guide engaging portions provided along the longitudinal direction of the main body portion. The unit frame has a cover fitting face to which the light guide cover is fitted and a plurality of cover guides with which a plurality of guide engaging portions engage respectively.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: April 26, 2022
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Masahiro Ueno, Hiroaki Ohashi, Hirofumi Tsuji, Hiroaki Takai, Yasutaka Hashimoto, Tomoyasu Yamada
  • Publication number: 20220100144
    Abstract: A development device is attachable to and detachable from an apparatus main body in an inserting/drawing direction. The development device includes a holder portion, a hook, a lever portion, and an elastic arm portion. The holder portion supports a board connectable to a controller of the apparatus main body. The hook is engageable with a recess of the apparatus main body. The lever portion is provided with the hook. At least one elastic arm portion connects the holder portion and the lever portion. In a middle of an attachment to the apparatus main body, the hook interferes with the apparatus main body to shift the lever portion in a direction crossing the inserting/drawing direction and to elastically deform the elastic arm portion. When the hook is engaged with the recess, the elastic deformation of the elastic arm portion is released and the board is connected to the controller.
    Type: Application
    Filed: September 29, 2021
    Publication date: March 31, 2022
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Hiroaki TAKAI
  • Publication number: 20220026831
    Abstract: A developing device includes a developing container, a bearing, a stirring transport member, and a seal member. The bearing is inserted and fixed to a through hole provided to the developing container. The bearing includes a bearing side engaging part formed on outer periphery surface of the bearing to have outer diameter different from that of other part in the axial direction of the bearing, a first outer periphery part positioned inside the bearing side engaging part in the axial direction, and a second outer periphery part positioned outside the same in the axial direction. A container side engaging part engaging with the bearing side engaging part is formed on inner periphery surface of the through hole at the same position in the axial direction as the bearing side engaging part, to have inner diameter different from that of other part in the axial direction of the through hole.
    Type: Application
    Filed: July 15, 2021
    Publication date: January 27, 2022
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Hiroaki TAKAI
  • Patent number: 11231666
    Abstract: A developing device includes a developing container, a bearing, a stirring transport member, and a seal member. The bearing is inserted and fixed to a through hole provided to the developing container. The bearing includes a bearing side engaging part formed on outer periphery surface of the bearing to have outer diameter different from that of other part in the axial direction of the bearing, a first outer periphery part positioned inside the bearing side engaging part in the axial direction, and a second outer periphery part positioned outside the same in the axial direction. A container side engaging part engaging with the bearing side engaging part is formed on inner periphery surface of the through hole at the same position in the axial direction as the bearing side engaging part, to have inner diameter different from that of other part in the axial direction of the through hole.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: January 25, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hiroaki Takai
  • Publication number: 20210395029
    Abstract: A sheet feeding device includes a sheet feeding roller, a following roller, a rotational speed detection part, and a control part. The rotational speed detection part is configured to detect a rotational speed of the following roller. The control part is configured to accelerate a rotation of the sheet feeding roller and to adjust a sheet interval. The control part obtains a rotational rate of the following roller to the sheet feeding roller based on the rotational speed of the following roller, obtains an actual linear velocity of the sheet based on the rotational rate of the following roller and a theoretical linear velocity of the sheet after accelerating the rotation of the sheet feeding roller, and then adjusts the sheet interval based on the actual linear velocity of the sheet.
    Type: Application
    Filed: June 15, 2021
    Publication date: December 23, 2021
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Yuichiro TANAKA, Hiroaki TAKAI
  • Patent number: 10990031
    Abstract: A developing device includes an agitating member, a magnetic roller, a lower housing, an upper housing and a blade member. The lower housing includes a first housing part including a first edge having a first contact face and a first facing surface at a blade member's side. The upper housing includes a second housing part including a second edge having a second contact face contact with the first contact face and a second facing surface facing to the first facing surface. The blade member is attached to the upper housing and arranged at a gap to the lower housing. Between the first and second facing surfaces, a width at a blade member's side is broader than a width at a first contact face's side. The first and second facing surfaces are bonded by an adhesive agent. The gap is sealed by the adhesive agent.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: April 27, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hiroaki Takai
  • Publication number: 20210041825
    Abstract: A lighting device includes a light source, a light guide, a light guide cover, and a unit frame. The light guide is in a bar form and, while guiding light that has entered from the light source along the axial direction, sends forth the light. The light guide cover holds the light guide. The light guide cover is attached to a unit frame. The light guide cover includes a main body portion and a plurality of light guide holding portions provided along the longitudinal direction of the main body portion and holding the light guide at a plurality of places, and a plurality of guide engaging portions provided along the longitudinal direction of the main body portion. The unit frame has a cover fitting face to which the light guide cover is fitted and a plurality of cover guides with which a plurality of guide engaging portions engage respectively.
    Type: Application
    Filed: August 4, 2020
    Publication date: February 11, 2021
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Masahiro UENO, Hiroaki OHASHI, Hirofumi TSUJI, Hiroaki TAKAI, Yasutaka HASHIMOTO, Tomoyasu YAMADA
  • Publication number: 20210011396
    Abstract: A developing device includes an agitating member, a magnetic roller, a lower housing, an upper housing and a blade member. The lower housing includes a first housing part including a first edge having a first contact face and a first facing surface at a blade member's side. The upper housing includes a second housing part including a second edge having a second contact face contact with the first contact face and a second facing surface facing to the first facing surface. The blade member is attached to the upper housing and arranged at a gap to the lower housing. Between the first and second facing surfaces, a width at a blade member's side is broader than a width at a first contact face's side. The first and second facing surfaces are bonded by an adhesive agent. The gap is sealed by the adhesive agent.
