Patents by Inventor Yasuji Ogawa

Yasuji Ogawa 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: 10088946
    Abstract: Provided is a coordinate detection device capable of detecting an indicator by either the electromagnetic induction type or the electrostatic capacitance type with a simple configuration and at low cost. The coordinate detection device comprises drive lines 10, detection lines 20, a drive circuit 30, a detection circuit 40, a drive line selection section 50, a detection line selection section 60 and a control section 70. The drive line selection section 50 includes a drive line loop unit 51 end a drive line connection unit 52. The detection line selection section 60 includes a detection line loop unit 61 and a detection line connection unit 62.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: October 2, 2018
    Assignee: XIROKU, INC.
    Inventor: Yasuji Ogawa
  • Publication number: 20170269770
    Abstract: Provided is a coordinate detection device capable of detecting an indicator by either the electromagnetic induction type or the electrostatic capacitance type with a simple configuration and at low cost. The coordinate detection devise comprises drive lines 10, detection lines 20, a drive circuit 30, a detection circuit 40, a drive line selection section 50, a detection line selection section 60 and a control section 70. The drive line selection section 50 includes a drive line loop unit 51 end a drive line connection unit 52. The detection line selection section 60 includes a detection line loop unit 61 and a detection line connection unit 62.
    Type: Application
    Filed: December 24, 2014
    Publication date: September 21, 2017
    Inventor: Yasuji Ogawa
  • Patent number: 8563880
    Abstract: An inexpensively-produced operating tool to which information about the direction of the operating tool or various kinds of identification information can be provided, and in which a switch can be provided. An operating tool (100), which is placed on the detection plane of a conductor detector capable of detecting a conductor by detecting a change in coupling coefficient of loop coil groups crossing each other, comprises a plurality of conductor pieces (102). The conductor piece has, for example, a circular shape, a rectangular shape, or a ring shape. At least a part of the plurality of conductor pieces may be arranged in a predetermined pattern such that the conductor detector can detect the direction of the operating tool.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: October 22, 2013
    Assignee: Newcom, Inc.
    Inventor: Yasuji Ogawa
  • Patent number: 8330726
    Abstract: A position detection apparatus, with which the setting position adjustment of imaging sections is not required and the maintenance can be made easily, structuring of which can be realized with low-cost components, is provided. In the position detection apparatus, imaging sections (7), each of those which includes an area image sensor (70), in which light-sensitive elements are arrayed in a two-dimensional pattern, and an image formation lens (71), are placed to the lateral two points of a detection plane (1), respectively. A selection device (10) selects particular pixels corresponding to a particular field of view of a reflex reflection frame (4) or the like from the light-sensitive elements within a range of a given field of view having been imaged by the imaging sections (7). An image processing device (11) image-processes a particular image signal corresponding to the selected particular pixels and then outputs an indicating position coordinate of a pointing device (2).
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: December 11, 2012
    Assignees: Xiroku, Inc., EIT Co., Ltd.
    Inventors: Yasuji Ogawa, Kenji Tsunezaki
  • Publication number: 20120224054
    Abstract: The optical position detecting device includes a plurality of light source sections, a camera section, a detection section and a control section. Each of the plurality of light source sections emits light to irradiate a predetermined region of the detection surface. The camera section has an angle of view capable of imaging the entire surface of the detection surface and images an image the indicator body irradiated by the light source sections. The detection section calculates an indicated position of the indicator body. The control section is adapted to turn on the plurality of light source sections simultaneously or in a predetermined sequence at time of initial scan and, once the indicated position of the indicator body is detected by the detection section, turns on the light source section irradiating a range covering the detected indicated position of the indicator body but turns off all the remaining light source sections.
    Type: Application
    Filed: July 14, 2010
    Publication date: September 6, 2012
    Applicant: NC3 INC
    Inventor: Yasuji Ogawa
  • Publication number: 20120098746
    Abstract: This invention is to provide an optical position detection apparatus including a retroreflective member (10) and a detection unit (20). The retroreflective member is disposed so as to cover the periphery of the detection area. The detection unit is disposed at one portion of the periphery of the detection area and detects a pointing position of the pointer by using reflection light reflected from the retroreflective member. The detection unit includes two detection sections (21) each having a light source section and camera section. The light source section has an irradiation angle wide enough to irradiate the entire detection area with light. The camera section includes a super-wide-angle lens and an image sensor, is disposed close to the light source section, and has a viewing angle wide enough to image the entire detection area.
