Patents by Inventor Koichi Kuroda

Koichi Kuroda 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: 11994775
    Abstract: In this liquid crystal display device, a plurality of pixels 30 are arranged in a display region. The liquid crystal display device comprises a first substrate 11 in which a pixel electrode 15 having slits 15a is provided, a second substrate disposed face to the first substrate 11, a liquid crystal layer 13 containing liquid crystal molecules that have negative dielectric anisotropy, a first alignment film 22, and a second alignment film 23. The slits 15a are positioned in each alignment region of a plurality of alignment regions in the pixels 30, and have oblique slit parts extending in an oblique direction with respect to sides of the pixels 30. The angle ? formed by the direction in which the oblique slit parts extends and a liquid crystal projection direction is 15 degrees or more and 85 degrees or less.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: May 28, 2024
    Assignee: JSR CORPORATION
    Inventors: Yoshihiko Kuroda, Koichi Miyachi
  • Publication number: 20230054014
    Abstract: A method disclosed herewith is a method for producing a first seamless metal tube with a first wall thickness and a second seamless metal tube with a second wall thickness by using a three-roll-type inclined rolling mill, and the method includes a first inclination rolling step (#5), a setting changing step (#10), and a second inclination rolling step (#15). At the first inclination rolling step, a first workpiece is rolled by the inclined rolling mill. At the setting changing step, a setup condition of the inclined rolling mill is changed in a manner (a) or (b) as described below. At the second inclined rolling step, a second workpiece is rolled by the inclined rolling mill under the changed condition. (a) When the second wall thickness is smaller than the first wall thickness, the cross angle of each of the inclined rolls is made greater than the cross angle set for the first inclination rolling step.
    Type: Application
    Filed: September 28, 2020
    Publication date: February 23, 2023
    Inventors: Kazuhiro SHIMODA, Kouji YAMANE, Koichi KURODA, Yuji INOUE, Shusuke SHIMOOKA, Kazuyuki MURAKAMI, Kota SHINDO
  • Publication number: 20220397189
    Abstract: A power transmission device for a work vehicle includes: a transmission case; a gear transmission contained in the transmission case and configured to receive motive power from a power source; a differential mechanism contained in the transmission case and configured to receive motive power from the gear transmission and transmit the motive power to a left wheel and a right wheel; and a gear cover covering a lower portion of a ring gear of the differential mechanism.
    Type: Application
    Filed: June 6, 2022
    Publication date: December 15, 2022
    Applicant: KUBOTA CORPORATION
    Inventors: Atsushi JINNAI, Sota KITAMURA, Koichi KURODA, Hiroshi YACHI
  • Patent number: 11517359
    Abstract: In order to apply, with a simple and easy means, proper pressure between bone segments spaced apart as a result of osteotomy or a bone fracture, without lowering the fixing force at the screw meshing portion, without increasing a dead space, and without increasing the thickness of the plate, the present invention provides a bone plate having an upper face, which is to be in contact with bone, a lower face, which is to be in contact with the bone, and a plurality of holes arranged to receive bone screws and connecting the upper face and the lower face. In at least one of the holes, a portion of an edge, on the upper face, of the hole is formed so as to be raised in the form of a protrusion higher than the upper face around the hole.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: December 6, 2022
    Assignee: OLYMPUS TERUMO BIOMATERIALS CORP.
    Inventors: Koichi Kuroda, Yasuharu Yokoyama, Tomohiko Fukuhara, Masaki Atarashi, Kitaru Suzuki, Minoru Harada, Toshihisa Iwanaga, Mitsuya Urata
  • Publication number: 20220378986
    Abstract: An implant including an implant body to be inserted into biological tissue, the implant body having a hollow portion that penetrates the implant body, and an antibacterial property-imparting means that imparts an antibacterial property to at least the hollow portion of the implant body.
    Type: Application
    Filed: August 4, 2022
    Publication date: December 1, 2022
    Applicant: OLYMPUS TERUMO BIOMATERIALS CORP.
