Patents by Inventor Kazuhiko Takahashi
Kazuhiko Takahashi 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).
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Patent number: 8624462Abstract: A rotating electrical machine includes: a rotor comprising a rotor core and a field winding wound round the rotor core; and a stator comprising a stator core and a stator winding wound round the stator core. The stator is arranged in opposition to the rotor with a predetermined spacing therebetween. the stator core is formed by punching a split piece, which comprises teeth for insertion of the stator winding thereinto and a core back on an outer periphery thereof, from a magnetic steel sheet, and laminating a plurality of those circular configurations in an axial direction, in which a plurality of the split pieces are arranged in a circle in a circumferential direction. The stator core has magnetic steel sheets, which are different in magnetic permeability in a diametrical direction, laminated at an axial end region of and in an axial central region of the stator core.Type: GrantFiled: April 23, 2009Date of Patent: January 7, 2014Assignee: Hitachi, Ltd.Inventors: Akihito Nakahara, Hiroyuki Mikami, Kazumasa Ide, Kazuhiko Takahashi, Kenichi Hattori
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Publication number: 20140001198Abstract: A drawer 72 includes a coin container receiving unit 74 and a plurality of types of coin containers 76a, 76b having different shapes, each of the coin containers 76a, 76b can be placed in the coin container receiving unit 74, and wherein a number of the coin containers 76a, 76b installed in the drawer 72 is changeable according to a combination of the types of the coin containers 76a, 76b placed in the coin container receiving unit 74.Type: ApplicationFiled: June 26, 2013Publication date: January 2, 2014Inventors: Tatsuo NAGOYA, Kazuhiko TAKAHASHI, Kenichiro AKITA
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Publication number: 20130329032Abstract: A fundus camera having an autofocus function which automatically drives a focus lens, the camera includes a general-purpose digital camera having a live view function, an acquisition unit which acquires a live view image captured by the general-purpose digital camera, and a control unit which drives the focus lens based on the live view image.Type: ApplicationFiled: May 30, 2013Publication date: December 12, 2013Inventor: Kazuhiko Takahashi
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Patent number: 8602968Abstract: When an operation instruction is input by a first (second) control output instruction input device, locus calculation means calculates a locus of movement of a first (second) therapeutic device on the basis of any one of joint sections, which is instructed to operate. On the basis of a calculation result by the locus calculation means, therapeutic device operation control means controls an operation of the first (second) therapeutic device by a first (second) active mechanism. Thereby, there is provided an endoscope apparatus which can improve the operational efficiency and positional precision of the therapeutic device.Type: GrantFiled: September 15, 2009Date of Patent: December 10, 2013Assignee: Olympus Medical Systems Corp.Inventors: Yoshitaka Umemoto, Kazuhiko Takahashi, Tetsuo Nonami
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Patent number: 8568295Abstract: An endoscope system includes at least an endoscope of the endoscope and an accessory, a placement unit on which the endoscope is adapted to be placed, a detecting unit configured to detect whether the endoscope is placed on the placement unit or not, an actuating unit for at least one of the endoscope and the accessory, an operating unit for operating the actuating unit, and a control unit configured to be switched between a normal mode wherein the actuating unit is controlled according to an operation to the operating unit and a restricting mode wherein the actuating unit is controlled regardless of an operation to the operating unit, on the basis of a result of detection by the detecting unit.Type: GrantFiled: August 14, 2009Date of Patent: October 29, 2013Assignee: Olympus Medical Systems Corp.Inventors: Yoshitaka Umemoto, Kazuhiko Takahashi
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Publication number: 20130201309Abstract: An endoscope includes a bending operation knob inputting a bending operation of a bending section in first perpendicular directions, a touch surface which is exposed in an outer surface of a grip casing and on which a bending operation of the bending section in second perpendicular directions is input, and a positional information calculator calculating a positional information of a touched region with time, the touched region being a region that is touched in the touch surface. The endoscope includes a positional change detector detecting a positional change of the touched region when the bending operation of the bending section in the second perpendicular directions is input, and a drive controller controlling a drive state of a drive member in accordance with the positional change of the touched region.Type: ApplicationFiled: January 23, 2013Publication date: August 8, 2013Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventor: Kazuhiko TAKAHASHI
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Medical device system for determining contact between first medical device and second medical device
Patent number: 8454592Abstract: The medical device system includes: first and second medical devices that are used in the body cavity and surfaces of which have conductivity; a first electrode electrically connected to the surface of the first medical device; a second electrode electrically connected to the surface of the second medical device; a resistance measuring unit for measuring an inter-device resistance value between the first electrode and the second electrode; a threshold storing unit for storing a predetermined lower limit threshold of the inter-device resistance value; a determining unit for determining, when the inter-device resistance value is lower than the inter-device resistance threshold, that the first medical device and the second medical device come into contact with each other; and a warning generating unit for generating a warning.Type: GrantFiled: March 11, 2010Date of Patent: June 4, 2013Assignee: Olympus Medical Systems Corp.Inventors: Yuta Sugiyama, Kazuhiko Takahashi -
