Patents by Inventor Tamotsu Tamada

Tamotsu Tamada 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).

  • Optical part holding unit
    Patent number: 7428110
    Abstract: It is an object to provide an optical component holding unit whereby the positioning accuracy can be improved while reducing cost through facilitated assembling and ensuring reproducibility. The fitting between a cross-sectionally noncircular-shaped rectangular convex portion 8a and a rectangular hole and the fitting between a cross-sectionally circular-shaped circular convex portion 11a and a circular hole, which surround or form opening portions 22a and 22b for allowing passage of light, guide adjacent optical component holding units 35 to predetermined positions and couples the units detachably to each other for positioning in the three-dimensional direction, while the fitting between the rectangular convex portion 8a and the rectangular hole and the fitting between spring pins 13a and fitting holes restrain the adjacent optical component holding units 35 relatively in the rotation direction for positioning in the rotation direction.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: September 23, 2008
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Tamotsu Tamada, Kazunori Nomi, Shigeru Sakamoto
  • Optical Part Holding Unit
    Publication number: 20070286557
    Abstract: It is an object to provide an optical component holding unit whereby the positioning accuracy can be improved while reducing cost through facilitated assembling and ensuring reproducibility. The fitting between a cross-sectionally noncircular-shaped rectangular convex portion 8a and a rectangular hole and the fitting between a cross-sectionally circular-shaped circular convex portion 11a and a circular hole, which surround or form opening portions 22a and 22b for allowing passage of light, guide adjacent optical component holding units 35 to predetermined positions and couples the units detachably to each other for positioning in the three-dimensional direction, while the fitting between the rectangular convex portion 8a and the rectangular hole and the fitting between spring pins 13a and fitting holes restrain the adjacent optical component holding units 35 relatively in the rotation direction for positioning in the rotation direction.
    Type: Application
    Filed: February 17, 2005
    Publication date: December 13, 2007
    Inventors: Tamotsu Tamada, Kazunori Nomi, Shigeru Sakamoto