    Inventors: Masaki ATARASHI, Kimiaki TAKAMI, Koichi KURODA
  • Patent number: 11317925
    Abstract: An osteotomy surgical apparatus according to the present invention includes a bone cutting blade used for cutting bone tissue and a guard disposed so as to overlap the bone cutting blade in a side view of the bone cutting blade. A distal end of the guard is disposed at a position retracted rearward relative to a blade edge of the bone cutting blade.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: May 3, 2022
    Assignee: OLYMPUS TERUMO BIOMATERIALS CORP.
    Inventors: Koichi Kuroda, Mitsuya Urata, Ryohei Takeuchi
  • Patent number: 11253295
    Abstract: Provided is a vertebral spacer including a columnar main-body portion attached to individual cut end portions of the cut vertebral arch by screws, wherein the main-body portion is provided with two accommodating holes formed inside the main-body portion at positions spaced in a longitudinal direction of the main-body portion, and individually accommodating head portions of the screws, the individual accommodating holes are provided with openings through which the head portions are inserted into the accommodating holes from outside the main-body portion, and the openings have diameters greater than diameters of shaft portions of the screws, smaller than diameters of the head portions, and increased to a size that is greater than the diameters of the head portions.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: February 22, 2022
    Assignee: OLYMPUS TERUMO BIOMATERIALS CORP.
    Inventors: Tomohiko Fukuhara, Koji Nishiyama, Koichi Kuroda, Mitsuya Urata, Katsuyoshi Sobue, Ryunosuke Seki
  • Patent number: 11076899
    Abstract: A pressing tool for bone surgery according to the present invention includes a pressing member formed substantially columnar shape having, at one end, a pressing surface formed of a convex and substantially spherical surface; and a hook member formed to have a hook shape that is to be engaged with a surface of a bone, the hook member having a support portion at a first end, the support portion supporting the pressing member so that the pressing surface is directed toward a second end, and a projection portion at the second end, the projection portion projecting toward the supporting portion and being to be bited into the surface of the bone, wherein the support portion supports the pressing member in state of the pressing member is movable in a longitudinal direction toward the projection portion.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: August 3, 2021
    Assignee: OLYMPUS TERUMO BIOMATERIALS CORP.
    Inventors: Koichi Kuroda, Mitsuya Urata, Ryohei Takeuchi
  • Publication number: 20210229153
    Abstract: Method for bend straightening in which a steel pipe having a bend is placed in a state where the steel pipe is convex upward, the steel pipe is pressed from above by a press unit at a target load value, whereby the steel pipe is straightened, the method including: (a) measuring a bottom-dead-center load value Pk when the press unit is at a bottom dead center in the pressing; (b) measuring an amount of change 46 in amount of bend between an amount of bend of the steel pipe before the pressing in step (a) and an amount of bend of the steel pipe after the pressing in the step (a); (c) repeating step (a) and step (b) a plurality of times to create a relational expression Pk=(??); and (d) determining a target load value for next pressing from the relational expression Pk =(??).
    Type: Application
    Filed: August 6, 2019
    Publication date: July 29, 2021
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Koichi KURODA, Shuji OTAO
  • Publication number: 20210177473
    Abstract: In order to apply, with a simple and easy means, proper pressure between bone segments spaced apart as a result of osteotomy or a bone fracture, without lowering the fixing force at the screw meshing portion, without increasing a dead space, and without increasing the thickness of the plate, the present invention provides a bone plate having an upper face, which is to be in contact with bone, a lower face, which is to be in contact with the bone, and a plurality of holes arranged to receive bone screws and connecting the upper face and the lower face. In at least one of the holes, a portion of an edge, on the upper face, of the hole is formed so as to be raised in the form of a protrusion higher than the upper face around the hole.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 17, 2021
    Applicant: OLYMPUS TERUMO BIOMATERIALS CORP.
