Patents Represented by Attorney Hush Blackwell LLP

Find this attorney in the Justia Lawyer Directory

  • Methods and apparatus to make substantially uniform losses in optical cross connects
    Patent number: 8270785
    Abstract: A method for cross connecting optical signals includes using a common beam steerer to direct a set of optical signals from a set of input ports to a set of output ports. The method further includes adjusting a curvature of the common beam steerer so that paths of the optical signals have substantially the same effective path length.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: September 18, 2012
    Assignee: Tellabs Operations, Inc.
    Inventor: Jerry C. Chen
  • Method of manufacturing semiconductor device
    Patent number: 7994021
    Abstract: A method of forming a semiconductor device is provided, including a step of forming a layer which absorbs light over one face of a first substrate, a step of providing a second substrate over the layer which absorbs light, a step of providing a mask to oppose the other face of the first substrate, and a step of transferring the part of the layer which absorbs light to the second substrate by irradiating the layer which absorbs light with a laser beam through the mask.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: August 9, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hidekazu Miyairi, Hironobu Shoji, Akihisa Shimomura, Eiji Higa, Tomoaki Moriwaka, Shunpei Yamazaki