Patents by Inventor Yukio Kazama

Yukio Kazama 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: 10838337
    Abstract: A fixing device includes a fixing rotator, a pressure rotator, a gear, and a sleeve. The pressure rotator is configured to contact the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. The gear is disposed on an axial end side of the pressure rotator to transmit a driving force. The sleeve extends from the gear in an axial direction of the pressure rotator.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: November 17, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventor: Yukio Kazama
  • Publication number: 20200356032
    Abstract: A fixing device includes a fixing rotator, a pressure rotator, a gear, and a sleeve. The pressure rotator is configured to contact the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. The gear is disposed on an axial end side of the pressure rotator to transmit a driving force. The sleeve extends from the gear in an axial direction of the pressure rotator.
    Type: Application
    Filed: April 2, 2020
    Publication date: November 12, 2020
    Inventor: Yukio KAZAMA
  • Patent number: 8305413
    Abstract: An optical scanner unit includes an LD unit, a polygon mirror deflecting a light beam, an optical scan system focusing the light beam from the polygon mirror on a photoconductive drum to form an electrostatic latent image, and a synchronous detector receiving a part of the light beam to detect a write start position on the photoconductive drum in main scan direction. The synchronous detector is fixed on a portion of a housing at predetermined angles in main and sub scan directions relative to an incidence angle of the light beam on the synchronous detector.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: November 6, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Takanori Aoyama, Tomoyuki Murakami, Yukio Kazama
  • Publication number: 20100103239
    Abstract: An optical scanner unit includes an LD unit, a polygon mirror deflecting a light beam, an optical scan system focusing the light beam from the polygon mirror on a photoconductive drum to form an electrostatic latent image, and a synchronous detector receiving a part of the light beam to detect a write start position on the photoconductive drum in main scan direction. The synchronous detector is fixed on a portion of a housing at predetermined angles in main and sub scan directions relative to an incidence angle of the light beam on the synchronous detector.
    Type: Application
    Filed: September 30, 2009
    Publication date: April 29, 2010
    Applicant: RICOH COMPANY, LTD.
    Inventors: Takanori Aoyama, Tomoyuki Murakami, Yukio Kazama
  • Patent number: 6123464
    Abstract: A method of manufacturing an optical module package, which comprises the steps of, attaching a first member to a frame by means of silver-brazing to obtain a frame structure, applying an Au plating to the frame structure applied with the silver-brazing, and soldering a second member to the frame structure applied with the Au plating, wherein the method further comprises the steps of subjecting the frame structure to a high temperature dehydrogenation treatment of heating the frame structure in an non-oxidizing atmosphere at a temperature of 340.degree. C. or more for 10 minutes or more after the silver-brazing step and before the Au plating step, and subjecting the frame structure to a low temperature dehydrogenation treatment of heating the frame structure in an non-oxidizing atmosphere at a temperature ranging from 240.degree. C. to 260.degree. C. for 5 minutes or more after the soldering step.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: September 26, 2000
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Hideaki Murata, Takeshi Aikiyo, Kazuto Ono, Masato Sakata, Yukio Kazama
  • Patent number: 5804865
    Abstract: A package for optical semiconductor device comprising a metallic frame having a side wall provided with an optical fiber-securing portion for securing an optical fiber to be introduced through the side wall, and a metallic bottom plate for mounting the optical semiconductor device thereon. The metallic frame is provided at a lower portion of the side wall thereof with securing parts for securing the package to a substrate, each securing part outwardly extending in a direction parallel with the metallic bottom plate. The level of bottom face of the metallic bottom plate is made lower than that of the bottom face of the securing parts. The securing parts are integrally formed with the metallic frame.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: September 8, 1998
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Masato Sakata, Yukio Kazama, Kazuto Ono, Hideaki Murata