    Type: Application
    Filed: July 9, 2020
    Publication date: January 14, 2021
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Hiroaki TAKAI
  • Patent number: 10824091
    Abstract: A development device includes a rotational member and a housing. The rotational member rotates around an axis. In the housing, the rotational member and a toner are stored. The housing includes a lower housing and an upper housing. The lower housing has a concave first storage part having an opened upper face. The upper housing has a concave second storage part having an opened lower face. The first storage part has a first edge portion around the opened upper face. The first edge portion has a first contact face. The second storage part has a second edge portion around the opened lower face. The second edge portion has a second contact face coming into contact with the first contact face. The first contact face and the second contact face are contained in a single plane along respective entire circumferences.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: November 3, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hiroaki Takai, Hiroaki Ohashi, Hirofumi Tsuji, Masahiro Ueno, Yasutaka Hashimoto, Tomoyasu Yamada
  • Patent number: 10824093
    Abstract: A development device includes a rotational member and a housing. The housing includes a lower housing and an upper housing. The lower housing has an opened upper face. The upper housing has an opened lower face. A first edge portion around the opened upper face has a recess, a first contact face and a first opposite face. The first contact face is formed inside the recess. The first opposite face is formed outside the recess. A second edge portion around the opened lower face has a protrusion, a second contact face and a second opposite face. The protrusion is fitted into the recess. The second contact face comes into contact with the first contact face. The second opposite face opposes the first opposite face. The first and second contact faces are higher than the first and second opposite faces. The recess and the protrusion are adhered with an adhesive.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: November 3, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Yasutaka Hashimoto, Hirofumi Tsuji, Hiroaki Ohashi, Hiroaki Takai, Masahiro Ueno, Tomoyasu Yamada
  • Publication number: 20200264534
    Abstract: A development device includes a developer carrier, a housing, a layer thickness regulating member and an attachment member. The developer carrier carries a developer developing an electrostatic latent image formed on an image carrier, the developer carrier rotating around an axis. The housing stores the developer carrier and the developer, and has an opening through which the developer carrier is exposed. The layer thickness regulating member is disposed so as to form a gap between the layer thickness regulating member and the developer carrier and regulates a layer thickness of the developer carried on the developer carrier. The attachment member is made of a material has the same thermal expansion property as the layer thickness regulating member. The layer thickness regulating member is fixed to the attachment member using only an adhesive.
    Type: Application
    Filed: January 29, 2020
    Publication date: August 20, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Hiroaki OHASHI, Hirofumi TSUJI, Hiroaki TAKAI, Masahiro UENO, Yasutaka HASHIMOTO, Tomoyasu YAMADA
  • Publication number: 20200264535
    Abstract: A development device includes a rotational member and a housing. The housing includes a lower housing and an upper housing. The lower housing has an opened upper face. The upper housing has an opened lower face. A first edge portion around the opened upper face has a recess, a first contact face and a first opposite face. The first contact face is formed inside the recess. The first opposite face is formed outside the recess. A second edge portion around the opened lower face has a protrusion, a second contact face and a second opposite face. The protrusion is fitted into the recess. The second contact face comes into contact with the first contact face. The second opposite face opposes the first opposite face. The first and second contact faces are higher than the first and second opposite faces. The recess and the protrusion are adhered with an adhesive.
    Type: Application
    Filed: January 29, 2020
    Publication date: August 20, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Yasutaka HASHIMOTO, Hirofumi TSUJI, Hiroaki OHASHI, Hiroaki TAKAI, Masahiro UENO, Tomoyasu YAMADA
  • Publication number: 20200264533
    Abstract: A development device includes a rotational member and a housing. The rotational member rotates around an axis. In the housing, the rotational member and a toner are stored. The housing includes a lower housing and an upper housing. The lower housing has a concave first storage part having an opened upper face. The upper housing has a concave second storage part having an opened lower face. The first storage part has a first edge portion around the opened upper face. The first edge portion has a first contact face. The second storage part has a second edge portion around the opened lower face. The second edge portion has a second contact face coming into contact with the first contact face. The first contact face and the second contact face are contained in a single plane along respective entire circumferences.
    Type: Application
    Filed: January 29, 2020
    Publication date: August 20, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Hiroaki TAKAI, Hiroaki OHASHI, Hirofumi TSUJI, Masahiro UENO, Yasutaka HASHIMOTO, Tomoyasu YAMADA
  • Patent number: 10280019
    Abstract: A paper feeder includes a lift plate, a pickup roller, a feed roller, a retard roller, a rotation-count detection sensor, and a control unit. The rotation-count detection sensor outputs a rotation-count detection signal. The rotation-count detection signal indicates a rotation count of the retard roller. The control unit detects the rotation count of the retard roller based on the rotation-count detection signal. The lift plate separates from the pickup roller before the control unit detects the rotation count of the retard roller. The feed roller is driven when the control unit detects the rotation count of the retard roller. The retard roller is in abutting contact with the feed roller when the control unit detects the rotation count of the retard roller. The control unit determines whether replacement of the retard roller is necessary or not, based on the detected rotation count of the retard roller.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: May 7, 2019
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Hiroaki Takai
  • Patent number: 10146166
    Abstract: A sheet storage cassette includes a cassette body, a cassette cover, and a lock mechanism. The lock mechanism includes a lock member swingably provided on a back-surface side of the cassette cover and engageable with a locking pin provided in the cassette insertion portion, and a biasing member biasing the lock member in a direction toward engagement with the locking pin. Along with an operation of inserting the cassette body into the cassette insertion portion, the lock member engages with the locking pin. In a state where the cassette body is inserted in the cassette insertion portion, by inserting a thin-plate shaped release member into a gap between the cassette cover and an exterior member arranged under and adjacent to the cassette cover, the lock member is caused to swing to release the engagement with the locking pin.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: December 4, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hiroaki Takai