Patents by Inventor Takafumi Kasuga
Takafumi Kasuga 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: 11761520Abstract: In a linear drive device, a movable member is driven using a guide shaft and a lead screw supported by a bracket. Since a nut mechanism, which with the lead screw configures a feed screw mechanism, is provided with a first spring between two nuts, it is possible to limit rattling of the nuts with respect to the lead screw. Of the two nuts, the first nut provided on the side opposite a motor and a first plate is not able to move relative to the movable member in the axis direction. As a result, when a member to be driven is loaded on the movable member and the movable member is driven in the direction approaching the first plate, the first plate and members disposed therearound are not susceptible to interference by the member being driven.Type: GrantFiled: November 7, 2017Date of Patent: September 19, 2023Assignee: Continental Automotive Technologies GmbHInventors: Takanori Ohkawa, Hiroyuki Hatasako, Takafumi Kasuga, Takahisa Ueki, Ulrich Kolloch
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Patent number: 11003922Abstract: A control unit (21) determines an allocation rate of computational resources to be allocated to each of a plurality of sensing processes of analyzing sensor data output from a plurality of sensors that observe an area around a moving body (100), based on a moving environment of the moving body (100), such as the type of a road where the moving body (100) travels, behavior of the moving body (100), and visibility from the moving body (100). A detection unit (22) detects an object in the area around the moving body (100) by using, for a corresponding sensing process, computational resources of an allocated amount specified based on the allocation rate determined by the control unit (21).Type: GrantFiled: April 20, 2016Date of Patent: May 11, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventor: Takafumi Kasuga
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Publication number: 20210001883Abstract: An action selection device (10) includes an action selection unit (22). The action selection unit (22) acquires from a memory (30), an action list (31) in which a requirement recognition area is associated with each action of a plurality of actions, the requirement recognition area indicating an area for which recognition by a sensor is required. The action selection unit (22) acquires from a peripheral recognition device (53), a recognition area (53a) recognized by sensors (53-1) that the peripheral recognition device (53) has. The action selection unit (22) selects from the action list (31), an action associated with the requirement recognition area included in the recognition area (53a).Type: ApplicationFiled: September 23, 2020Publication date: January 7, 2021Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takafumi KASUGA, Masahiko TANIMOTO, Takayuki SAWAMI, Yosuke ISHIWATARI
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Publication number: 20200271930Abstract: A drive device includes a drive unit, a lead screw rotationally driven by the drive unit, and a movable member being moved by a driving force of the drive unit. The movable member includes a main body unit, a driving force transmitting unit configured to transmit a driving force of the drive unit to the main body unit, and preload applying units provided separately from the main body unit. The driving force transmitting unit includes a first thread unit to be screwed together with the lead screw and moves the main body unit in an axis direction of the lead screw with a rotation of the lead screw, and the preload applying units include a second thread unit to be screwed together with the lead screw and apply a preload between the first thread unit and the second thread unit.Type: ApplicationFiled: July 23, 2018Publication date: August 27, 2020Applicant: NIDEC SANKYO CORPORATIONInventors: Hiroyuki HATASAKO, Takanori OHKAWA, Takafumi KASUGA, Takahisa UEKI
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Publication number: 20200274419Abstract: To provide a motor in which a coil wire of a drive coil is prevented from breaking or being damaged. A motor includes: a motor case including an opening unit formed therein and housing a drive coil; a frame attached to the motor case; a substrate holding member fixed to the frame; and a power supply substrate held by the substrate holding member. In the motor, a coil wire of the drive coil is led out through the opening unit and is electrically connected to the power supply substrate.Type: ApplicationFiled: July 23, 2018Publication date: August 27, 2020Applicant: NIDEC SANKYO CORPORATIONInventors: Hiroyuki HATASAKO, Hidekazu YONEYAMA, Takafumi KASUGA, Takahisa UEKI