    Type: Application
    Filed: April 19, 2010
    Publication date: April 26, 2012
    Inventor: Yasuji Ogawa
  • Publication number: 20120068974
    Abstract: An optical position detection apparatus includes a retroreflective member 10 and a detection unit 20. The retroreflective member 10 is disposed so as to cover two predetermined sides of the perimeter of the detection area 1. The detection unit 20 is disposed adjacent to a corner opposite to the two predetermined sides and detects a pointing position of the pointer by using reflection light reflected from the retroreflective member. The detection unit 20 includes two detection sections 21 each having a light source section that emits light traveling along the surface direction of the detection area and a camera section that images reflection light emitted from the light source section and reflected by the retroreflective member. The light source section has an irradiation angle wide enough to irradiate the two predetermined sides with light, and the camera section is disposed close to the light source section and has a viewing angle wide enough to image the two predetermined sides.
    Type: Application
    Filed: May 21, 2010
    Publication date: March 22, 2012
    Inventor: Yasuji Ogawa
  • Patent number: 8013598
    Abstract: Provided is an object detecting device, which can detect the shape of or the distance from an object made of an electrically conductive or magnetic material, and which can detect the position indicated by an object made of an electrically-non-conductive/non-magnetic material, such as a finger. The object detecting device detects the shape of or the distance from an object to be measured, which is placed on a detection surface and made of an electrically conductive or magnetic material, by using an electromagnetic induction. The object detecting device includes a first loop wire group of a plurality of first loop wires (1) arranged in parallel on the same plane, a second loop wire group of a plurality of second loop wires (2) arranged in parallel on the same plane, and a spacer (3) for keeping the distance between them at a constant. The plurality of the second loop wires (2) are individually arranged in a direction perpendicular to the plurality of the first loop wires (1).
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: September 6, 2011
    Assignee: Newcom, Inc.
    Inventor: Yasuji Ogawa
  • Patent number: 7861605
    Abstract: A pressure distribution sensor utilizing electromagnetic coupling in which alignment of electromagnetically coupled coils is facilitated, and a force in a slip direction can be detected. The pressure distribution sensor utilizing electromagnetic coupling has a detection surface comprises a plurality of first loop wires (1) arranged in parallel on the same plane, a plurality of second loop wires (2) arranged in parallel on the same plane in the direction perpendicular to the first loop wires (1), and a plurality of third loop wires (3) arranged in parallel on the same plane as the first loop wires. The third loop wires (3) are formed to be connectable to a drive section (10) in a separated manner from the first loop wires. The drive section (10) connected to the first loop wires drives the first loop wires, and a detecting section (20) connected to the second loop wires detects pressure from detection signals based on electromagnetic coupling at the electromagnetic coupling portions from the second loop wires.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: January 4, 2011
    Assignee: Newcom, Inc.
    Inventor: Yasuji Ogawa
  • Patent number: 7800362
    Abstract: A pressure distribution detector is less influence by installation environment, that is, a pressure distribution detector that detection sensitivity or detection accuracy is less adversely affected even if the device is fitted not only to a flat surface but also a surface having an arbitrary shape such as a curved surface. The pressure distribution detector comprises a plurality of drive coils (1) provided on a substrate, a plurality of detection coils (2) electromagnetically coupled with the plurality of drive coils in pairs respectively, and a spacer (4) for keeping a constant distance between the plurality of drive coils and the plurality of detection coils, respectively. In order to vary the degree of electromagnetic coupling between the drive coil and the detection coil, a variable electromagnetic coupling (3) formed of a conductor or a magnetic body is provided movably adjacent to the drive coil and/or the detection coil.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: September 21, 2010
    Assignees: Xiroku, Inc., Newcom, Inc.
