Patents by Inventor Yusuke Iwai

Yusuke Iwai 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).

  • Publication number: 20240135560
    Abstract: To provide a technique which makes it possible to suitably estimate an important region and a non-important region in an image, an information processing apparatus includes: an obtaining means for obtaining input data which includes at least one of image data and point cloud data; an estimating means for estimating levels of importance with respect to a respective plurality of regions which are included in a frame indicated by the input data; a replacing means for generating replaced data by replacing at least one of the plurality of regions, which are included in the input data, with alternative data in accordance with the levels of importance; an evaluating means for deriving an evaluation value by referring to the replaced data; and a training means for training the estimating means with reference to the evaluation value.
    Type: Application
    Filed: February 14, 2022
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventors: Hayato ITSUMI, Koichi NIHEI, Florian BEYE, Charvi VITTHAL, Takanori IWAI, Yusuke SHINOHARA
  • Publication number: 20240137508
    Abstract: To provide a technique which makes it possible to suitably estimate an important region and a non-important region in an image, an information processing apparatus (1) includes: an obtaining means (10) for obtaining input data which includes at least one of image data and point cloud data; an estimating means (11) for estimating levels of importance with respect to a respective plurality of regions which are included in a frame indicated by the input data; a replacing means (12) for generating replaced data by replacing at least one of the plurality of regions, which are included in the input data, with alternative data in accordance with the levels of importance; an evaluating means (13) for deriving an evaluation value by referring to the replaced data; and a training means (14) for training the estimating means with reference to the evaluation value.
    Type: Application
    Filed: February 24, 2021
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventors: Hayato ITSUMI, Koichi NIHEI, Taranori IWAI, Yusuke SHINOHARA, Florian BEYE, Charvi VITTHAL
  • Publication number: 20240129514
    Abstract: Provided is an image processing apparatus which makes it possible to, during remote control, carry out suitable monitoring while suitably suppressing a transmission load. An image processing apparatus includes: an obtaining means for obtaining an image which has been captured from a movable body; an importance level estimating means for estimating levels of importance with respect to a respective plurality of regions included in the image; and a quality parameter determining means for determining quality parameters with respect to the respective plurality of regions with reference to the levels of importance.
    Type: Application
    Filed: February 24, 2021
    Publication date: April 18, 2024
    Applicant: NEC Corporation
    Inventors: Hayato ITSUMI, Koichi NIHEI, Takanori IWAI, Yusuke SHINOHARA, Florian BEYE, Charvi VITTHAL
  • Publication number: 20240089864
    Abstract: The present technology relates to a communication device capable of improving a system throughput. Provided is a communication device including a control unit that transmits a second signal including a transmission request for a first signal for measuring reception power or propagation loss to another communication device, receives the first signal transmitted from the other communication device, measures the reception power or the propagation loss on the basis of the received first signal, and controls transmission power on the basis of the measured reception power or propagation loss. The present technology can be applied to, for example, a wireless LAN system.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Applicant: Sony Group Corporation
    Inventors: Yusuke TANAKA, Hiroshi SHIGENO, Takanobu OHNUMA, Koki IWAI, Riku INADA
  • Publication number: 20240078411
    Abstract: A first distribution estimating device determines a first probability distribution of quantized values in a predetermined value range corresponding to an input value, by using a first machine learning model. A first sampling device samples the quantized values and determines a first sample value, using the first probability distribution. A second distribution estimating device determines a second probability distribution corresponding to the first sample value, by using a second machine learning model. A second sampling device samples the quantized values in the value range and determines a second sample value, using the second probability distribution. It can be implemented in the form of any of an information processing system, an encoding device, a decoding device, a model learning device, an information processing method, an encoding method, a decoding method, a model learning method, and a program storage medium.