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Publication number: 20200241297Abstract: A drive device used in a head-up display device, the drive device being accommodated in a housing of the head-up display device and being fixed to the housing. The drive device includes a motor having a rotation shaft and a motor case having an end face through which the rotation shaft is protruded, a vibration suppressing member, and a frame provided with a first plate part having a through hole and a second plate part extended from the first plate part. The motor is fixed to the first plate part in a state that the rotation shaft is penetrated through the through hole and the end face is contacted with the first plate part, the vibration suppressing member is fixed to the first plate part or the motor case, and the second plate part is provided with a frame side fixed part which is to be fixed to the housing.Type: ApplicationFiled: January 15, 2020Publication date: July 30, 2020Applicant: NIDEC SANKYO CORPORATIONInventors: Hiroyuki HATASAKO, Takanori OHKAWA, Takafumi KASUGA, Takahisa UEKI, Ken NOGUCHI, Masahiro WATANABE, Daiki FUNAMI
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Publication number: 20200183164Abstract: A drive device includes a drive part and a movable member structured to be moved by the drive part. The movable member includes a main body part and a support part which supports a supported member. The support part includes an elastic support part which urges the supported member and a fixed support part which is provided so as to face the elastic support part in a moving direction of the movable member and supports the supported member urged by the elastic support part. The elastic support part includes an elastic support part side protruded part which is a convex curved face protruded to a side to be abutted with the supported member, and the fixed support part includes a fixed support part side protruded part which is a convex curved face protruded to a side to be abutted with the supported member.Type: ApplicationFiled: December 4, 2019Publication date: June 11, 2020Applicant: NIDEC SANKYO CORPORATIONInventors: Takafumi KASUGA, Hiroyuki HATASAKO, Takahisa UEKI
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Publication number: 20190346028Abstract: In a linear drive device, a movable member is driven using a guide shaft and a lead screw supported by a bracket. Since a nut mechanism, which with the lead screw configures a feed screw mechanism, is provided with a first spring between two nuts, it is possible to limit rattling of the nuts with respect to the lead screw. Of the two nuts, the first nut provided on the side opposite a motor and a first plate is not able to move relative to the movable member in the axis direction. As a result, when a member to be driven is loaded on the movable member and the movable member is driven in the direction approaching the first plate, the first plate and members disposed therearound are not susceptible to interference by the member being driven.Type: ApplicationFiled: November 7, 2017Publication date: November 14, 2019Applicants: Continental Automotive GmbH, NIDEC SANKYO CORPORATIONInventors: Takanori OHKAWA, Hiroyuki HATASAKO, Takafumi KASUGA, Takahisa UEKI, Ulrich KOLLOCH
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Publication number: 20190226563Abstract: To provide a rectilinear drive device capable of preventing or significantly suppressing a guide plate from swinging caused by a shake of a lead screw when the lead screw is shaken. Specifically, a lead screw driven and rotated by a motor, a nut threadedly engaged with the lead screw, a guide shaft arranged parallel to the lead screw, a regulating portion movably provided on the guide shaft and engaged with the outer periphery of the nut to regulate the rotation of the nut, and a slide plate formed with the wall portion configured to receive a thrust force of the nut from the end surface of the nut are included, and the end surface of the nut is provided with projections in line contact or point contact with the wall portion.Type: ApplicationFiled: September 21, 2017Publication date: July 25, 2019Applicant: NIDEC SANKYO CORPORATIONInventors: Hiroyuki HATASAKO, Takafumi KASUGA, Takahisa UEKI
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Publication number: 20190213885Abstract: A driving assistance device detects an object existing around a mobile body and predicts travel of the detected object. The driving assistance device predicts whether the mobile body and the detected object will collide or not. In case where a collision between the mobile body and the object is predicted, the driving assistance device determines whether notification that the collision has been predicted is to be given to a driver of the mobile body or not, based on whether failure in a prediction of the travel of the object has been detected or not and whether gaze of the driver of the mobile body at the detected object has been determined or not.Type: ApplicationFiled: July 22, 2016Publication date: July 11, 2019Applicant: Mitsubishi Electric CorporationInventors: Takehiko HANADA, Takafumi KASUGA, Michinori YOSHIDA
