Patents by Inventor Seiichi Mizui

Seiichi Mizui 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: 7283810
    Abstract: Communications are performed between a mobile unit and a terminal device. The mobile unit is provided with a communication device that is capable of communicating with the terminal device if it is connected electrically with a power supply. When an engine key switch signal is off, the electrical connection between the power supply and the communication device is turned on and off intermittently.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: October 16, 2007
    Assignee: Komatsu Ltd.
    Inventors: Shuji Arakawa, Seiichi Mizui, Seiji Kamada, Yoshio Asayama, Noriaki Abe
  • Patent number: 7149530
    Abstract: A device for presenting information on a mobile includes mobiles and terminals interconnected intercommunicably through communication means, wherein a terminal transmits, to the mobile concerned, mobile identification data on a mobile to which a request for mobile information is to be made, request content identification data representing the contents of mobile information to be requested, and terminal identification data on the terminal being the presentee to which the requested contents is to be presented. The mobile acquires mobile information requested by the terminal and sends it to the terminal being the presentee. The stored contents in storage means is updated each time operation of input for requesting information from a mobile is made through the terminal and the mobile acquires new mobile information. The updated stored contents is transmitted to the terminal being the requester when the terminal requests the updated stored contents.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: December 12, 2006
    Assignee: Komatsu Ltd.
    Inventors: Shuji Arakawa, Seiichi Mizui, Seiji Kamada, Yoshio Asayama, Noriaki Abe
  • Patent number: 7110728
    Abstract: An object of the present invention is to avoid communication congestion by varying the transmission times of a plurality of mobile bodies while maintaining standardization in the software to be installed in the plurality of mobile bodies. A detection is made in a plurality of vehicles 31, 32, 33 . . . that a specific event has occurred in a vehicle, for example a communication terminal 56 has been installed, or in other words power from a power source 63 has been applied to the communication terminal 56. The power application time is then measured by a calendar and timer in the interior of the vehicle. An individual automatic transmission time for each vehicle is then set with the power application time of the vehicle as a reference.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: September 19, 2006
    Assignee: Komatsu Ltd.
    Inventors: Seiichi Mizui, Seiji Kamada
  • Publication number: 20040198254
    Abstract: An object of the present invention is to avoid communication congestion by varying the transmission times of a plurality of mobile bodies while maintaining standardization in the software to be installed in the plurality of mobile bodies. A detection is made in a plurality of vehicles 31, 32, 33 . . . that a specific event has occurred in a vehicle, for example a communication terminal 56 has been installed, or in other words power from a power source 63 has been applied to the communication terminal 56. The power application time is then measured by a calendar and timer in the interior of the vehicle. An individual automatic transmission time for each vehicle is then set with the power application time of the vehicle as a reference.
    Type: Application
    Filed: January 23, 2003
    Publication date: October 7, 2004
    Inventors: Seiichi Mizui, Seiji Kamada
  • Patent number: 6487303
    Abstract: In the device according to the present invention, it is possible readily to distinguish between a road of travel and an obstacle in an image, simply using a distance image, even in cases where such a distinction is difficult to make, for instance, when a moving body is inclined during travel or the road forms a slope. Three-dimensional co-ordinate position data in a three-dimensional co-ordinate system is calculated for each pixel of the distance image, on the basis of two-dimensional co-ordinate position data for each pixel in the distance image and distance data from a reference position for each of the pixels, in such a manner that a three-dimensional distribution of pixels corresponding to a plane and an object to be detected is generated.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: November 26, 2002
    Assignee: Komatsu Ltd.
    Inventors: Hiroyoshi Yamaguchi, Tetsuya Shinbo, Osamu Yoshimi, Seiichi Mizui
  • Patent number: 6201883
    Abstract: A topography measuring device which comprises a visual camera mounted on a vehicle for measuring a distance to subject topographical features to be measured; an absolute position detecting unit mounted on the vehicle for detecting a three-dimensional absolute position of the vehicle; a topographical coordinate measuring unit for determining three-dimensional position data on the subject topographical features of a vehicle coordinate system based on the image pickup data by the visual camera; a coordinate conversion unit for converting the three-dimensional position data on the subject topographical features of the vehicle coordinate system determined by the topographical coordinate measuring unit using detected data of the absolute position detecting unit into three-dimensional position data of an absolute coordinate system; an image pickup position instructing unit for instructing the vehicle on a plurality of different vehicle positions for taking the images of the subject topographical features by the imag
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: March 13, 2001
    Assignee: Komatsu Ltd.
    Inventor: Seiichi Mizui
  • Patent number: 5901236
    Abstract: An object whose position is to be measured is provided with a light-emitting element, the luminance of the light-emitting element is varied in two levels (lit/extinguished) with a prescribed period, images of four consecutive frames are successively acquired, one frame being an image picked up in a time of 1/4 of the period of this variation of luminance, of the four consecutive frames, a first difference image of the first frame and third frame and a second difference image of the second frame and fourth frame are acquired, and, of the first difference image and second difference image, the difference image of greatest lightness is selected. This selected difference image is always the difference image between the image during the lit period of the light-emitting element and the image during the extinguished period.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: May 4, 1999
    Assignee: Komatsu Ltd.
    Inventor: Seiichi Mizui
  • Patent number: 5832730
    Abstract: A device and method for suppressing vibration of a working machine in which residual vibration produced immediately after an operation is completed can be suppressed well without degrading the response. The device comprises a working machine acceleration detecting means (11H, 11B), a lever turning degree coefficient calculating means (17) for calculating coefficient in accordance with a lever turning degree, an acceleration compensating value operating means (13) for performing an operation from the acting force calculated from the acceleration of the working machine and a lever turning degree coefficient, and a feedback command means (18) for calculating an acceleration feedback command value from an acceleration compensating value and a lever operation command value and for outputting the acceleration feedback command value to electromagnetic proportional pressure control valves (22, 23).
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: November 10, 1998
    Assignee: Komatsu Ltd.
    Inventor: Seiichi Mizui
  • Patent number: 5732835
    Abstract: An object of this invention is to improve safety in a crane. A boom control signal .alpha.r and a winch control signal .beta.r are simultaneously outputted to, respectively, a boom drive portion and a winch drive portion of a driving portion 30 for obtaining, respectively, target values Xr, Yr, with current working radius X and lift Y that vary according to the flexure of boom 4 as feedback amounts, thereby a boom hoisting angle and a rope length being controlled simultaneously.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: March 31, 1998
    Assignee: Komatsu Ltd.
    Inventors: Tadashi Morita, Seiichi Mizui