    Inventors: Koichi KURODA, Yasuharu YOKOYAMA, Tomohiko FUKUHARA, Masaki ATARASHI, Kitaru SUZUKI, Minoru HARADA, Toshihisa IWANAGA, Mitsuya URATA
  • Patent number: 11002647
    Abstract: A stress test the jig 10 includes an upper cylinder 12, a lower cylinder 14, and a frame 16. The frame 16 has an accommodating space 16a, an upper through hole 16b, and a lower through hole 16c. A test specimen 20 is disposed in the accommodating space 16a, the upper cylinder 12 is inserted into the upper through hole 16b, and the lower cylinder 14 is inserted into the lower through hole 16c. The upper cylinder 12 and the lower cylinder 14 fix the test specimen 20 such that the test specimen 20, the upper cylinder 12, and the lower cylinder 14 are positioned coaxially.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: May 11, 2021
    Assignee: Nippon Steel Corporation
    Inventors: Koichi Kuroda, Daisaku Yanaga, Yuhei Suzuki
  • Patent number: 10932831
    Abstract: A bone plate includes: a band-shaped body section that is fixed along a longitudinal direction of the tibia; a transverse section that is fixed along a direction intersecting the longitudinal direction of the tibia; a joining section for joining the body section and the transverse section; and screw holes. The body section, the joining section, and the transverse section have a curved surface shape, a first plane on which the axial line of a screw hole in the joining section is disposed and a second plane on which the axial line of a screw hole in the body section is disposed are substantially parallel to each other, the angles between a straight line connecting a longitudinal direction upper-end portion and lower-end portion of the bone plate and the first plane and the second plane are predetermined angles, and an axial line and an axial line are at twisted positions.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: March 2, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Koichi Kuroda, Mitsuya Urata
  • Patent number: 10905480
    Abstract: The bone plate of the present invention includes a body portion to be fixed to an obliquely anterior medial surface of the tibia below the osteotomy surface; a wide portion to be fixed to an outer peripheral surface of the tibia at a higher position than the osteotomy surface; a connecting portion that connects the body portion and the wide portion; and a plurality of screw holes arrayed in the body portion, the wide portion and the connecting portion. An inner surface that extends from the wide portion to the connecting portion and faces the tibia has a continuous curved shape twisted about an axis along the longitudinal direction of the tibia. The wide portion is offset in an outward plate thickness direction with respect to the body portion.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: February 2, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Koichi Kuroda, Mitsuya Urata, Ryohei Takeuchi
  • Publication number: 20200000499
    Abstract: Provided is a vertebral spacer including a columnar main-body portion attached to individual cut end portions of the cut vertebral arch by screws, wherein the main-body portion is provided with two accommodating holes formed inside the main-body portion at positions spaced in a longitudinal direction of the main-body portion, and individually accommodating head portions of the screws, the individual accommodating holes are provided with openings through which the head portions are inserted into the accommodating holes from outside the main-body portion, and the openings have diameters greater than diameters of shaft portions of the screws, smaller than diameters of the head portions, and increased to a size that is greater than the diameters of the head portions.
    Type: Application
    Filed: September 9, 2019
    Publication date: January 2, 2020
    Applicant: OLYMPUS TERUMO BIOMATERIALS CORP.
    Inventors: Tomohiko FUKUHARA, Koji NISHIYAMA, Koichi KURODA, Mitsuya URATA, Katsuyoshi SOBUE, Ryunosuke SEKI
  • Publication number: 20190242799
    Abstract: A stress test the jig 10 includes an upper cylinder 12, a lower cylinder 14, and a frame 16. The frame 16 has an accommodating space 16a, an upper through hole 16b, and a lower through hole 16c. A test specimen 20 is disposed in the accommodating space 16a, the upper cylinder 12 is inserted into the upper through hole 16b, and the lower cylinder 14 is inserted into the lower through hole 16c. The upper cylinder 12 and the lower cylinder 14 fix the test specimen 20 such that the test specimen 20, the upper cylinder 12, and the lower cylinder 14 are positioned coaxially.
