Patents by Inventor Minoru Doshida

Minoru Doshida 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 semiconductor device with quantum dots having configurational anisotropy
    Patent number: 8395106
    Abstract: An optical semiconductor device includes a lower electrode layer formed over a semiconductor substrate, an infrared absorption layer formed over the lower electrode layer 26, and an upper electrode layer 38 formed over the infrared absorption layer 36. The infrared absorption layer includes a quantum dot having dimensions different among directions stacked, and is sensitive to infrared radiation of wavelengths different corresponding to polarization directions.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: March 12, 2013
    Assignees: Technical Research & Development Institute Ministry of Defense of Japan, Fujitsu Limited
    Inventors: Minoru Doshida, Mitsuhiro Nagashima, Michiya Kibe, Hiroyasu Yamashita, Hironori Nishino, Yusuke Matsukura, Yasuhito Uchiyama
  • OPTICAL SEMICONDUCTOR DEVICE
    Publication number: 20100032552
    Abstract: An optical semiconductor device includes a lower electrode layer formed over a semiconductor substrate, an infrared absorption layer formed over the lower electrode layer 26, and an upper electrode layer 38 formed over the infrared absorption layer 36. The infrared absorption layer includes a quantum dot having dimensions different among directions stacked, and is sensitive to infrared radiation of wavelengths different corresponding to polarization directions.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 11, 2010
    Applicants: TECHNICAL RESEARCH & DEVELOPMENT INSTITUTE MINISTRY OF DEFENSE OF JAPAN, FUJITSU LIMITED
    Inventors: Minoru Doshida, Mitsuhiro Nagashima, Michiya Kibe, Hiroyasu Yamashita, Hironori Nishino, Yusuke Matsukura, Yasuhito Uchiyama