    Type: Application
    Filed: March 9, 2021
    Publication date: March 7, 2024
    Applicant: NEC Corporation
    Inventors: Florian BEYE, Hayato ITSUMI, Yusuke SHINOHARA, Charvi VITTHAL, Koichi NIHEI, Takanori IWAI
  • Publication number: 20190036408
    Abstract: A motor includes a rotor that is rotatable around a center axis, a stator that opposes the rotor, and a bracket. The bracket includes a cylindrical portion that accommodates the stator and that extends in an axial direction. The stator includes a stator core, an insulator that covers the stator core, a coil portion, and a terminal portion. The coil portion is formed from a conducting wire wound around the stator core via the insulator. The terminal portion is connected to a substrate, an end portion of the coil portion being bound on the terminal portion. The insulator includes a first protruding portion, at least a part of the first protruding portion protruding towards a radial-direction outer side than the cylindrical portion. Outside the cylindrical portion, the terminal portion is provided at the first protruding portion.
    Type: Application
    Filed: June 13, 2018
    Publication date: January 31, 2019
    Inventors: Yusuke IWAI, Ryosuke ISHIDA, Masakazu TANIKAWA
  • Patent number: 9800118
    Abstract: A self-cooled motor includes a shaft; a rotor; a stator radially opposite the rotor; a housing supporting a bearing and the stator; and an impeller located axially below the rotor, and configured to rotate together with the shaft to generate an air current. The housing includes a base portion located axially above the rotor; two or more attachment portions radially outward of the rotor; and a cylindrical or substantially cylindrical cover portion configured to join the base portion and the attachment portions. A lower end of each attachment portion is located at an axial level lower than an axial level of the impeller. The base portion includes an air inlet. The cover portion includes an air outlet located between adjacent ones of the attachment portions, and configured to connect a space radially inside the housing and a space radially outside the housing with each other.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: October 24, 2017
    Assignee: NIDEC CORPORATION
    Inventor: Yusuke Iwai
  • Patent number: 9800116
    Abstract: A DC brushless motor includes a housing including a plurality of attachment portions each of which is arranged to extend toward an apparatus, a base portion joined to the attachment portions, and a bearing holding portion joined to the base portion; a bearing member held by the bearing holding portion; a shaft supported by the bearing member to be rotatable about a central axis, and including a portion on one axial side to which blades that perform stirring in a heating chamber are joinable; a rotor holder fixed to the shaft; a rotor magnet held on an inside of a cylindrical portion of the rotor holder; a stator arranged radially inside the rotor magnet; and a circuit board electrically connected with the stator, and arranged axially opposite the opening of the rotor holder.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: October 24, 2017
    Assignee: NIDEC CORPORATION
    Inventors: Yusuke Iwai, Naoki Tabira, Yosuke Kawano
  • Patent number: 9800117
    Abstract: A self-cooled motor includes a rotor holder including a cylindrical portion and a bottom plate portion, and configured to rotate with a shaft; a housing supporting a bearing and a stator; and at least one blade rotating together with the shaft to generate an air current traveling radially outward, at least a portion of each blade being located axially below the bottom plate portion of the rotor holder. The housing includes a base portion axially above the rotor holder and an outlet edge portion in the housing and between adjacent ones of the attachment portions, and configured to define a main air outlet axially below, the main air outlet connecting a space radially inside the housing and a space radially outside the housing with each other. The bottom plate portion of the rotor holder includes a rotor vent hole passing therethrough in an axial direction.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: October 24, 2017
    Assignee: NIDEC CORPORATION
    Inventor: Yusuke Iwai
  • Publication number: 20150295470
    Abstract: A self-cooled motor includes a rotor holder including a cylindrical portion and a bottom plate portion, and configured to rotate with a shaft; a housing supporting a bearing and a stator; and at least one blade rotating together with the shaft to generate an air current traveling radially outward, at least a portion of each blade being located axially below the bottom plate portion of the rotor holder. The housing includes a base portion axially above the rotor holder and an outlet edge portion in the housing and between adjacent ones of the attachment portions, and configured to define a main air outlet axially below, the main air outlet connecting a space radially inside the housing and a space radially outside the housing with each other. The bottom plate portion of the rotor holder includes a rotor vent hole passing therethrough in an axial direction.
