Patents by Inventor Yuuichi Masaki

Yuuichi Masaki 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).

  • Pin photodiode and method of fabrication of the same
    Patent number: 4885622
    Abstract: A PIN photodiode is composed of a lower electrode deposited on a substrate, a photoelectric transducer of PIN construction deposited on the lower electrode, and an upper electrode deposited on the photoelectric transducer. A method of fabricating the PIN photodiode is also disclosed. All of electron-and-hole pairs generated in the photoelectric transducer in response to application of light are biased by the lower and upper electrodes. These electron-and-hole pairs are quickly picked up as a current between the electrodes for detecting the light falling on the PIN photodiode.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: December 5, 1989
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Akira Uchiyama, Yuuichi Masaki, Toshiyuki Iwabuchi, Tsutomu Nomoto, Masaaki Sakamoto