Patents by Inventor Katsuyuki Nakamura

Katsuyuki Nakamura 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: 20210335114
    Abstract: To be capable of efficiently transmitting appropriate information on the motion improvement to a person in motion. A motion evaluation system includes a sensor unit, an information processing device, and an information presentation device. The information processing device includes a communication device, a storage device, and an arithmetic device.
    Type: Application
    Filed: April 26, 2021
    Publication date: October 28, 2021
    Inventors: Takuto SATO, Takehiro NIIKURA, Mitsuhiro OKADA, Hiroki OHASHI, Takayuki AKIYAMA, Katsuyuki NAKAMURA, Mohammad OSAMH ADEL AL-NASER, Sheraz AHMED
  • Publication number: 20210295053
    Abstract: To accurately recognize observed objects. An observed-object recognition system includes an observation region estimation portion, an existence region estimation portion, and an object recognition portion. The observation region estimation portion estimates an observation region that is relatively highly likely to be an observation point in at least one first-person image in a first-person video (a video based on the first-person perspective). Based on the observation region, the existence region estimation portion estimates an existence region that belongs to the first-person image and causes an observed object to exist. The object recognition portion recognizes an object in the estimated existence region of the first-person image.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 23, 2021
    Applicant: Hitachi, Ltd.
    Inventors: Hiroki OHASHI, Katsuyuki NAKAMURA, Hiroyuki YOSHIMOTO, Naoko USHIO
  • Patent number: 11099061
    Abstract: A measurement device for a light-emitting device includes a light attenuator, a photometric sphere, and a light detector. The light attenuator includes a first surface and a heat dissipator. A first light that is emitted from the first light-emitting device is incident on the first surface. The first surface is configured to absorb a portion of the first light. The heat dissipator is configured to dissipate heat of the first surface. The photometric sphere has an inner surface to reflect the first light reflected by the first surface. The light detector is configured to receive at least a portion of the first light reflected by the inner surface.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: August 24, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Katsuyuki Onozuka, Minoru Kitahara, Naohide Miyasaka, Naoki Nakamura, Takanori Aruga, Shinobu Ito
  • Publication number: 20210228307
    Abstract: A monitor is arranged on the opposite side of a surgery table to a main doctor so that an assistant is able to view a surgery area directly without being blocked by the monitor. A camera has a working distance of more than or equal to 60 cm and is therefore above a view field for the main doctor to view the monitor, so that the visibility of the monitor is not hindered. The working distance is not more than 100 cm so that the resolution of the camera is not lowered too much.
    Type: Application
    Filed: May 23, 2019
    Publication date: July 29, 2021
    Applicants: Keio University, Mitaka Kohki Co., Ltd.
    Inventors: Eiji KOBAYASHI, Shinji UEMOTO, Shintaro YAGI, Katsuyuki NAKAMURA
  • Patent number: 11071495
    Abstract: The present invention is provided to notify a person who makes a movement of a part to be improved in the movement. A movement evaluation system includes: a proficiency degree estimating unit generating a proficiency degree score on the basis of movement data obtained by detecting a movement of a user; an improvement point extracting unit specifying a part of the movement of the user as an improvement point on the basis of the movement data; and an information generating unit generating suggestion information to be presented to the user, on the basis of the improvement point.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: July 27, 2021
    Assignee: HITACHI, LTD.
    Inventors: Mitsuhiro Okada, Takehiro Niikura, Katsuyuki Nakamura, Takuto Sato, Hiroki Ohashi, Sheraz Ahmed, Mohammad Osamh Adel Al-Naser
  • Patent number: 10878228
    Abstract: A position information server receives position information of a subject from a distance sensor, decides a position information generation process to be executed by the distance sensor on the basis of the received position information, and transmits instruction information related to the position information generation process to the distance sensor.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: December 29, 2020
    Assignee: HITACHI, LTD.
    Inventors: Yasuyuki Mimatsu, Katsuyuki Nakamura, Toshio Kamimura, Akinobu Watanabe
  • Publication number: 20200253541
    Abstract: The present invention is provided to notify a person who makes a movement of a part to be improved in the movement. A movement evaluation system includes: a proficiency degree estimating unit generating a proficiency degree score on the basis of movement data obtained by detecting a movement of a user; an improvement point extracting unit specifying a part of the movement of the user as an improvement point on the basis of the movement data; and an information generating unit generating suggestion information to be presented to the user, on the basis of the improvement point.