Patent number: 8391577Abstract: A radiation image processing apparatus which improves contrast and sharpness of radiation images is provided. According to this radiation image processing apparatus, comparison is made between a first image data obtained by radiation imaging without going through the subject but through a grid for removing scattered radiation from a subject, and a second image data which is obtained by radiation imaging through the subject and the grid, and a two-dimensional distribution of abundance of scattered component is calculated. Using this two-dimensional distribution of scattered component, abundance of scattered radiation is locally determined at each position, and a sharpening process is performed with sharpening intensities that are increased in response to abundance of scattered radiation.Type: GrantFiled: October 16, 2009Date of Patent: March 5, 2013Assignee: Canon Kabushiki KaishaInventor: Kazuhiko Takahashi
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Patent number: 8388605Abstract: A medical device system includes a manipulator including a plurality of joints, a parameter storing portion for storing joint parameters, including a largest available force, of each joint of the plurality of joints, a trajectory inputting portion for inputting, as a trajectory plan, trajectories for moving a distal end of the manipulator from a current position and attitude to a target position and attitude, a trajectory setting portion for setting a joint angle trajectory for each joint providing a largest available force from among joint angle trajectories which allow movement to the target position and attitude with a minimum number of driven joints based on a largest available force parameter for the each joint stored in the parameter storing portion and the trajectory plan.Type: GrantFiled: October 29, 2008Date of Patent: March 5, 2013Assignee: Olympus Medical Systems Corp.Inventors: Yoshitaka Umemoto, Kazuhiko Takahashi, Tetsuo Nonami
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Patent number: 8376934Abstract: A multijoint manipulator apparatus includes a tubular-member, linear-motion-transmission-members, a drive-unit, a position-detector, a tension-detector, an operation-unit, and a movement-degree-calculation-unit. The linear-members are inserted in the tubular-member, one end and the other end of each of the linear-members being fixed to the vicinity of a joint of the tubular-member and the drive-unit, respectively. The drive-unit moves the linear-members. The position-detector and the tension-detector detect positions and tension of the linear-members, respectively. A desired position/posture of a point of interest is input to the operation-unit. The calculation-unit calculates a current position/posture of the point, a weighting factor serving to give priority to and move the linear-members the tension of which is relatively low among the linear-members, and movement degrees of the linear-members to move the point to the desired position/posture, and causes the drive-unit to pull the linear-members.Type: GrantFiled: April 22, 2011Date of Patent: February 19, 2013Assignee: Olympus Medical Systems Corp.Inventors: Kazuhiko Takahashi, Toshio Nakamura
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Publication number: 20130039668Abstract: An image forming apparatus includes an information rewrite unit that rewrites information stored in a storage if an empty detector detects that a toner container is empty and the toner container is at least allowed to be released, and then if the empty detector detects that the toner container is not empty.Type: ApplicationFiled: February 22, 2012Publication date: February 14, 2013Applicant: FUJI XEROX CO., LTD.Inventor: Kazuhiko TAKAHASHI
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Patent number: 8304953Abstract: A rotating electrical machine includes: a rotor comprising a rotor core and a field winding wound round the rotor core; and a stator comprising a stator core and a stator winding wound round the stator core. The stator is arranged in opposition to the rotor with a predetermined spacing therebetween. the stator core is formed by punching a split piece, which comprises teeth for insertion of the stator winding thereinto and a core back on an outer periphery thereof, from a magnetic steel sheet, and laminating a plurality of those circular configurations in an axial direction, in which a plurality of the split pieces are arranged in a circle in a circumferential direction. The stator core has magnetic steel sheets, which are different in magnetic permeability in a diametrical direction, laminated at an axial end region of and in an axial central region of the stator core.Type: GrantFiled: February 25, 2011Date of Patent: November 6, 2012Assignee: Hitachi, Ltd.Inventors: Akihito Nakahara, Hiroyuki Mikami, Kazumasa Ide, Kazuhiko Takahashi, Kenichi Hattori
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Patent number: 8206382Abstract: A surgical apparatus has a surgical instrument to treat a diseased part of a patient. An energy supply unit supplies energy for driving the surgical instrument. A sensor obtains information about states of the surgical instrument. An energy change detector detects whether magnitude of energy supplied to the surgical instrument is changed or not. A control unit controls driving of the sensor, based on a result of detection by the energy change detector.Type: GrantFiled: September 18, 2008Date of Patent: June 26, 2012Assignee: Olympus Medical Systems Corp.Inventor: Kazuhiko Takahashi
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Patent number: 8194824Abstract: A radiation imaging apparatus irradiates a subject with a radioactive ray emitted from a radiation generation unit to capture a radiographic image based on a radioactive ray that has penetrated through the subject. The radiation imaging apparatus includes a histogram calculation unit configured to calculate a histogram resulting from pixel values of the radiographic image, and a radiation irradiation condition determination unit configured to determine radiation irradiation conditions for a radioactive ray to be emitted from the radiation generation unit in such a way as to flatten a distribution of the histogram.Type: GrantFiled: May 7, 2009Date of Patent: June 5, 2012Assignee: Canon Kabushiki KaishaInventor: Kazuhiko Takahashi
