Patents by Inventor Takayuki MICHII

Takayuki MICHII 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: 11890151
    Abstract: A method for designing dentures according to which artificial teeth can be easily and accurately attached to a denture base, which is designed and shaped by CAD/CAM, when the artificial teeth are arranged on the denture base is provided. The method for designing a denture (10) on a computer based on data on an intraoral shape comprises: creating data on a shape of a denture base (20) based on the intraoral shape (S22); creating data on a position of an artificial tooth (30) to be arranged on the denture base (S23); and creating data on a shape of an occlusal guide (40) that is tabular and has a recess part corresponding to a shape of the arranged artificial tooth in an occlusal surface side (S24).
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: February 6, 2024
    Assignee: GC CORPORATION
    Inventors: Kiyotaka Nakao, Takayuki Michii
  • Publication number: 20220202543
    Abstract: A dental impression tray includes a tray body on which an impression material is placed when taking an impression, and an impression pressure adjusting part provided on at least one end of the tray body along a direction of a dental arch, and capable of adjusting an impression pressure. The impression pressure adjusting part is provided at a position opposing a retromolar pad when taking the impression, and is capable of adjusting the impression pressure by removing at least a portion from a rearmost portion thereof.
    Type: Application
    Filed: May 13, 2020
    Publication date: June 30, 2022
    Inventors: Keiichi SASAKI, Takayuki MICHII
  • Publication number: 20210161627
    Abstract: A method for designing dentures according to which artificial teeth can be easily and accurately attached to a denture base, which is designed and shaped by CAD/CAM, when the artificial teeth are arranged on the denture base is provided. The method for designing a denture (10) on a computer based on data on an intraoral shape comprises: creating data on a shape of a denture base (20) based on the intraoral shape (S22); creating data on a position of an artificial tooth (30) to be arranged on the denture base (S23); and creating data on a shape of an occlusal guide (40) that is tabular and has a recess part corresponding to a shape of the arranged artificial tooth in an occlusal surface side (S24).
    Type: Application
    Filed: February 16, 2021
    Publication date: June 3, 2021
    Applicant: GC CORPORATION
    Inventors: Kiyotaka NAKAO, Takayuki MICHII
  • Publication number: 20210128283
    Abstract: The present invention provides a denture block capable of integrally and simply manufacturing a denture by using a CAD/CAM system. A denture is manufactured by cutting using a CAD/CAM system in a state in which the ridge portion 1b is gripped, has: an upper part which is a white part 2 to correspond to a tooth part of the denture; and a lower part which is a gingival color part 3 to correspond to a denture plate of the denture, wherein the white part 2 and the gingival color part 3 are integrally formed by being brought into close contact with each other with no gaps therebetween including the inside thereof, and a plurality of convex portions 4 and concave portions 5 are formed on an upper surface 3a which is the boundary surface of the gingival color part 3 with the white part 2.
    Type: Application
    Filed: August 15, 2018
    Publication date: May 6, 2021
    Applicant: GC CORPORATION
    Inventors: Hiroki KATO, Takayuki MICHII
  • Patent number: 10952828
    Abstract: A method for designing dentures according to which artificial teeth can be easily and accurately attached to a denture base, which is designed and shaped by CAD/CAM, when the artificial teeth are arranged on the denture base is provided. The method for designing a denture (10) on a computer based on data on an intraoral shape comprises: creating data on a shape of a denture base (20) based on the intraoral shape (S22); creating data on a position of an artificial tooth (30) to be arranged on the denture base (S23); and creating data on a shape of an occlusal guide (40) that is tabular and has a recess part corresponding to a shape of the arranged artificial tooth in an occlusal surface side (S24).
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: March 23, 2021
    Assignee: GC CORPORATION
    Inventors: Kiyotaka Nakao, Takayuki Michii
  • Publication number: 20200261190
    Abstract: A try-in device including: a try-in base; and artificial teeth that are arranged on the try-in base, wherein the artificial teeth are commonly-available artificial teeth.
    Type: Application
    Filed: November 27, 2018
    Publication date: August 20, 2020
    Applicants: Coredental Lab Yokohama Co., Ltd., GC CORPORATION
    Inventors: Takuya TAKIZAWA, Masashi YOSHIOKA, Makoto KUGA, Takayuki MICHII
  • Publication number: 20200054422
    Abstract: To provide try-in dentures which make it possible to adjust a bite more easily with high accuracy, a denture base part 12; a dentition part 13; an adjustment part 15; and a base part 14 are included, the adjustment part and the base part being separable from each other, and the adjustment part includes all of occlusal surfaces 13b of the dentition part, and a face 15a parallel to an occlusal plane 10a, the adjustment part being formed so that a movement of the adjustment part parallel to the occlusal plane with respect to the base part can be performed, a rotation of the adjustment part in the face parallel to the occlusal plane can be performed, or both the movement and the rotation can be performed.
    Type: Application
    Filed: October 30, 2017
    Publication date: February 20, 2020
    Applicant: GC CORPORATION
    Inventors: Takayuki MICHII, Takayuki UENO
  • Publication number: 20190358001
    Abstract: A dental tray system includes a maxillary impression tray configured to be filled with an impression material and to take an impression of an upper jaw side of an oral cavity; a mandibular impression tray configured to be filled with the impression material and to take the impression of a lower jaw side of the oral cavity; and a support plate provided between the maxillary impression tray and the mandibular impression tray and configured to movably support the maxillary impression tray and the mandibular impression tray in a front-to-rear direction.