    Type: Application
    Filed: November 13, 2019
    Publication date: August 13, 2020
    Inventors: Mitsuhiro OKADA, Takehiro NIIKURA, Katsuyuki NAKAMURA, Takuto SATO, Hiroki OHASHI, Sheraz AHMED, Mohammad Osamh Adel AL-NASER
  • Patent number: 10740600
    Abstract: The present invention discloses a posture estimation system including a range image camera for acquiring and outputting range image and an attitude estimation device connected via the network to the range image camera. The range image camera includes a range image sensor, a range image generator that extracts a region including foreground pixels from the input range image acquired from the range image sensor and generates a range image including the extracted area, a first posture estimator that estimates a first joint position from the range image, and a first communicator that transmits the range image and the estimated first joint position.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: August 11, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Akinobu Watanabe, Katsuyuki Nakamura, Yasuyuki Mimatsu, Toshio Kamimura
  • Publication number: 20200054411
    Abstract: A surgical microscope apparatus includes a stand base to which a stand post is fixed. The stand post supports a stand body so that the stand body horizontally turns around the stand post without turning the stand post. The stand body, therefore, is turnable with small force. Load applied to a rotary part at a top part of the stand post is only the weight of the stand body, and therefore, a bearing of the rotary part can be downsized.
    Type: Application
    Filed: August 14, 2019
    Publication date: February 20, 2020
    Applicant: MITAKA KOHKI CO., LTD.
    Inventors: Katsuyuki NAKAMURA, Masao DOI
  • Patent number: 10527833
    Abstract: A surgical stereoscopic observation apparatus includes an objective optical system having an optical axis and emits two focusing beams in parallel with the optical axis toward the objective optical system. If a focal point of the objective optical system agrees with a surgical field, the two focusing beams converge to a single spot on the surgical field, and if disagrees with the surgical field, form two spots on the surgical field. According to the state of the spots, it is possible to quickly determine with naked eye or on a monitor whether or not the focal point is on the surgical field.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: January 7, 2020
    Assignee: MITAKA KOHKI CO., LTD.
    Inventor: Katsuyuki Nakamura
  • Patent number: 10462356
    Abstract: The present invention provides a quantification technique of an installation state of a range image camera in a range image camera system provided with a plurality of range image cameras. In the range image camera system provided with the plurality of range image cameras and the range image camera cooperative processing device for cooperatively processing the plurality of range image cameras, the installation information of the range image cameras is generated from a range distribution of the range image photographed by the range cameras and a luminance distribution of the luminance image to photograph the reflected light of the irradiation light of the range image camera arranged adjacently.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: October 29, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Toshio Kamimura, Akinobu Watanabe, Yasuyuki Mimatsu, Katsuyuki Nakamura
  • Patent number: 10373024
    Abstract: An image processing device for evaluating a classifier which recognizes a target object within an input image and classifies the target object into one among a plurality of classes, includes: a classification unit which obtains a classification performance of the classifier by using the classifier and classifying the target object included in each of a plurality of verification images in which a class of the target object is known, and outputting one among the plurality of classes for each of the verification images; and an evaluation unit which outputs an evaluation result of the classifier based on the classification performance of the classifier obtained with the classification unit.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: August 6, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Katsuyuki Nakamura, Yasuhiro Akiyama, Tatsuhiko Kagehiro
  • Patent number: 10288859
    Abstract: A surgical microscope has an upper face provided with a light beam outlet. An assistant scope is mounted on the light beam outlet, and is rotatable in a horizontal plane so as to direct in any direction in the plane.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: May 14, 2019
    Assignee: MITAKA KOHKI CO., LTD.
    Inventor: Katsuyuki Nakamura
  • Publication number: 20190138800
    Abstract: A position information server receives position information of a subject from a distance sensor, decides a position information generation process to be executed by the distance sensor on the basis of the received position information, and transmits instruction information related to the position information generation process to the distance sensor.
