Patents by Inventor Tatsuya Koyama

Tatsuya Koyama 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: 20190189006
    Abstract: A three-dimensional information processing method includes: obtaining, via a communication channel, map data that includes first three-dimensional position information; generating second three-dimensional position information from information detected by a sensor; judging whether one of the first three-dimensional position information and the second three-dimensional position information is abnormal by performing, on one of the first three-dimensional position information and the second three-dimensional position information, a process of judging whether an abnormality is present; determining a coping operation to cope with the abnormality when one of the first three-dimensional position information and the second three-dimensional position information is judged to be abnormal; and executing a control that is required to perform the coping operation.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Inventors: Tadamasa TOMA, Takahiro NISHI, Toshiyasu SUGIO, Toru MATSUNOBU, Satoshi YOSHIKAWA, Tatsuya KOYAMA
  • Publication number: 20190174109
    Abstract: A camerawork generating method includes: generating, from a multi-view video of a same scene captured from different viewpoints, a three-dimensional model for the scene; determining a target scene which is included in the scene and is a target for which a free-viewpoint video of the three-dimensional model as viewed from a virtual camera is to be generated; and generating a camerawork representing a temporal change in a position and an orientation of the virtual camera in the free-viewpoint video.
    Type: Application
    Filed: February 8, 2019
    Publication date: June 6, 2019
    Inventors: Satoshi YOSHIKAWA, Toshiyasu SUGIO, Toru MATSUNOBU, Tatsuya KOYAMA, Shuuhei SASAKURA, Chisato YAMASHITA
  • Publication number: 20190164332
    Abstract: A three-dimensional data creation method includes: creating first three-dimensional data from information detected by a sensor; receiving encoded three-dimensional data that is obtained by encoding second three-dimensional data; decoding the received encoded three-dimensional data to obtain the second three-dimensional data; and merging the first three-dimensional data with the second three-dimensional data to create third three-dimensional data.
    Type: Application
    Filed: January 9, 2019
    Publication date: May 30, 2019
    Inventors: Toru MATSUNOBU, Takahiro NISHI, Tadamasa TOMA, Toshiyasu SUGIO, Satoshi YOSHIKAWA, Tatsuya KOYAMA
  • Publication number: 20190108656
    Abstract: A three-dimensional data encoding method includes: extracting, from first three-dimensional data, second three-dimensional data having an amount of a feature greater than or equal to a threshold; and encoding the second three-dimensional data to generate first encoded three-dimensional data. For example, the three-dimensional data encoding method may further include encoding the first three-dimensional data to generate the second encoded three-dimensional data.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 11, 2019
    Inventors: Toshiyasu SUGIO, Takahiro NISHI, Tadamasa TOMA, Toru MATSUNOBU, Satoshi YOSHIKAWA, Tatsuya KOYAMA
  • Publication number: 20190078171
    Abstract: In this steel component, the concentration of C in a surface layer is 0.85 mass % or more to 1.2 mass % or less, which is higher than the concentration of C in a starting material steel, the surface layer has a volume ratio of a retained-austenite structure higher than 0% and lower than 10%, the remainder of the surface layer is a martensitic structure, the area fraction of grain boundary carbides in the surface layer is lower than 2%, a layer inside the surface layer is higher than the surface layer in a volume ratio of a retained-austenite structure, and in the layer inside the surface layer, the remainder is a martensitic structure.
    Type: Application
    Filed: March 8, 2017
    Publication date: March 14, 2019
    Applicants: AISIN AW CO., LTD., NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Koji OBAYASHI, Kazuaki OKADA, Keisuke MATSUZAKA, Masashi SAKAKIBARA, Manabu KUBOTA, Kei MIYANISHI, Tatsuya KOYAMA
  • Publication number: 20190051036
    Abstract: Provided is a three-dimensional reconstruction method of reconstructing a three-dimensional model from multi-view images. The method includes: selecting two frames from the multi-view images; calculating image information of each of the two frames; selecting a method of calculating corresponding keypoints in the two frames, according to the image information; and calculating the corresponding keypoints using the method of calculating corresponding keypoints selected in the selecting of the method of calculating corresponding keypoints.