    Type: Application
    Filed: December 30, 2014
    Publication date: October 15, 2015
    Inventor: Yusuke IWAI
  • Publication number: 20150295471
    Abstract: A self-cooled motor includes a shaft; a rotor; a stator radially opposite the rotor; a housing supporting a bearing and the stator; and an impeller located axially below the rotor, and configured to rotate together with the shaft to generate an air current. The housing includes a base portion located axially above the rotor; two or more attachment portions radially outward of the rotor; and a cylindrical or substantially cylindrical cover portion configured to join the base portion and the attachment portions. A lower end of each attachment portion is located at an axial level lower than an axial level of the impeller. The base portion includes an air inlet. The cover portion includes an air outlet located between adjacent ones of the attachment portions, and configured to connect a space radially inside the housing and a space radially outside the housing with each other.
    Type: Application
    Filed: December 30, 2014
    Publication date: October 15, 2015
    Inventor: Yusuke IWAI
  • Patent number: 9103330
    Abstract: There is provided a motor including, a rotating portion and a stationary portion. The mounting plate includes a substantially cylindrical fixing cylindrical portion; an annular upper plate portion; an annular circumferential portion; and a mounting portion. A lower end of the fixing cylindrical portion is arranged at a level lower than that of a lower end of a bushing press-fit area. At least one of a lower end of a sleeve fixing area in which an outer circumferential surface of the sleeve and an inner circumferential surface of the bushing cylindrical portion are in contact with each other and a lower end of a radial gap which supports the shaft is arranged at a level higher than that of an upper end of the bushing press-fit area.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: August 11, 2015
    Assignee: NIDEC CORPORATION
    Inventors: Yosuke Kawano, Yusuke Iwai, Hidehiko Hidaka
  • Publication number: 20140265739
    Abstract: A DC brushless motor includes a housing including a plurality of attachment portions each of which is arranged to extend toward an apparatus, a base portion joined to the attachment portions, and a bearing holding portion joined to the base portion; a bearing member held by the bearing holding portion; a shaft supported by the bearing member to be rotatable about a central axis, and including a portion on one axial side to which blades that perform stirring in a heating chamber are joinable; a rotor holder fixed to the shaft; a rotor magnet held on an inside of a cylindrical portion of the rotor holder; a stator arranged radially inside the rotor magnet; and a circuit board electrically connected with the stator, and arranged axially opposite the opening of the rotor holder.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 18, 2014
    Applicant: NIDEC CORPORATION
    Inventors: Yusuke IWAI, Naoki TABIRA, Yosuke KAWANO
  • Publication number: 20130236340
    Abstract: There is provided a motor including, a rotating portion and a stationary portion. The mounting plate includes a substantially cylindrical fixing cylindrical portion; an annular upper plate portion; an annular circumferential portion; and a mounting portion. A lower end of the fixing cylindrical portion is arranged at a level lower than that of a lower end of a bushing press-fit area. At least one of a lower end of a sleeve fixing area in which an outer circumferential surface of the sleeve and an inner circumferential surface of the bushing cylindrical portion are in contact with each other and a lower end of a radial gap which supports the shaft is arranged at a level higher than that of an upper end of the bushing press-fit area.