    Inventor: Yasuji Ogawa
  • Publication number: 20100231207
    Abstract: A pressure distribution detector is less influence by installation environment, that is, a pressure distribution detector that detection sensitivity or detection accuracy is less adversely affected even if the device is fitted not only to a flat surface but also a surface having an arbitrary shape such as a curved surface. The pressure distribution detector comprises a plurality of drive coils (1) provided on a substrate, a plurality of detection coils (2) electromagnetically coupled with the plurality of drive coils in pairs respectively, and a spacer (4) for keeping a constant distance between the plurality of drive coils and the plurality of detection coils, respectively. In order to vary the degree of electromagnetic coupling between the drive coil and the detection coil, a variable electromagnetic coupling (3) formed of a conductor or a magnetic body is provided movably adjacent to the drive coil and/or the detection coil.
    Type: Application
    Filed: December 6, 2006
    Publication date: September 16, 2010
    Inventor: Yasuji Ogawa
  • Patent number: 7703342
    Abstract: There is provided such a pressure distribution detection device that noise affect is small even when the detection region is increased and no line break occurs even when the device is used for a long period of time. The pressure distribution device detects distribution of the pressure applied. The device includes a first loop electrode line group (1), a second loop electrode line group (2) arranged on the first loop electrode line group (1), an elastic body (3) arranged on the second loop electrode line group (2), and a conductive material (4) arranged on the elastic body (3). The first loop electrode lines (1) are arranged in parallel to one another inside a first surface. The second loop electrode line (2) are arranged in parallel to one another within a second surface parallel to the first surface and fixed at a predetermined distance from the first surface. The second loop electrode lines (2) orthogonally intersect the first loop electrode line (1).
    Type: Grant
    Filed: March 26, 2006
    Date of Patent: April 27, 2010
    Assignee: Xiroku, Inc.
    Inventor: Yasuji Ogawa
  • Patent number: 7703341
    Abstract: The object of the present invention is to provide a pressure detecting apparatus that is less affected from noises and can be constructed in a large size. The pressure detecting apparatus according to the present invention utilizes electromagnetic coupling. The sensor section comprises first coils 1, second coils 2 provided on the first coils such that they are superimposed to each other, and a first cushion member 3 provided between the first coils and the second coils. A drive circuit for driving either of the first coils and the second coils and a detection circuit for detecting pressure applied against the sensor section on the basis of signals resulting from electromagnetic coupling from the other of the first coils and the second coils are connected to the sensor section. The sensor sections are disposed in a matrix state so that measurements of pressure distribution can be effected.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: April 27, 2010
    Assignee: Xiroku, Inc.
    Inventor: Yasuji Ogawa
  • Publication number: 20100012396
    Abstract: An inexpensively-produced operating tool to which information about the direction of the operating tool or various kinds of identification information can be provided, and in which a switch can be provided. An operating tool (100), which is placed on the detection plane of a conductor detector capable of detecting a conductor by detecting a change in coupling coefficient of loop coil groups crossing each other, comprises a plurality of conductor pieces (102). The conductor piece has, for example, a circular shape, a rectangular shape, or a ring shape. At least a part of the plurality of conductor pieces may be arranged in a predetermined pattern such that the conductor detector can detect the direction of the operating tool.
    Type: Application
    Filed: January 10, 2007
    Publication date: January 21, 2010
    Inventor: Yasuji Ogawa
  • Publication number: 20100005908
    Abstract: A pressure distribution sensor utilizing electromagnetic coupling in which alignment of electromagnetically coupled coils is facilitated, and a force in a slip direction can be detected. The pressure distribution sensor utilizing electromagnetic coupling has a detection surface comprises a plurality of first loop wires (1) arranged in parallel on the same plane, a plurality of second loop wires (2) arranged in parallel on the same plane in the direction perpendicular to the first loop wires (1), and a plurality of third loop wires (3) arranged in parallel on the same plane as the first loop wires. The third loop wires (3) are formed to be connectable to a drive section (10) in a separated manner from the first loop wires. The drive section (10) connected to the first loop wires drives the first loop wires, and a detecting section (20) connected to the second loop wires detects pressure from detection signals based on electromagnetic coupling at the electromagnetic coupling portions from the second loop wires.
