Patents by Inventor Kazuo Aoyama

Kazuo Aoyama 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).

  • Patent number: 11971906
    Abstract: A clustering device includes a storage means configured to store a transposed file including array elements in a storage unit, the array elements storing a pair in which a cluster identifier and a first non-zero feature quantity of a mean feature vector are associated with each feature identifier, a calculation means configured to calculate a distance between the object feature vector in sparse representation indicating the object feature vector in a pair in which a second non-zero feature quantity of the object feature vector and a feature identifier of the second non-zero feature quantity are associated with each other, and the mean feature vector of each cluster, and an assignment means configured to assign the object feature vector to one of the plurality of clusters on the basis of the distance, and the calculation means calculates a product of a second non-zero feature quantity and a first non-zero feature quantity stored in an array element of an index based on a feature identifier corresponding to the
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: April 30, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kazuo Aoyama, Takashi Hattori
  • Publication number: 20230368034
    Abstract: A learning apparatus according to an embodiment is a learning apparatus that learns a neural network including a linear transformation layer achieved by a weight matrix with a complex number as an element, the learning apparatus including: a formulating unit that formulates a differential equation of a loss function with respect to each of conjugate variables corresponding to input variables of the linear transformation layer and a differential equation of the loss function with respect to each of parameters of the neural network; and a learning unit that learns the parameters of the neural network by backpropagation using the differential equations formulated by the formulating unit.
    Type: Application
    Filed: December 8, 2020
    Publication date: November 16, 2023
    Inventors: Kazuo AOYAMA, Hiroshi SAWADA
  • Patent number: 11416552
    Abstract: A graph updating device includes: a K neighbor vertex search unit that searches for a K neighbor vertex set of an added vertex in a neighbor graph on the basis of the neighbor graph and an object added to the neighbor graph as an added vertex and outputs the K neighbor vertex set; a vertex selection unit that selects a vertex candidate set on the basis of the neighbor graph, the added vertex, and the K neighbor vertex set of the added vertex and outputs the vertex candidate set, the vertex candidate set being a set of vertices that is present in the neighbor graph and possibly contains the added vertex in a K neighbor vertex set thereof; and a neighbor graph updating unit that reconstructs a K neighbor vertex set related to all vertices of the neighbor graph using K neighbor vertex sets of respective vertices of the vertex candidate set and adds the K neighbor vertex set of the added vertex to the reconstructed K neighbor vertex set to generate an updated neighbor graph.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: August 16, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kazuo Aoyama, Takashi Hattori
  • Publication number: 20210294819
    Abstract: A clustering device includes a storage means configured to store a transposed file including array elements in a storage unit, the array elements storing a pair in which a cluster identifier and a first non-zero feature quantity of a mean feature vector are associated with each feature identifier, a calculation means configured to calculate a distance between the object feature vector in sparse representation indicating the object feature vector in a pair in which a second non-zero feature quantity of the object feature vector and a feature identifier of the second non-zero feature quantity are associated with each other, and the mean feature vector of each cluster, and an assignment means configured to assign the object feature vector to one of the plurality of clusters on the basis of the distance, and the calculation means calculates a product of a second non-zero feature quantity and a first non-zero feature quantity stored in an array element of an index based on a feature identifier corresponding to the
    Type: Application
    Filed: April 24, 2019
    Publication date: September 23, 2021
    Applicant: Nippon Telegraph and Telephone Corporation
    Inventors: Kazuo AOYAMA, Takashi HATTORI
  • Publication number: 20210157851
    Abstract: A graph updating device includes: a K neighbor vertex search unit that searches for a K neighbor vertex set of an added vertex in a neighbor graph on the basis of the neighbor graph and an object added to the neighbor graph as an added vertex and outputs the K neighbor vertex set; a vertex selection unit that selects a vertex candidate set on the basis of the neighbor graph, the added vertex, and the K neighbor vertex set of the added vertex and outputs the vertex candidate set, the vertex candidate set being a set of vertices that is present in the neighbor graph and possibly contains the added vertex in a K neighbor vertex set thereof; and a neighbor graph updating unit that reconstructs a K neighbor vertex set related to all vertices of the neighbor graph using K neighbor vertex sets of respective vertices of the vertex candidate set and adds the K neighbor vertex set of the added vertex to the reconstructed K neighbor vertex set to generate an updated neighbor graph.
