Patents by Inventor William Otani

William Otani 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).

  • Light scattering measuring apparatus utilizing a photodetector mounted on a rotary stand
    Patent number: 5113083
    Abstract: A rotary stand (11) having a half-mirror (8) and a photodetector (10) mounted thereon, is continuously rotated around a first rotary shaft (A) passing through a sample (S), and set to a predetermined scattering angle. Simultaneously, a rotary reflecting mirror (7) is rotated at a predetermined angle to direct a reference li8ght (LR) to the half-mirror (8) at all times. The half-mirror (8) is also rotated at its own axis at a predetermined angle so that the direction of a scattering light (LS) at the light emitting side of the half-mirror (8) is identical with the direction of the reference lilght (LR). Accordingly, the reference light may be composed with the scattered light at an arbitrary scattering angle, enabling observation of the Doppler shift in the scattered light direction (FIG. 1).
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: May 12, 1992
    Assignee: Otsuka Electronics Co., Ltd.
    Inventors: Koichi Oka, William Otani, Yasuhiro Kubo, Yasushi Zasu, Motonobu Akagi