Patents by Inventor Akira Sukurai

Akira Sukurai 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).

  • Surface-emission laser diode operable in the wavelength band of 1.1-7mum and optical telecommunication system using such a laser diode
    Publication number: 20030053501
    Abstract: A surface-emission laser diode includes a distributed Bragg reflector tuned to wavelength of 1.1 &mgr;m or longer, wherein the distributed Bragg reflector includes an alternate repetition of a low-refractive index layer and a high-refractive index layer, with a heterospike buffer layer having an intermediate refractive index interposed therebetween with a thickness in the range of 5-50 nm.
    Type: Application
    Filed: February 26, 2002
    Publication date: March 20, 2003
    Inventors: Takuro Sekiya, Akira Sukurai, Masayoshi Katoh, Teruyuki Furuta, Kazuya Miyagaki, Ken Kanai, Atsuyuki Watada, Shunichi Sato, Koei Suzuki, Satoru Sugawara, Shinji Satoh, Shuuichi Hikichi, Naoto Jikutani, Takashi Takahashi, Akihiro Itoh