    Type: Application
    Filed: October 17, 2018
    Publication date: February 14, 2019
    Inventors: Toru MATSUNOBU, Toshiyasu SUGIO, Satoshi YOSHIKAWA, Tatsuya KOYAMA, Pongsak LASANG, Jian GAO
  • Patent number: 10202677
    Abstract: A production method of a carburized steel, which improves a gas carburizing property of a steel having a high Si content and suppress deterioration of productivity, includes preliminary and main gas carburizing processes. In the preliminary gas carburizing process, a steel having a chemical composition that contains C, Si, Mn, and Cr and, in mass %, satisfies Formula (1) is subjected to a gas carburizing treatment at a carburizing temperature Tp° C. that satisfies Formula (A) for 10 minutes to less than 20 hours. In the main gas carburizing process, a gas carburizing treatment is performed at a carburizing temperature Tr(° C.) that satisfies Formula (B) for a carburizing time tr minutes. 6.5<3.5[Si %]+[Mn %]+3[Cr %]?18??(1) 800?Tp<163×ln(CP+0.6)?41×ln(3.5×[Si %]+[Mn %]+3×[Cr %])+950??(A) 4<13340/(Tr+273.15)?ln(tr)<7??(B) Where, CP in the formula is substituted by a carbon potential during carburization in the preliminary carburizing process.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: February 12, 2019
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Tatsuya Koyama, Manabu Kubota
  • Patent number: 10171794
    Abstract: In a method, M (M is a natural number smaller than N) cameras capturing images to be displayed are selected from N (N is a natural number equal to or larger than 2) cameras capturing images of a same scene. The method includes obtaining positions and image capture angles of the N cameras and selecting M cameras from the N cameras on the basis of the obtained positions and image capture angles of the N cameras.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: January 1, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Toru Matsunobu, Toshiyasu Sugio, Tatsuya Koyama, Satoshi Yoshikawa
  • Patent number: 10151010
    Abstract: A soft nitrided induction hardened steel part which is excellent in bearing fatigue strength comprised of a predetermined chemical composition wherein a dissolved N concentration from the surface to 0.2 mm depth is 0.05 to 1.50%, a Vicker's hardness from the surface to 0.2 mm depth after tempering at 300° C. is HV 600 or more, and t/r?0.35 when an effective hardened layer depth “t” is 0.5 mm or more and a radius of a breakage risk site or half of the thickness is “r” (mm).
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: December 11, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Tatsuya Koyama, Suguru Yoshida
  • Publication number: 20180343442
    Abstract: A video display method includes: selecting, as a first selected viewpoint, one first viewpoint from among a plurality of first viewpoints corresponding to a plurality of second videos, and displaying a second video corresponding to the first selected viewpoint; determining whether the first selected viewpoint is included in a plurality of second viewpoints corresponding to a plurality of fourth videos captured after the plurality of second videos; and selecting one second viewpoint from among the plurality of second viewpoints as a second selected viewpoint and displaying a fourth video that is included in the plurality of fourth videos and corresponds to the second selected viewpoint, when the first selected viewpoint is determined to not be included in the plurality of second viewpoints.
    Type: Application
    Filed: August 2, 2018
    Publication date: November 29, 2018
    Inventors: Satoshi YOSHIKAWA, Toshiyasu SUGIO, Toru MATSUNOBU, Tatsuya KOYAMA
  • Patent number: 10101694
    Abstract: A fixing device includes: a first heater including a first glass tube, a first heating body, and a first lead portion; a second heater including a second glass tube, a second heating body, and a second lead portion; a frame including first and second fixing surfaces; and a first terminal member including a first connection portion and a first fixed portion; and a second terminal member including a second connection portion and a second fixed portion. The first and second heaters are elongated in an elongated direction and arrayed in a first array direction. The first and second lead portions are fixed to the first and second connection portions, respectively. The first and second fixed portions are fixed to the first and second fixing surfaces, respectively, and arrayed in a second array direction. The first array direction is inclined relative to the second array direction when viewed in the elongated direction.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: October 16, 2018
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Tatsuya Koyama
  • Patent number: 10072314
    Abstract: A Roughly shaped material for induction hardened components including: a. steel as a base metal including, as a chemical composition, by mass %, C: 0.35% to 0.6%, Si: 0.02% to 2.0%, Mn: 0.35% to 1.5%, Al: 0.001% to 0.5%, Cr: 0.05% to 2.0%, S: 0.0001% to 0.05%, N: 0.003% to 0.0120%, P: 0.03% or less, O: 0.0050% or less, an iron nitride layer having a thickness of 0.1 ?m to 50 ?m in a depth direction is formed at a surface, and a volume fraction of a ?? phase, which is a Fe nitride, in the iron nitride layer, is 80% or more.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: September 11, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Suguru Yoshida, Tatsuya Koyama
  • Patent number: 10025242
    Abstract: A fixing device includes an endless belt, a girder disposed inside of a loop of the endless belt and extending in the width direction, a plate disposed between the girder and the endless belt, a pressing member disposed outside of the loop of the endless belt, a heater disposed inside the loop pf the endless belt, a first support disposed between the plate and the girder, and a second support disposed between the plate and the girder while being away from the first support. The first height of the second support is greater than the second height of the second support. A first difference between the first height of the first support and the second height of the first support is less than a second difference between the first height of the second support and the second height of the second support.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: July 17, 2018
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Tatsuya Koyama
  • Patent number: 10012943
    Abstract: A fixing device includes: first and second heaters; a frame; and first and second terminals. The frame includes first and second fixing surfaces. The first terminal is electrically-connected to the first heater and includes: a first plate-shaped portion including a first fixed portion fixed to the first fixing surface. The second terminal is electrically-connected to the second heater and includes: a second plate-shaped portion including a second fixed portion fixed to the second fixing surface; and a first electrical connection portion electrically-connected to a power source and including: a first intermediate portion bent from the second plate-shaped portion and extending in a first direction connecting the second fixed portion and the second fixing surface; and a first tip portion. The first intermediate portion has: a first end connected to the second plate-shaped portion; and a second end from which the first tip portion extends along the first plate-shaped portion.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: July 3, 2018
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Tatsuya Koyama
  • Publication number: 20180094345
    Abstract: A case-hardened steel component includes a base metal and a carburized layer, the base metal has a predetermined chemical composition, a number density of Ti-based precipitates having an equivalent circle diameter of 5 to 50 nm in a surface region from a surface to a depth of 0.1 mm is 0.5 pieces/?m2 or more, and in the surface region, a number density of AlN having an equivalent circle diameter of 50 nm or more and 100 nm or less is 0.5 pieces/?m2 or less.