    Type: Application
    Filed: October 23, 2018
    Publication date: May 9, 2019
    Inventors: Yasuyuki MIMATSU, Katsuyuki NAKAMURA, Toshio KAMIMURA, Akinobu WATANABE
  • Publication number: 20190132509
    Abstract: The present invention provides a quantification technique of an installation state of a range image camera in a range image camera system provided with a plurality of range image cameras. In the range image camera system provided with the plurality of range image cameras and the range image camera cooperative processing device for cooperatively processing the plurality of range image cameras, the installation information of the range image cameras is generated from a range distribution of the range image photographed by the range cameras and a luminance distribution of the luminance image to photograph the reflected light of the irradiation light of the range image camera arranged adjacently.
    Type: Application
    Filed: October 23, 2018
    Publication date: May 2, 2019
    Inventors: Toshio KAMIMURA, Akinobu WATANABE, Yasuyuki MIMATSU, Katsuyuki NAKAMURA
  • Patent number: 10268902
    Abstract: An outside recognition system configured to include a camera installed on a vehicle, to analyze an image from the camera, and to recognize surroundings of the vehicle based on an analysis result of the image from the camera comprises a dirtiness detection unit which determines, as at least one reference line, at least one line on a part of at least one object that does not change in the image from the camera even if the vehicle travels, determines an observation line that corresponds to each of the at least one reference line with the image from the camera, calculates an amount by which the observation line is displaced from each of the at least one reference line, and detects whether dirt adheres to the camera based on the amount of displacement.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: April 23, 2019
    Assignee: Clarion Co., Ltd.
    Inventors: Yasuhiro Akiyama, Katsuyuki Nakamura, Kota Irie
  • Publication number: 20190102613
    Abstract: The present invention discloses a posture estimation system including a range image camera for acquiring and outputting range image and an attitude estimation device connected via the network to the range image camera. The range image camera includes a range image sensor, a range image generator that extracts a region including foreground pixels from the input range image acquired from the range image sensor and generates a range image including the extracted area, a first posture estimator that estimates a first joint position from the range image, and a first communicator that transmits the range image and the estimated first joint position.
    Type: Application
    Filed: September 10, 2018
    Publication date: April 4, 2019
    Inventors: Akinobu WATANABE, Katsuyuki NAKAMURA, Yasuyuki MIMATSU, Toshio KAMIMURA
  • Patent number: 10228530
    Abstract: A stand apparatus for a surgical microscope includes a stand body and a parallel linkage. The parallel linkage is rotatably attached to the stand body by attaching a lower-end joint thereof instead of a vertical intermediate part thereof to the stand body. When the parallel linkage is tilted frontward, no part of the parallel linkage protrudes rearward. Weight balance of the frontward tilted parallel linkage is maintained by, instead of a counterweight, a compression spring arranged along a rear sub-arm.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: March 12, 2019
    Assignee: MITAKA KOHKI CO., LTD.
    Inventor: Katsuyuki Nakamura
  • Patent number: 10122991
    Abstract: A surgical stereoscopic observation apparatus has a pair of main optical paths A and a pair of secondary optical paths B, an aligning direction of the paths B differing by 90 degrees from that of the paths A. The main and secondary optical paths involve imaging elements D1 and D2, respectively. This apparatus is able to provide not only electronic images oriented for a main operator and an assistant positioned opposite to the main operator but also electronic images orientated for an assistant positioned on the left or right side of the main operator, thereby allowing the main operator and assistants to cooperatively conduct an operation.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: November 6, 2018
    Assignee: MITAKA KOHKI CO., LTD.
    Inventor: Katsuyuki Nakamura
  • Patent number: 10063850
    Abstract: A surgical stereoscopic observation apparatus defines main optical paths and secondary optical paths that are branched from the main optical paths A and run to a pair of fluorescence imaging elements. The apparatus picks up both visible-light images and fluorescence images, displays the images on an electronic image display unit, and allows an observer to stereoscopically observe the displayed images.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: August 28, 2018
    Assignee: MITAKA KOHKI CO., LTD.
    Inventor: Katsuyuki Nakamura