    Type: Application
    Filed: September 27, 2017
    Publication date: November 28, 2019
    Applicant: GC Corporation
    Inventors: Keiichi SASAKI, Takayuki MICHII
  • Publication number: 20190343605
    Abstract: In one mode of the present invention, a resin plate is manufactured by processing a resin disk using CAD/CAM, and an access hole for screw fixation is formed in the resin plate.
    Type: Application
    Filed: December 12, 2017
    Publication date: November 14, 2019
    Inventors: Fumiya SATO, Takayuki MICHII, Takuya AKAGI
  • Publication number: 20190274795
    Abstract: A dental tray system includes a maxillary impression tray configured to be filled with an impression material and to take an impression of an upper jaw side of an oral cavity; a mandibular impression tray configured to be filled with the impression material and to take the impression of a lower jaw side of the oral cavity; and a support plate provided between the maxillary impression tray and the mandibular impression tray, and configured to movably support the maxillary impression tray and the mandibular impression tray in a front-to-rear direction and rotatably support the maxillary impression tray and the mandibular impression tray.
    Type: Application
    Filed: September 13, 2017
    Publication date: September 12, 2019
    Inventor: Takayuki MICHII
  • Publication number: 20190105133
    Abstract: A method for designing dentures according to which artificial teeth can be easily and accurately attached to a denture base, which is designed and shaped by CAD/CAM, when the artificial teeth are arranged on the denture base is provided. The method for designing a denture (10) on a computer based on data on an intraoral shape comprises: creating data on a shape of a denture base (20) based on the intraoral shape (S22); creating data on a position of an artificial tooth (30) to be arranged on the denture base (S23); and creating data on a shape of an occlusal guide (40) that is tabular and has a recess part corresponding to a shape of the arranged artificial tooth in an occlusal surface side (S24).
    Type: Application
    Filed: October 5, 2017
    Publication date: April 11, 2019
    Applicant: GC CORPORATION
    Inventors: Kiyotaka NAKAO, Takayuki MICHII
  • Patent number: 10039623
    Abstract: Provided is an impression tray with which three-dimensional data is easily obtained, including an upper jaw impression tray and lower jaw impression tray, wherein the upper jaw impression tray includes an upper jaw impression tray main body 11 including a surface where the impression material is to be placed; the lower jaw impression tray includes a lower jaw impression tray main body including a surface where the impression material is to be placed; a handle is attachably and detachably provided on at least either one of the upper jaw impression tray main body and lower jaw impression tray main body; and the handle, having a posture of attachment, projects from at least any one of a labial side, the upper jaw impression tray excepting the surface where the impression material is to be placed, and lower jaw impression tray excepting the surface where the impression material is to be placed.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: August 7, 2018
    Assignee: GC CORPORATION
    Inventors: Takayuki Michii, Hiroshi Kamohara, Tomohiro Kumagai
  • Publication number: 20170189145
    Abstract: Provided is an artificial tooth that can be unfailingly attached to a denture base in arranging the artificial tooth on the denture base designed and formed with a CAD/CAM, including a convex portion to be inserted in an internal corner of a concave portion of the denture base, wherein the convex portion is configured to form a predetermined gap with the internal corner without having contact with the internal corner when inserted in the internal corner.
    Type: Application
    Filed: June 11, 2015
    Publication date: July 6, 2017
    Inventors: Takayuki MICHII, Tomohiro KUMAGAI, Daisuke MATSUURA, Hiroyuki NAKASHIMA
  • Publication number: 20170007381
    Abstract: An object is to provide an artificial tooth that can be attached to a denture base designed by CAD/CAM to be formed easily and accurately when the artificial tooth is arranged on the denture base. In an artificial tooth (21) that has a shape corresponding to a denture base that is designed on CAD based on three-dimensional data and is cut out, a regulator (21a to 21h) that regulates the rotation on the axis of the tooth as the center is provided for a portion to touch the denture base, and the regulator has a shape so as not to engage with the denture base in the direction of the axis of the tooth.
    Type: Application
    Filed: January 28, 2015
    Publication date: January 12, 2017
    Inventors: Shunsuke MINAKUCHI, Manabu KANAZAWA, Shinta YAMAMOTO, Takayuki MICHII, Tomohiro KUMAGAI, Daisuke MATSUURA
  • Publication number: 20160184060
    Abstract: Provided is an impression tray with which three-dimensional data is easily obtained, including an upper jaw impression tray and lower jaw impression tray, wherein the upper jaw impression tray includes an upper jaw impression tray main body 11 including a surface where the impression material is to be placed; the lower jaw impression tray includes a lower jaw impression tray main body including a surface where the impression material is to be placed; a handle is attachably and detachably provided on at least either one of the upper jaw impression tray main body and lower jaw impression tray main body; and the handle, having a posture of attachment, projects from at least any one of a labial side, the upper jaw impression tray excepting the surface where the impression material is to be placed, and lower jaw impression tray excepting the surface where the impression material is to be placed.
    Type: Application
    Filed: June 11, 2014
    Publication date: June 30, 2016
    Inventors: Takayuki MICHII, Hiroshi KAMOHARA, Tomohiro KUMAGAI
  • Patent number: D811600
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: February 27, 2018
    Assignee: GC Corporation
    Inventors: Kazuhisa Kashiwabara, Takayuki Michii
  • Patent number: D813397
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: March 20, 2018
    Assignee: GC Corporation
    Inventors: Kazuhisa Kashiwabara, Takayuki Michii
  • Patent number: D925043
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: July 13, 2021
    Assignee: GC Corporation
    Inventors: Keiichi Sasaki, Takayuki Michii