    Type: Application
    Filed: March 31, 2016
    Publication date: April 5, 2018
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Tatsuya KOYAMA, Manabu KUBOTA
  • Publication number: 20180091704
    Abstract: Video synchronization apparatus is a video synchronization apparatus including a processor and a storage connected to the processor. The processor performs a detection step of detecting a first feature point in a first image frame in a first video, and a second feature point in each of a plurality of second image frames in a second video. The processor further performs an extraction step of extracting matching points that are a set of the first feature point and a second feature point that is similar to the first feature point, and a synchronization step of determining a second image frame to be synchronized with the first image frame, based on a first degree of satisfaction, by a matching point in each second image frame, of a first geometric relationship between the each second image frame and the first image frame.
    Type: Application
    Filed: November 28, 2017
    Publication date: March 29, 2018
    Inventors: TATSUYA KOYAMA, TOSHIYASU SUGIO, TORU MATSUNOBU
  • Patent number: 9901817
    Abstract: The game program pertaining to the present invention receives selection operation input from a player by having the player select one of a plurality of characters. Then, it is determined whether the received selection operation input is a first selection operation input or a second selection operation input, and if the first selection operation input has been received, the character selected by the player is configured as a selectable object and a first action is configured for the character that is a selectable object, and if the second selection operation input has been received, the character selected by the player is configured as a selectable object and a second action that is different from the first action is configured for the character that is a selectable object.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: February 27, 2018
    Assignee: DeNA Co., Ltd.
    Inventors: Kyohei Yamaguchi, Tatsuya Koyama
  • Publication number: 20180046127
    Abstract: A fixing device includes: a rotary body, a heater having one end and another end, a first power supply cord having one end portion connected to the one end of the heater, a first insulator, a second power supply cord having one end portion connected to the other end of the heater, a second insulator, a support frame, and a restriction member. The first insulator holds both the one end of the heater and the one end portion of the first power supply cord. The second insulator holds both the other end of the heater and the one end portion of the second power supply cord. The support frame includes a first support portion supporting the first insulator and a second support portion supporting the second insulator. The restriction member is detachably attachable to the support frame and restricts movement of the first insulator in a first direction.
    Type: Application
    Filed: August 1, 2017
    Publication date: February 15, 2018
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Tatsuya KOYAMA
  • Publication number: 20170285540
    Abstract: A fixing device includes an endless belt, a girder disposed inside of a loop of the endless belt and extending in the width direction, a plate disposed between the girder and the endless belt, a pressing member disposed outside of the loop of the endless belt, a heater disposed inside the loop pf the endless belt, a first support disposed between the plate and the girder, and a second support disposed between the plate and the girder while being away from the first support. The first height of the second support is greater than the second height of the second support. A first difference between the first height of the first support and the second height of the first support is less than a second difference between the first height of the second support and the second height of the second support.
    Type: Application
    Filed: March 24, 2017
    Publication date: October 5, 2017
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Tatsuya KOYAMA
  • Publication number: 20170277089
    Abstract: A fixing device includes: a first heater including a first glass tube, a first heating body, and a first lead portion; a second heater including a second glass tube, a second heating body, and a second lead portion; a frame including first and second fixing surfaces; and a first terminal member including a first connection portion and a first fixed portion; and a second terminal member including a second connection portion and a second fixed portion. The first and second heaters are elongated in an elongated direction and arrayed in a first array direction. The first and second lead portions are fixed to the first and second connection portions, respectively. The first and second fixed portions are fixed to the first and second fixing surfaces, respectively, and arrayed in a second array direction. The first array direction is inclined relative to the second array direction when viewed in the elongated direction.
    Type: Application
    Filed: February 17, 2017
    Publication date: September 28, 2017
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Tatsuya KOYAMA