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Publication number: 20190086664Abstract: A drive device includes a drive part and a movable member structured to be moved by a drive force of the drive part. The movable member includes a main body part and a support part which supports a supported member. The support part includes an elastic support part which urges the supported member and a fixed support part which is provided so as to face the elastic support part in a moving direction of the movable member and supports the supported member urged by the elastic support part.Type: ApplicationFiled: September 13, 2018Publication date: March 21, 2019Applicant: NIDEC SANKYO CORPORATIONInventors: Hiroyuki HATASAKO, Hidekazu YONEYAMA, Takafumi KASUGA, Takahisa UEKI
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Publication number: 20190086663Abstract: A drive device includes a drive part and a movable member structured to be moved by a drive force of the drive part. The movable member is provided with a main body part and a support part which supports a supported member, and the support part is formed of a material whose rigidity is higher than a rigidity of a material of the main body part and is partly embedded and fixed to the main body part.Type: ApplicationFiled: September 13, 2018Publication date: March 21, 2019Inventors: Hiroyuki HATASAKO, Hidekazu YONEYAMA, Takafumi KASUGA, Takahisa UEKI
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Publication number: 20190042863Abstract: A control unit (21) determines an allocation rate of computational resources to be allocated to each of a plurality of sensing processes of analyzing sensor data output from a plurality of sensors that observe an area around a moving body (100), based on a moving environment of the moving body (100), such as the type of a road where the moving body (100) travels, behavior of the moving body (100), and visibility from the moving body (100). A detection unit (22) detects an object in the area around the moving body (100) by using, for a corresponding sensing process, computational resources of an allocated amount specified based on the allocation rate determined by the control unit (21).Type: ApplicationFiled: April 20, 2016Publication date: February 7, 2019Applicant: Mitsubishi Electric CorporationInventor: Takafumi KASUGA
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Patent number: 9923428Abstract: A motor device may include a motor comprising a motor shaft protruded from a motor main body; a worm gear connected with the motor shaft through a coupling; a worm wheel engaged with the worm gear; and a frame on which the motor, the worm gear and the worm wheel are mounted. The coupling may include a motor side coupling part; a transmission member; and a worm gear side coupling part. The motor side coupling part and the transmission member may be relatively movable in a first direction perpendicular to the axial line direction. The transmission member and the worm gear side coupling part may be relatively movable in a second direction perpendicular to the axial line direction and intersecting the first direction. A compression coil spring may be disposed between the transmission member and an end part of the worm gear.Type: GrantFiled: February 28, 2014Date of Patent: March 20, 2018Assignee: NIDEC SANKYO CORPORATIONInventors: Mamoru Yamaoka, Takafumi Kasuga, Yuji Shingu
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Patent number: 9897905Abstract: A head-up display includes a case main body formed with an opening part, a combiner capable of closing the opening part, a combiner drive unit including a drive device and a spring, and a projection unit. The combiner, the combiner drive unit and the projection unit are accommodated inside the case main body. The combiner drive unit is integrally provided with a second turnable shaft and a bearing turnably supporting the second turnable shaft is provided in a base part fixed to the case main body so as to be turnable with respect to the base part. A first spring for urging the bearing with respect to the base part in one direction is provided between the base part and the bearing. A second spring for urging the combiner drive unit with respect to the bearing in an opposite direction is provided between the bearing and the combiner drive unit.Type: GrantFiled: December 8, 2016Date of Patent: February 20, 2018Assignee: NIDEC SANKYO CMI CORPORATIONInventors: Takanori Ohkawa, Osamu Kodaira, Hiroyuki Hatasako, Takafumi Kasuga, Takahisa Ueki