    Type: Application
    Filed: May 8, 2019
    Publication date: May 27, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kazuo AOYAMA, Takashi HATTORI
  • Patent number: 9533377
    Abstract: A weld bead shaping apparatus including: a gouging torch for gouging an object to be shaped; a shape sensor for measuring a shape of the object; a slider apparatus and an articulated robot for driving the gouging torch and shape sensor; an image processing apparatus; and a robot controlling apparatus. The image processing apparatus includes: a shape data extracting unit extracting shape data of the object, from a measurement result obtained by the shape sensor; and a weld reinforcement shape extracting/removal depth calculating unit calculating a weld reinforcement shape of the weld bead from a difference between the shape data and a preset designated shape of the object, and calculating a removal depth by which gouging is performed, based on the weld reinforcement shape. The robot controlling apparatus controls the slider apparatus, the articulated robot, and the gouging torch based on the weld reinforcement shape and the removal depth.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: January 3, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi Hamada, Tsuyoshi Kato, Kazuo Aoyama
  • Patent number: 9248776
    Abstract: A vehicular lighting unit includes: a first light source in the form of an LED for providing illumination forward or rearward of a vehicle body, the first light source being mounted on one surface of a base plate in an orientation corresponding to the direction of the illumination; a second light source in the form of an LED for providing illumination laterally outward of the vehicle body, the second light source being mounted on another surface of the base plate; and a reflection section provided near the second light source for reflecting light emitted from the second light source laterally outward of the vehicle body.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: February 2, 2016
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kazuyuki Kawamura, Masatomo Matsumoto, Kazuo Aoyama, Kenichi Suzuki
  • Patent number: 9010614
    Abstract: According to an embodiment, a welding target position measuring device comprises: a groove wall welding part detection means for detecting a groove wall welding part based on a result of the calculation performed by a groove shape change amount calculation means; a weld bead end detection means for detecting a weld bead end based on a result of the calculation performed by a groove shape difference amount calculation means; and a welding target position selection means for obtaining a welding pass number of a subsequent pass in a welding information stored in a welding information recording means and selecting a welding target position of the subsequent pass which differs depending on welding positions based on results of the detection of the groove wall welding part and the weld bead end.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: April 21, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tatsuya Ohdake, Tetsuro Aikawa, Yoshinori Satoh, Kazuo Aoyama
  • Publication number: 20150009697
    Abstract: A vehicular lighting unit includes: a first light source in the form of an LED for providing illumination forward or rearward of a vehicle body, the first light source being mounted on one surface of a base plate in an orientation corresponding to the direction of the illumination; a second light source in the form of an LED for providing illumination laterally outward of the vehicle body, the second light source being mounted on another surface of the base plate; and a reflection section provided near the second light source for reflecting light emitted from the second light source laterally outward of the vehicle body
    Type: Application
    Filed: June 26, 2014
    Publication date: January 8, 2015
    Inventors: Kazuyuki KAWAMURA, Masatomo MATSUMOTO, Kazuo AOYAMA, Kenichi SUZUKI
  • Publication number: 20140332504
    Abstract: A weld bead shaping apparatus including: a gouging torch for gouging an object to be shaped; a shape sensor for measuring a shape of the object; a slider apparatus and an articulated robot for driving the gouging torch and shape sensor; an image processing apparatus; and a robot controlling apparatus. The image processing apparatus includes: a shape data extracting unit extracting shape data of the object, from a measurement result obtained by the shape sensor; and a weld reinforcement shape extracting/removal depth calculating unit calculating a weld reinforcement shape of the weld bead from a difference between the shape data and a preset designated shape of the object, and calculating a removal depth by which gouging is performed, based on the weld reinforcement shape. The robot controlling apparatus controls the slider apparatus, the articulated robot, and the gouging torch based on the weld reinforcement shape and the removal depth.
    Type: Application
    Filed: December 11, 2012
    Publication date: November 13, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi Hamada, Tsuyoshi Kato, Kazuo Aoyama
  • Publication number: 20130098971
    Abstract: According to an embodiment, a welding target position measuring device comprises: a groove wall welding part detection means for detecting a groove wall welding part based on a result of the calculation performed by a groove shape change amount calculation means; a weld bead end detection means for detecting a weld bead end based on a result of the calculation performed by a groove shape difference amount calculation means; and a welding target position selection means for obtaining a welding pass number of a subsequent pass in a welding information stored in a welding information recording means and selecting a welding target position of the subsequent pass which differs depending on welding positions based on results of the detection of the groove wall welding part and the weld bead end.