    Type: Application
    Filed: July 18, 2017
    Publication date: August 8, 2019
    Inventors: Koichi Kuroda, Daisaku Yanaga, Yuhei Suzuki
  • Publication number: 20190175235
    Abstract: A pressing tool for bone surgery according to the present invention includes a pressing member formed substantially columnar shape having, at one end, a pressing surface formed of a convex and substantially spherical surface; and a hook member formed to have a hook shape that is to be engaged with a surface of a bone, the hook member having a support portion at a first end, the support portion supporting the pressing member so that the pressing surface is directed toward a second end, and a projection portion at the second end, the projection portion projecting toward the supporting portion and being to be bited into the surface of the bone, wherein the support portion supports the pressing member in state of the pressing member is movable in a longitudinal direction toward the projection portion.
    Type: Application
    Filed: January 23, 2019
    Publication date: June 13, 2019
    Applicant: OLYMPUS TERUMO BIOMATERIALS CORP.
    Inventors: Koichi KURODA, Mitsuya URATA, Ryohei TAKEUCHI
  • Publication number: 20190150945
    Abstract: An osteotomy surgical apparatus according to the present invention includes a bone cutting blade used for cutting bone tissue and a guard disposed so as to overlap the bone cutting blade in a side view of the bone cutting blade. A distal end of the guard is disposed at a position retracted rearward relative to a blade edge of the bone cutting blade.
    Type: Application
    Filed: January 24, 2019
    Publication date: May 23, 2019
    Applicant: OLYMPUS TERUMO BIOMATERIALS CORP.
    Inventors: Koichi Kuroda, Mitsuya Urata, Ryohei Takeuchi
  • Publication number: 20190090921
    Abstract: The bone plate of the present invention includes a body portion to be fixed to an obliquely anterior medial surface of the tibia below the osteotomy surface; a wide portion to be fixed to an outer peripheral surface of the tibia at a higher position than the osteotomy surface; a connecting portion that connects the body portion and the wide portion; and a plurality of screw holes arrayed in the body portion, the wide portion and the connecting portion. An inner surface that extends from the wide portion to the connecting portion and faces the tibia has a continuous curved shape twisted about an axis along the longitudinal direction of the tibia. The wide portion is offset in an outward plate thickness direction with respect to the body portion.
    Type: Application
    Filed: November 27, 2018
    Publication date: March 28, 2019
    Applicant: OLYMPUS TERUMO BIOMATERIALS CORP.
    Inventors: Koichi KURODA, Mitsuya URATA, Ryohei TAKEUCHI
  • Publication number: 20190069937
    Abstract: A bone plate includes: a band-shaped body section that is fixed along a longitudinal direction of the tibia; a transverse section that is fixed along a direction intersecting the longitudinal direction of the tibia; a joining section for joining the body section and the transverse section; and screw holes. The body section, the joining section, and the transverse section have a curved surface shape, a first plane on which the axial line of a screw hole in the joining section is disposed and a second plane on which the axial line of a screw hole in the body section is disposed are substantially parallel to each other, the angles between a straight line connecting a longitudinal direction upper-end portion and lower-end portion of the bone plate and the first plane and the second plane are predetermined angles, and an axial line and an axial line are at twisted positions.
    Type: Application
    Filed: November 5, 2018
    Publication date: March 7, 2019
    Applicant: OLYMPUS TERUMO BIOMATERIALS CORP.
    Inventors: Koichi KURODA, Mitsuya URATA
  • Patent number: 10184160
    Abstract: A dual phase stainless steel pipe includes tensile yield strength YSLT of 689.1 MPa to 1000.5 MPa in a pipe axis direction of the dual phase stainless steel pipe, in which the tensile yield strength YSLT, a compressive yield strength YSLC in the pipe axis direction, a tensile yield strength YSCT in a pipe circumferential direction of the dual phase stainless steel pipe, and a compressive yield strength YSCC in the pipe circumferential direction satisfy all Expressions (1) to (4), 0.90?YSLC/YSLT?1.11??(1) 0.90?YSCC/YSCT?1.11??(2) 0.90?YSCC/YSLT?1.11??(3) 0.90?YSCT/YSLT?1.11??(4).
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: January 22, 2019
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Naoki Sawawatari, Koichi Kuroda, Masaki Ueyama, Yusuke Ugawa