Patents by Inventor Tetsuo Tamura

Tetsuo Tamura 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).

  • Control mechanism for a zoom lens
    Patent number: 4484800
    Abstract: A mechanism for controlling synchronized operation of a zoom lens includes a cam mechanism defining a first camming surface and a supplementary camming surface for each of the lens components to be moved. A lens holder has an engagement member extending therefrom into abutment with the first camming surface and a spring member operatively interposed between a second engaging member and the lens holder urges the second engaging member against the supplementary camming surface thereby to insure that the first engaging member remains in abutment with the first camming surface to effect desired axial displacement of the lens component.
    Type: Grant
    Filed: September 9, 1982
    Date of Patent: November 27, 1984
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsuo Tamura
  • Control mechanism for a zoom lens
    Patent number: 4380378
    Abstract: A mechanism for controlling synchronized operation of a zoom lens includes a cam mechanism defining a first camming surface and a supplementary camming surface for each of the lens components to be moved. A lens holder has an engagement member extending therefrom into abutment with the first camming surface and a spring member operatively interposed between a second engaging member and the lens holder urges the second engaging member against the supplementary camming surface thereby to insure that the first engaging member remains in abutment with the first camming surface to effect desired axial displacement of the lens component.
    Type: Grant
    Filed: May 20, 1980
    Date of Patent: April 19, 1983
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsuo Tamura
  • Operation switch for solenoid valve
    Patent number: D442147
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: May 15, 2001
    Assignee: SMC Corporation
    Inventor: Tetsuo Tamura
  • Electromagnetic valve
    Patent number: D692984
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: November 5, 2013
    Assignee: SMC Corporation
    Inventors: Tetsuo Tamura, Kazuaki Takemura, Masanori Kaitsuka
  • Electromagnetic valve
    Patent number: D692985
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: November 5, 2013
    Assignee: SMC Corporation
    Inventors: Tetsuo Tamura, Kazuaki Takemura, Masanori Kaitsuka
  • Electromagnetic valve
    Patent number: D693431
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: November 12, 2013
    Assignee: SMC Corporation
    Inventors: Tetsuo Tamura, Kazuaki Takemura, Masanori Kaitsuka
  • Electromagnetic valve
    Patent number: D693903
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: November 19, 2013
    Assignee: SMC Corporation
    Inventors: Tetsuo Tamura, Kazuaki Takemura, Masanori Kaitsuka
  • Electromagnetic valve
    Patent number: D695380
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: December 10, 2013
    Assignee: SMC Corporation
    Inventors: Tetsuo Tamura, Kazuaki Takemura, Masanori Kaitsuka
  • Electromagnetic valve
    Patent number: D698417
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: January 28, 2014
    Assignee: SMC Corporation
    Inventors: Tetsuo Tamura, Kazuaki Takemura, Masanori Kaitsuka
  • Electromagnetic valve
    Patent number: D698898
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: February 4, 2014
    Assignee: SMC Corporation
    Inventors: Tetsuo Tamura, Kazuaki Takemura, Masanori Kaitsuka