Patents by Inventor Keiji Tamai

Keiji Tamai 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).

  • Apparatus having shake correction function
    Patent number: 6067420
    Abstract: A mode setter 92 causes a shake sensor controller 43 and a shake amount detector 51 to execute a routine of low-speed control when the switch S1 is ON, and a routine of high-speed control when the switch S2 is ON. A display signal generator 121 generates a display signal based on the shake amounts obtained through a prescribed number of detections by the shake amount detector 51. A display 122 has multiple types of LEDs that illuminate in response to a display signal generated by the display signal generator 121 when the switch S1 is ON.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: May 23, 2000
    Assignee: Minolta Co., Ltd.
    Inventors: Yoshihiro Hara, Keiji Tamai, Tomonori Satoh
  • Camera capable of shake correction
    Patent number: 6044228
    Abstract: A camera capable of shake correction, and is provided with: a sensor for sensing a light image of an object to detect a camera shake; an exposure time setter for setting a first exposure time based on a brightness of an object and a second exposure time smaller than the first exposure time; and a controller for judging as to whether the shake correction is disable, and controlling exposure with reference to the second exposure time when the shake correction is judged to be disable.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: March 28, 2000
    Assignee: Minolta Co., Ltd.
    Inventors: Yoshihiro Hara, Tomonori Satoh, Keiji Tamai, Junji Sato
  • Camera
    Patent number: 5966549
    Abstract: A camera having a substitute shake amount calculator 51e that, where flash light is emitted while integration is being performed by a shake sensor, seeks a substitute shake amount using past shake amounts stored in a memory 56 instead of the shake amount sought from the image data obtained during this integration period.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: October 12, 1999
    Assignee: Minolta Co., Ltd.
    Inventors: Yoshihiro Hara, Keiji Tamai, Tomonori Satoh
  • Camera having a blur detecting device
    Patent number: 5262820
    Abstract: In the disclosed invention, a camera has a blur detecting device which detects a possible blurring of a photograph in plural areas of an objective field through the use of image sensors such as CCDs. One of the plural areas is selected for detecting a blur therein. With this approach, a possible blur can be precisely detected at whichever location the main object of the scene to be photographed may exist within an objective field.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: November 16, 1993
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Keiji Tamai, Masataka Hamada