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Patent number: 8187169Abstract: A medical apparatus includes a first medical device, a second medical device, an integrated inputting device, and an integrated control device. The first medical device includes an insertion portion having a bending portion that is bent by a first driving portion and a first control device controlling the first driving portion. The second medical device includes an external force applying portion applying an external force to the insertion portion, a second driving portion allowing the external force applying portion to be operated, and a second control device controlling the second driving portion. The integrated inputting device instructs a distal end of the insertion portion to be moved to a target position or a target posture or in a target direction. Integrated control device controls at least one of the first driving portion and the second driving portion on the basis of an instruction from the integrated inputting device.Type: GrantFiled: October 24, 2008Date of Patent: May 29, 2012Assignee: Olympus Medical Systems Corp.Inventors: Yuta Sugiyama, Kazuhiko Takahashi
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Patent number: 8174156Abstract: A rotating electrical machine includes: a rotor comprising a rotor core and a field winding wound round the rotor core; and a stator comprising a stator core and a stator winding wound round the stator core. The stator is arranged in opposition to the rotor with a predetermined spacing therebetween. the stator core is formed by punching a split piece, which comprises teeth for insertion of the stator winding thereinto and a core back on an outer periphery thereof, from a magnetic steel sheet, and laminating a plurality of those circular configurations in an axial direction, in which a plurality of the split pieces are arranged in a circle in a circumferential direction. The stator core has magnetic steel sheets, which are different in magnetic permeability in a diametrical direction, laminated at an axial end region of and in an axial central region of the stator core.Type: GrantFiled: February 25, 2011Date of Patent: May 8, 2012Assignee: Hitachi, Ltd.Inventors: Akihito Nakahara, Hiroyuki Mikami, Kazumasa Ide, Kazuhiko Takahashi, Kenichi Hattori
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Publication number: 20120069048Abstract: A medical image handling system includes a monitor for displaying a medical image, an input device for inputting an image reading report corresponding to the medical image displayed on the monitor, and a processor. The processor judges the presence or absence of an image reading report corresponding to the medical image displayed on the monitor, and restricts a change of the medical image in a case where the image reading report is judged as being absent.Type: ApplicationFiled: November 15, 2011Publication date: March 22, 2012Applicant: CANON KABUSHIKI KAISHAInventors: KOJI TAKEKOSHI, AKIRA TAGO, MAKOTO SATO, KEIICHI SAKAI, TSUKASA SAKO, KAZUHIKO TAKAHASHI, MULING GUO
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Publication number: 20120043863Abstract: In an electrical machinery and apparatus, a storage space is formed along an extension direction of a strand, and a temperature sensor is installed in the storage space of the strand, so that temperature of the strand can be immediately measured, and no pressure is applied to the temperature sensor in the process of forming a ground wall insulation thereby the temperature of the strand can be accurately measured.Type: ApplicationFiled: August 5, 2011Publication date: February 23, 2012Applicant: Hitachi, Ltd.Inventors: Kazuhiko Takahashi, Kengo Iwashige, Kenichi Hattori, Yukihiro Yamamoto, Yasunori Satake, Takayasu Tanaka, Toru Muto, Seiichi Sawada, Yasuaki Kageyama
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Publication number: 20110295063Abstract: A medical system includes a movable portion configured to allow an angle to be changed within a predetermined angular range, an actuator configured to drive the movable portion so as to change the angle of the movable portion when a wire is pulled, a control unit configured to perform drive control of the actuator, a slack detection unit configured to detect a driving condition as to whether or not the wire is slack, a slack adjustment unit configured to adjust slack of the wire based on a detection result produced by the slack detection unit; and a slack adjustment command input unit used to input a command to adjust the slack of the wire, wherein the slack adjustment unit adjusts the slack of the wire to a predetermined state of adjustment in response to the command to adjust the slack of the wire.Type: ApplicationFiled: June 7, 2011Publication date: December 1, 2011Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka UMEMOTO, Kazuhiko TAKAHASHI
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Publication number: 20110288371Abstract: An endoscope device includes a treatment instrument, the treatment instrument including a treatment instrument body, a distal treatment portion provided in a distal direction side to the treatment instrument body, and a rotary joint portion configured to rotate the distal treatment portion around an axis relative to the treatment instrument body, and an inner peripheral surface which is provided in the endoscope or in a tubular member separate from the endoscope and which defines a treatment instrument insertion passage to insert the treatment instrument. The endoscope device includes a frictional force application portion configured to apply frictional force to a contact portion between a distal direction side part of the inner peripheral surface and an outer peripheral surface in a distal direction side part of the treatment instrument body when the treatment instrument body is rotated around the axis relative to the endoscope.Type: ApplicationFiled: June 16, 2011Publication date: November 24, 2011Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventor: Kazuhiko TAKAHASHI