Patents by Inventor Hiroaki Sakagawa

Hiroaki Sakagawa 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).

  • Electronic mail advertisement system, method, and program storage medium
    Publication number: 20020091570
    Abstract: A system is provided in which a person who has accessed an advertisement can be identified on the server side. In a system that provides a service which reduces a charge for the user who has accessed an advertisement added to a received electronic mail, the server on the network adds address information including a server address, identification information and advertisement address to the mail when it sends the mail to the mail recipient.
    Type: Application
    Filed: November 28, 2001
    Publication date: July 11, 2002
    Inventor: Hiroaki Sakagawa
  • Motor vehicle combination lamp
    Patent number: 4868725
    Abstract: A combination lamp in which the lamps forming the combination lamp emit respective red and amber colors as required by applicable official regulations when turned on, but in which the entire combination lamp appears amber when the lamps are turned off, thereby improving the external appearance of the lamp. The combination lamp includes a lamp for emitting red light and a lamp for emitting amber light in which the outer lens of the lamp for emitting red light is colored amber and the inner lens thereof is colored red.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: September 19, 1989
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Hiroaki Sakagawa, Hideaki Satsukawa