Patents by Inventor Kenitiro Hashimoto

Kenitiro Hashimoto 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 amount control apparatus and projector apparatus using the same
    Patent number: 7182470
    Abstract: A light amount control apparatus includes a pair of light amount control plates arranged at side edge portions of a light path, a driving device having a drive rotating shaft, and a transmitting member for transmitting rotation of the drive rotating shaft to the light amount control plates. The light amount control plates are supported by the rotating support shafts at two side edges of the light path to pivot in an advancing direction of the light path. The drive rotating shaft is arranged substantially parallel to the rotating support shafts. A transmitting member includes a first gear assembly connected to the drive rotating shaft, and a second gear assembly rotated in a direction reverse thereto. One light amount control plate is fixedly supported by the first gear assembly, and the other light amount control plate is fixedly supported by the second gear assembly.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: February 27, 2007
    Assignee: Nisca Corporation
    Inventors: Kenitiro Hashimoto, Yukihiko Hayakawa
  • Light amount control apparatus and projector apparatus using the same
    Publication number: 20060050249
    Abstract: A light amount control apparatus includes a pair of light amount control plates arranged at side edge portions of a light path, a driving device having a drive rotating shaft, and a transmitting member for transmitting rotation of the drive rotating shaft to the light amount control plates. The light amount control plates are supported by the rotating support shafts at two side edges of the light path to pivot in an advancing direction of the light path. The drive rotating shaft is arranged substantially parallel to the rotating support shafts. A transmitting member includes a first gear assembly connected to the drive rotating shaft, and a second gear assembly rotated in a direction reverse thereto. One light amount control plate is fixedly supported by the first gear assembly, and the other light amount control plate is fixedly supported by the second gear assembly.
    Type: Application
    Filed: March 18, 2005
    Publication date: March 9, 2006
    Applicant: NISCA CORPORATION
    Inventors: Kenitiro Hashimoto, Yukihiko Hayakawa