Patents by Inventor Akio SAKUMA

Akio SAKUMA 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: 20210197448
    Abstract: The present invention allows formation of a pattern on sheets of various sizes. A pattern producing device includes: a formation section configured to form a pattern by irradiating a pattern forming sheet with a light beam; a shaping table placed above the formation section, having a first opening to pass the light beam, and configured to mount the pattern forming sheet thereon; a column configured to attach the shaping table thereto; and an adapter located in the shaping table, partially closing the first opening, having a second opening to pass the light beam, and configured to mount the pattern forming sheet thereon.
    Type: Application
    Filed: November 14, 2017
    Publication date: July 1, 2021
    Inventors: Eiji OSHIMA, Kazutaka NOBORIMOTO, Akio SAKUMA
  • Publication number: 20190179102
    Abstract: Attachment of a lens unit is selected to implement large-size shaping and small-size high-resolution shaping by one apparatus. There is provided a three-dimensional shaping, apparatus including an attachment mechanism and an adjustment mechanism. The attachment mechanism of the three-dimensional shaping apparatus attaches, to a predetermined position, a lens unit that condenses a light beam from a light source. The adjustment mechanism of the three-dimensional shaping apparatus adjusts a position of the light source in accordance with the attached lens unit.
    Type: Application
    Filed: September 28, 2018
    Publication date: June 13, 2019
    Inventors: Eiji OSHIMA, Akio SAKUMA
  • Publication number: 20190168460
    Abstract: A platform is positioned accurately. There is provided a three-dimensional shaping apparatus for shaping a three-dimensional shaped object, including a material storage that stores a material of the three-dimensional shaped object, a platform arranged facing the material storage, a moving unit that moves the platform in a vertical direction, a shaping pad that is provided on a surface, facing the material storage, of the platform, and on which the three-dimensional shaped object is shaped, a first detector that detects downward movement of the material storage, and a movement controller that controls, if the downward movement of the material storage is detected, the movement of the platform by the moving unit.
    Type: Application
    Filed: September 28, 2018
    Publication date: June 6, 2019
    Inventors: Eiji OSHIMA, Kazutaka NOBORIMOTO, Akio SAKUMA
  • Publication number: 20190168459
    Abstract: A platform is positioned accurately. There is provided a three-dimensional shaping apparatus for shaping a three-dimensional shaped object, including a material storage, a platform, a moving unit, and a shaping pad. The material storage stores a material of the three-dimensional shaped object. The platform is arranged facing the material storage. The moving unit moves the platform in a vertical direction. The shaping pad on which the three-dimensional shaped object is shaped is provided via an elastic member on a surface, facing the material storage, of the platform.
    Type: Application
    Filed: September 28, 2018
    Publication date: June 6, 2019
    Inventors: Eiji OSHIMA, Kazutaka NOBORIMOTO, Akio SAKUMA
  • Patent number: 10254502
    Abstract: A lens assembly and an imaging device for realizing low-profileness, and for effectively compensating a change in back focus generated by a change in atmospheric temperature. A lens holder contained in a lens assembly of an imaging device includes an inner frame on which a lens unit is attached, a holding frame provided with a lower end surface fixing a positional relationship with an image sensor, a linking frame for linking the inner frame and the holding frame. The lens holder extends and contracts so that the inner frame and the holding frame distance the lens unit from the image sensor when back focus of the lens unit extends due to change in atmospheric temperature, and brings the lens unit closer to the image sensor when the back focus contracts.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: April 9, 2019
    Assignee: KANTATSU CO., LTD.
    Inventors: Akio Sakuma, Makoto Ikeda
  • Publication number: 20170276895
    Abstract: A lens assembly and an imaging device for realizing low-profileness, and for effectively compensating a change in back focus generated by a change in atmospheric temperature. A lens holder contained in a lens assembly of an imaging device includes an inner frame on which a lens unit is attached, a holding frame provided with a lower end surface fixing a positional relationship with an image sensor, a linking frame for linking the inner frame and the holding frame. The lens holder extends and contracts so that the inner frame and the holding frame distance the lens unit from the image sensor when back focus of the lens unit extends due to change in atmospheric temperature, and brings the lens unit closer to the image sensor when the back focus contracts.
    Type: Application
    Filed: October 26, 2016
    Publication date: September 28, 2017
    Applicant: KANTATSU CO., LTD.
    Inventors: Akio SAKUMA, Makoto IKEDA