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Patent number: 9859771Abstract: A motor device may include a motor including a motor shaft protruded from a motor main body; a worm gear connected with the motor shaft through a transmission mechanism and is formed with a spiral groove; and a worm wheel engaged with the worm gear. The transmission mechanism may include a transmission member to transmit rotation of the motor shaft to the worm gear. One end face on the motor main body side of the worm gear and an end face on a worm gear side of the transmission member may be formed with two protruded parts protruded toward the other of the end faces, and a recessed part engaged with the protruded parts is formed in the other of the end faces. A compression coil spring may disposed between the worm gear and the transmission member between the two protruded parts.Type: GrantFiled: February 28, 2014Date of Patent: January 2, 2018Assignee: NIDEC SANKYO CORPORATIONInventors: Mamoru Yamaoka, Yoshinori Ogawa, Takafumi Kasuga, Yuji Shingu
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Patent number: 9839869Abstract: The honeycomb filter of the present invention comprises a ceramic honeycomb substrate formed from a porous body of sintered ceramic particles, and a filter layer formed on the surface of the cell walls, wherein a portion of the filter layer penetrates from the surface of the cell walls into pores formed by the ceramic particles to form inter-particle filtration bodies, these inter-particle filtration bodies are formed from a plurality of spherical ceramic particles and crosslinking bodies which bind the spherical ceramic particles to each other, and the spherical ceramic particles and the crosslinking bodies form a three-dimensional network structure.Type: GrantFiled: March 30, 2012Date of Patent: December 12, 2017Assignee: IBIDEN CO., LTD.Inventors: Takafumi Kasuga, Misako Makino, Saiduzzaman Md
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Patent number: 9724634Abstract: An object of the present invention is to provide a honeycomb filter capable of achieving a combination of high collection efficiency and low pressure loss. The honeycomb filter comprises a ceramic honeycomb substrate in which a multitude of cells through which a fluid flows are disposed in parallel in a longitudinal direction and are separated by cell walls, each cell being sealed at an end section at either the fluid inlet side or the fluid outlet side, and a filter layer which, among the surfaces of the cell walls, is formed on the surface of the cell walls of those cells in which the end section at the fluid inlet side is open and the end section at the fluid outlet side is sealed by a sealing material, wherein the thickness of the filter layer increases gradually from the fluid inlet side toward the fluid outlet side.Type: GrantFiled: March 30, 2012Date of Patent: August 8, 2017Assignee: IBIDEN CO., LTD.Inventors: Takafumi Kasuga, Misako Makino, Kazuki Nakamura, Yuichi Nagatsu, Takeshi Ushida
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Publication number: 20170168300Abstract: A head-up display includes a case main body formed with an opening part, a combiner capable of closing the opening part, a combiner drive unit including a drive device and a spring, and a projection unit. The combiner, the combiner drive unit and the projection unit are accommodated inside the case main body. The combiner drive unit is integrally provided with a second turnable shaft and a bearing turnably supporting the second turnable shaft is provided in a base part fixed to the case main body so as to be turnable with respect to the base part. A first spring for urging the bearing with respect to the base part in one direction is provided between the base part and the bearing. A second spring for urging the combiner drive unit with respect to the bearing in an opposite direction is provided between the bearing and the combiner drive unit.Type: ApplicationFiled: December 8, 2016Publication date: June 15, 2017Applicant: NIDEC SANKYO CMI CORPORATIONInventors: Takanori OHKAWA, Osamu KODAIRA, Hiroyuki HATASAKO, Takafumi KASUGA, Takahisa UEKI
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Patent number: 9499168Abstract: Based on a vehicle driving condition indicated by vehicle control information, an image area to be displayed is determined from a panorama image of a vehicle periphery and a judgment is made about a collision possibility between a vehicle outside object appearing in the image area and the vehicle, so that a display image including the image area is generated and displayed on a display 16, and the vehicle is controlled to avoid its collision with the vehicle outside object according to a result of the judgment about the collision possibility.Type: GrantFiled: January 9, 2013Date of Patent: November 22, 2016Assignee: Mitsubishi Electric CorporationInventors: Yoshiaki Watanabe, Takehisa Mizuguchi, Takeshi Mitsui, Yoshihiro Ogawa, Takafumi Kasuga, Yohei Miki, Takeo Fujita