    Type: Application
    Filed: July 3, 2007
    Publication date: January 14, 2010
    Inventor: Yasuji Ogawa
  • Publication number: 20090146654
    Abstract: Provided is an object detecting device, which can detect the shape of or the distance from an object made of an electrically conductive or magnetic material, and which can detect the position indicated by an object made of an electrically-non-conductive/non-magnetic material, such as a finger. The object detecting device detects the shape of or the distance from an object to be measured, which is placed on a detection surface and made of an electrically conductive or magnetic material, by using an electromagnetic induction. The object detecting device includes a first loop wire group of a plurality of first loop wires (1) arranged in parallel on the same plane, a second loop wire group of a plurality of second loop wires (2) arranged in parallel on the same plane, and a spacer (3) for keeping the distance between them at a constant. The plurality of the second loop wires (2) are individually arranged in a direction perpendicular to the plurality of the first loop wires (1).
    Type: Application
    Filed: June 4, 2007
    Publication date: June 11, 2009
    Inventor: Yasuji Ogawa
  • Publication number: 20090078059
    Abstract: There is provided such a pressure distribution detection device that noise affect is small even when the detection region is increased and no line break occurs even when the device is used for a long period of time. The pressure distribution device detects distribution of the pressure applied. The device includes a first loop electrode line group (1), a second loop electrode line group (2) arranged on the first loop electrode line group (1), an elastic body (3) arranged on the second loop electrode line group (2), and a conductive material (4) arranged on the elastic body (3). The first loop electrode lines (1) are arranged in parallel to one another inside a first surface. The second loop electrode line (2) are arranged in parallel to one another within a second surface parallel to the first surface and fixed at a predetermined distance from the first surface. The second loop electrode lines (2) orthogonally intersect the first loop electrode line (1).
    Type: Application
    Filed: March 26, 2006
    Publication date: March 26, 2009
    Inventor: Yasuji Ogawa
  • Patent number: 7477243
    Abstract: A virtual-space shift control apparatus includes a detecting element that detects a touch operation or a drag operation of a pointing device having a plurality of pointing elements, performed on a display screen and a viewpoint-position information generator that generates viewpoint position information of a virtual space image based on the detected touch or drag operation of the detecting element. A three-dimensional image generator is provided that generates data on the virtual space image seen from a viewpoint indicated by the viewpoint position information and outputting a three dimensional image to the display.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: January 13, 2009
    Assignees: EIT Co., Ltd., XIROKU, Inc.
    Inventors: Yasuji Ogawa, Kouki Shimiya, Jun Sakai
  • Patent number: 7414617
    Abstract: A coordinate input device includes a pair of cameras positioned in an upper left position and an upper right position of a display screen of a monitor lying close to a plane extending from the display screen of the monitor and views both a side face of an object in contact with a position on the display screen and a predetermined desk-top coordinate detection area to capture the image of the object with the field of view. The coordinate input device also included a control circuit which calculates the coordinate value of a pointing tool, pointing to a position within a coordinate detection field, based on video signals output from the pair of cameras, and transfers the coordinate value to a program of a computer.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: August 19, 2008
    Assignees: EIT Co., Ltd., Xiroku Inc.
    Inventor: Yasuji Ogawa
  • Publication number: 20070214897
    Abstract: The object of the present invention is to provide a pressure detecting apparatus that is less affected from noises and can be constructed in a large size. The pressure detecting apparatus according to the present invention utilizes electromagnetic coupling. The sensor section comprises first coils 1, second coils 2 provided on the first coils such that they are superimposed to each other, and a first cushion member 3 provided between the first coils and the second coils. A drive circuit for driving either of the first coils and the second coils and a detection circuit for detecting pressure applied against the sensor section on the basis of signals resulting from electromagnetic coupling from the other of the first coils and the second coils are connected to the sensor section. The sensor sections are disposed in a matrix state so that measurements of pressure distribution can be effected.
    Type: Application
    Filed: November 5, 2004
    Publication date: September 20, 2007
    Inventor: Yasuji Ogawa