Patents by Inventor Akihiro Etoh

Akihiro Etoh 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).

  • LENS BARREL
    Publication number: 20080252999
    Abstract: A lens barrel, including, a moving frame (2) to hold a lens (8), a direct-advance ring (4) provided on an outer periphery of the moving frame and movable relative to the moving frame in an optical direction, a resilient member (6) provided between the moving frame and the direct-advance ring, and a control part (10) provided on the moving frame to control an amount of movement of the direct-advance ring in the optical direction.
    Type: Application
    Filed: June 14, 2007
    Publication date: October 16, 2008
    Inventors: Katsuhiko NUNO, Ikuya Tsurukawa, Kaoru Ito, Junichi Shinohara, Akihiro Etoh
  • Lens barrel
    Patent number: 7259923
    Abstract: A lens barrel, including, a moving frame (2) to hold a lens (8), a direct-advance ring (4) provided on an outer periphery of the moving frame and movable relative to the moving frame in an optical direction, a resilient member (6) provided between the moving frame and the direct-advance ring, and a control part (10) provided on the moving frame to control an amount of movement of the direct-advance ring in the optical direction.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: August 21, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Katsuhiko Nuno, Ikuya Tsurukawa, Kaoru Ito, Junichi Shinohara, Akihiro Etoh
  • Imaging apparatus, and method and device for shake correction in imaging apparatus
    Patent number: 6940542
    Abstract: Detection information for shake is detected by a shake detection unit, predictive shake information is calculated based on the shake detection information, a start position (center) of a correcting operation on an imaging surface of a shake correction unit is determined, and driving of the shake correction unit at the correcting-operation start position is controlled. Accordingly, it is possible to make effective use of a movable range of the shake correction unit for actual hand shake or the like. Thus, a high degree of correction effect can be obtained, so that imaging failures due to hand shake or the like can be remarkably reduced.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: September 6, 2005
    Assignee: Ricoh Company, LTD
    Inventors: Tomofumi Kitazawa, Takashi Kitaguchi, Hiromasa Shimizu, Masayoshi Katoh, Yasuhiro Sato, Saburoh Sasaki, Akihiro Etoh
  • Lens barrel
    Publication number: 20050068638
    Abstract: A lens barrel, including, a moving frame (2) to hold a lens (8), a direct-advance ring (4) provided on an outer periphery of the moving frame and movable relative to the moving frame in an optical direction, a resilient member (6) provided between the moving frame and the direct-advance ring, and a control part (10) provided on the moving frame to control an amount of movement of the direct-advance ring in the optical direction.
    Type: Application
    Filed: August 9, 2004
    Publication date: March 31, 2005
    Inventors: Katsuhiko Nuno, Ikuya Tsurukawa, Kaoru Ito, Junichi Shinohara, Akihiro Etoh
  • Imaging apparatus, and method and device for shake correction in imaging apparatus
    Publication number: 20020163581
    Abstract: Detection information for shake is detected by a shake detection unit, predictive shake information is calculated based on the shake detection information, a start position (center) of a correcting operation on an imaging surface of a shake correction unit is determined, and driving of the shake correction unit at the correcting-operation start position is controlled. Accordingly, it is possible to make effective use of a movable range of the shake correction unit for actual hand shake or the like. Thus, a high degree of correction effect can be obtained, so that imaging failures due to hand shake or the like can be remarkably reduced.
    Type: Application
    Filed: July 10, 2001
    Publication date: November 7, 2002
    Applicant: RICOH COMPANY, LIMITED
    Inventors: Tomofumi Kitazawa, Takashi Kitaguchi, Hiromasa Shimizu, Masayoshi Katoh, Yasuhiro Sato, Saburoh Sasaki, Akihiro Etoh