Patents by Inventor Yuuji Hishida

Yuuji Hishida 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).

  • Nitride semiconductor laser element
    Publication number: 20060011946
    Abstract: A nitride semiconductor laser element capable of controlling the lateral confinement of light with a good reproducibility, the nitride semiconductor element comprising an n-type cladding layer (3), an MQW light emitting layer (4) formed on the cladding layer (3), a p-type cladding layer (5) and a p-type contact layer (6) formed on the light emitting layer (4), and an ion implantation light absorbing layer (7) formed, by introducing carbon, in regions other than a current passing region (8) in the cladding layer (5) and the contact layer (6).
    Type: Application
    Filed: February 28, 2003
    Publication date: January 19, 2006
    Inventors: Tadao Toda, Tsutomu Yamaguchi, Masayuki Hata, Yasuhiko Nomura, Masayuki Shouno, Yuuji Hishida, Keiichi Yodoshi, Daijiro Inoue, Takashi Kano, Nobuhiko Hayashi