Patents by Inventor Bill On

Bill On 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).

  • Patent number: 4998257
    Abstract: A semiconductor laser driving apparatus wherein an irradiating energy of a semiconductor laser is adjusetd multi-stepwise by varying the irradiating time within the maximum irradiating time while maintaining at a constant value the optical output when the irradiating energy is lower than a predetermined value, whereas the irradiating energy is adjusted multi-stepwise by increasing the optical output more than the constant value while fixing the irradiating time to the maximum irradiating time when the irradiating energy is higher than the predetermined value.
    Type: Grant
    Filed: March 7, 1990
    Date of Patent: March 5, 1991
    Assignee: Konica Corporation
    Inventors: Bill On, Shinsuke Funaki