Patents by Inventor Akira Ohsuga

Akira Ohsuga 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: 7647601
    Abstract: A pickup supporter 72 supporting a pickup device 70A includes a driver 76 having an abutting surface 764 that is a flat surface substantially in parallel to an axial direction of a lead screw 752 and intersecting with both a focus direction and a plane direction substantially vertical to the focus direction. With such arrangement, even when a posture of the pickup supporter 72 is changed by adjusting heights of the main shaft 74A and the sub shaft 74B, the screw abutting surface 764 can abut on the lead screw 752 at a substantially constant angle. Therefore, when the posture of the pickup supporter 72 is changed, substantially constant driving force can be transmitted from the lead screw 752, so that stable and proper driving force can be constantly obtained.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: January 12, 2010
    Assignee: Pioneer Corporation
    Inventor: Akira Ohsuga
  • Publication number: 20090125929
    Abstract: A sensor 15 for detecting rotation speed of an optical disc is arranged on a sub-frame 5 so as to be positioned in the vicinity of a spindle motor 7. The sensor 15 has been arranged on a main frame 3 in a LightScribe-compatible optical disc apparatus of the conventional art, but is arranged on the sub-frame 5 in the present embodiment. With this arrangement, the sub-frame 5 near the sensor 15 can be increased in size. Specifically, the space occupied by the sensor 15 near the spindle motor 7 in the conventional art can be used as a region for the sub-frame 5, and thus the sub-frame 5 can be increased in size comparing with the conventional art. As a result, the mass of the sub-frame 5 is more increased than in the conventional art, by which the vibration suppression effect can be enhanced.
    Type: Application
    Filed: December 27, 2006
    Publication date: May 14, 2009
    Applicant: PIONEER CORPORATION
    Inventors: Tomonori Nakada, Akira Ohsuga
  • Publication number: 20050289579
    Abstract: A pickup supporter 72 supporting a pickup device 70A includes a driver 76 having an abutting surface 764 that is a flat surface substantially in parallel to an axial direction of a lead screw 752 and intersecting with both a focus direction and a plane direction substantially vertical to the focus direction. With such arrangement, even when a posture of the pickup supporter 72 is changed by adjusting heights of the main shaft 74A and the sub shaft 74B, the screw abutting surface 764 can abut on the lead screw 752 at a substantially constant angle. Therefore, when the posture of the pickup supporter 72 is changed, substantially constant driving force can be transmitted from the lead screw 752, so that stable and proper driving force can be constantly obtained.
    Type: Application
    Filed: March 16, 2005
    Publication date: December 29, 2005
    Applicant: PIONEER CORPORATION
    Inventor: Akira Ohsuga
  • Patent number: 6880162
    Abstract: A frame body 11 disposed within a case body 2 is provided with a main-body portion 20 for rotating an optical disk 28 to thereby read recorded information therefrom. The frame body 11 is assembled with a cooling fan 13. The frame body 11 is provided with a duct part communicated with a suction side of the cooling fan 13. The frame body 11 is mounted with a circuit board 81 for closing a lower surface of the frame body 11 and covering the below of the main-body portion 20, to thereby define a machine room and an airflow path room within the case body 2. The circuit board 81 is formed with a through-hole 83. Fresh air is allowed to efficiently contact with electrical components to thereby cool them.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: April 12, 2005
    Assignee: Pioneer Corporation
    Inventors: Keiichi Takagi, Toshiyuki Kaneko, Akira Ohsuga
  • Publication number: 20030058772
    Abstract: A frame body 11 disposed within a case body 2 is provided with a main-body portion 20 for rotating an optical disk 28 to thereby read recorded information therefrom. The frame body 11 is assembled with a cooling fan 13. The frame body 11 is provided with a duct part communicated with a suction side of the cooling fan 13. The frame body 11 is mounted with a circuit board 81 for closing a lower surface of the frame body 111 and covering the below of the main-body portion 20, to thereby define a machine room and an airflow path room within the case body 2. The circuit board 81 is formed with a through-hole 83. Fresh air is allowed to efficiently contact with electrical components to thereby cool them.
    Type: Application
    Filed: September 23, 2002
    Publication date: March 27, 2003
    Applicant: PIONEER CORPORATION
    Inventors: Keiichi Takagi, Toshiyuki Kaneko, Akira Ohsuga