    Type: Application
    Filed: January 24, 2013
    Publication date: September 12, 2013
    Applicant: NIDEC CORPORATION
    Inventors: Yosuke Kawano, Yusuke Iwai, Hidehiko Hidaka
  • Patent number: 8082561
    Abstract: A motor includes a rotating body including a magnet, and a fixed body including a stator. The stator includes a stator core having an annular core back portion with an upper and a lower surface, and a plurality of circumferentially spaced-apart tooth portions extending from the core back portion in a direction away from the rotational axis, and a plurality of coils provided by winding a conductive wire around the tooth portions of the stator core with multiple turns. The rotor holder is arranged axially above the stator to cover the stator. Further, an annular or arc-shaped attracting magnet arranged to attract the rotor holder toward the stator is arranged radially inwardly of the core back portion, the attracting magnet having an upper surface axially facing toward the rotor holder, and a lower surface arranged axially below the upper surface of the core back portion of the stator core.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: December 20, 2011
    Assignee: Nidec Corporation
    Inventors: Hitoshi Takaki, Shigeo Hayashi, Yusuke Iwai, Nobuaki Yasumoto, Yosuke Kawano
  • Patent number: 8032902
    Abstract: In a motor including a chucking device for detachably holding a disk, the chucking device has a center case to which a central opening of the disk is inserted. The center case has a cylindrical portion coaxial with the center axis, a cover portion for covering an axial upper side of the cylindrical portion of the center case and a base portion fixed to the shaft-fixed portion of the rotor holder; resilient members received within the center case; and claw members remaining in contact with the respective resilient members, the claw members being movable radially to hold the disk in place. The center case is spaced apart from the rotor holder except for the base portion contacting with the shaft-fixed portion of the rotor holder.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: October 4, 2011
    Assignee: Nidec Corporation
    Inventors: Hitoshi Takaki, Yusuke Iwai, Satoru Kuramoto, Tetsuya Tatara
  • Patent number: 8032903
    Abstract: In a motor including a chucking device for detachably holding a disk, the chucking device has a center case to which a central opening of the disk is inserted; resilient members received within the center case; and claw members for holding the disk in place. Each of the claw members has a tip end portion, a disk holding surface positioned axially below the tip end portion for holding the disk in place, and a recessed sliding portion formed substantially at a circumferential center region of the disk holding surface, the sliding portion serving to guide movement of the claw member. Rest portions are formed in the center case in a facing relationship with the respective sliding portions, the rest portions serving to support the respective sliding portions by contacting therewith. Each of the rest portions has an upwardly convex curved surface with which the corresponding sliding portion makes contact.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: October 4, 2011
    Assignee: Nidec Corporation
    Inventors: Hitoshi Takaki, Yusuke Iwai, Satoru Kuramoto, Tatsuya Tatara
  • Patent number: 7992160
    Abstract: In a motor including a chucking device for detachably holding a disk, the chucking device has a center case to which a central opening of the disk is inserted; resilient members received within the center case; and claw members for holding the disk in place. Each of the claw members has a claw portion having a disk holding surface for holding the disk in place and a pair of wing portions extending radially inwardly from the claw portion. Further, each of the wing portions has a spherical contact surface contacting with a underlying part arranged axially below the wing portions.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: August 2, 2011
    Assignee: Nidec Corporation
    Inventors: Hitoshi Takaki, Yusuke Iwai, Satoru Kuramoto, Tatsuya Tatara
  • Patent number: 7987475
    Abstract: A chucking mechanism according to the present invention includes a claw member which retains a discoid disk and is arranged between a plurality of claw portions which put a radial force outwardly to a central opening portion of the disk and a plurality of claw portions, a receiving portion and a sliding portion.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: July 26, 2011
    Assignee: Nidec Corporation
    Inventors: Hitoshi Takaki, Yusuke Iwai
  • Patent number: 7962928
    Abstract: In a brushless motor for use in a disk drive, a rotor is mounted onto a tube portion of a housing. A retaining claw is formed at an upper end of the tube portion. A turntable has a central concave portion which accommodates an upper portion of the tube portion of the housing. A retaining member is provided radially outside the central concave portion, and includes a plurality of retaining pieces extending to the inside of the central concave portion. When the rotor is mounted onto the housing, the retaining pieces come into contact with the retaining claw and then move upward. When the rotor moves upward relative to the housing, the retaining pieces come into contact with the retaining claw, thereby restricting upward movement of the rotor. Upward movement of the retaining pieces is restricted by contact between the retaining member and the turntable.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: June 14, 2011
    Assignee: Nidec Corporation
    Inventors: Yusuke Iwai, Tomoya Uchimura, Satoru Kuramoto, Ken Horishi