    Type: Application
    Filed: December 14, 2012
    Publication date: April 25, 2013
    Inventors: Tatsuya OHDAKE, Tetsuro AIKAWA, Yoshinori SATOH, Kazuo AOYAMA
  • Publication number: 20130026148
    Abstract: A welding apparatus of an embodiment includes: a welding torch and a shape sensor attached to a welding robot; a shape data extraction unit extracting, from measured data measured by the shape sensor, shape data representing an outline of an object to be welded; a transformation data calculation unit calculating, based on a position and a posture of the shape sensor, coordinate transformation data for correcting the shape data; a shape data correction unit correcting the shape data based on the coordinate transformation data; an angle calculation unit calculating, based on the corrected shape data, an inclination angle of a groove of the object to be welded; and a welding position and posture determination unit determining, based on the inclination angle of the groove, a position and a posture of the welding torch.
    Type: Application
    Filed: August 2, 2012
    Publication date: January 31, 2013
    Inventors: Kazuo AOYAMA, Tatsuya OODAKE, Shinsaku SATO, Mitsuo IWAKAWA
  • Publication number: 20090308848
    Abstract: A soft alloy layer forming apparatus (10) includes a base metal support part (20) rotationally supporting a base metal (40) with a center axis (42) of an inner periphery of the base metal (40) being a rotation axis, and an arc generating unit (30) movable in a direction of the rotation axis of the inner periphery of the base metal (40), fixed at a predetermined distance from the inner peripheral face (41) of the base metal (40), and generating an arc (31) between itself and the base metal (40). While rotating the base metal (40) and maintaining the distance constant between the arc generating unit (30) and the inner peripheral face (41) of the base metal (40), a soft alloy member (50) is melted by the arc generating unit (30) to form a soft alloy layer (15) on the inner peripheral face (41) of the base metal (40).
    Type: Application
    Filed: May 26, 2009
    Publication date: December 17, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yutaka ISHIWATA, Kazuo AOYAMA, Nobuaki ENDOU, Kiyotaka TANAKA, Hitoshi KATAYAMA
  • Patent number: 7554684
    Abstract: A printer is configured by creating a printer menu structure and installing the printer menu structure on the printer. The printer menu structure is installed on an erasable storage device in the printer. The installation of the printer menu structure replaces or extends any menu structure previously installed on the printer. Prior to installing the printer menu structure on the printer, the system simulates operation of the printer menu structure. The printer menu structure has a hierarchy of menu elements, each of which has an associated menu element type and an associated action. An icon may be associated with one or more of the menu elements.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: June 30, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Masumi Senoo, Kazuo Aoyama, Shahzad H. Bhatti
  • Patent number: 7180614
    Abstract: A printer handles a print job by determining whether the entire print job can be processed locally by the printer. If possible, the printer processes the print job locally. If the entire print job cannot be processed locally, then the printer sends the print job (or a portion of the print job) to an external rendering device. The printer receives a rendered print job (or a rendered portion of a print job) from the external rendering device. Finally, the printer prints the rendered print job. If different portions of the print job require processing by different external rendering devices, then portions of a particular print job may be distributed to multiple external rendering devices. An external rendering device may be a server coupled to the printer via the Internet.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: February 20, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Masumi Senoo, Kazuo Aoyama, Shahzad H. Bhatti
  • Patent number: 7075827
    Abstract: A function reconfigurable semiconductor device is provided. The function reconfigurable semiconductor device includes a plurality of function cells, each of the function cells being a basic unit which realizes a function; each of the function cells including a plurality of threshold elements; each of the threshold elements including means which stores a threshold value; and wherein a function which is realized by the function cell is determined by determining the threshold value in each of the threshold elements. In addition, the semiconductor device includes a nonvolatile memory which stores data for realizing the function in the function cells.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: July 11, 2006
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kazuo Aoyama, Hiroshi Sawada, Akira Nagoya, Kazuo Nakajima, Tadashi Shibata
  • Patent number: 6661503
    Abstract: A method of manufacturing an optic transmission module assures a high reliability for the module by inspecting the character of a low bit error rate (BER) of the module quickly and accurately. The module is employed in an optical communication system (light transmission system) required to cope with information communication systems that are becoming faster and faster in operation and larger and larger in capacity. Also disclosed is a system and a method for inspection of the BER character which uses a rectangular wave pulse as an interference light to calculate a degradation quantity of a signal-to-noise ratio (S/N) on the basis of a simple theory, thereby inspecting the BER character by extrapolating a case in which there is no interference light (S/X=∞ or X=0) with use of a sign error rate theoretical value according to a bit error rate of a light signal measured according to the degradation quantity.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: December 9, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Kazuo Yamaguchi, Takashi Minato, Shinzoo Nishiyama, Atsushi Murata, Naohiko Baba, Tsutomu Yoshiya, Kazumi Kawamoto, Kyouichi Yamamoto, Kazuo Aoyama
  • Publication number: 20020105833
    Abstract: A function reconfigurable semiconductor device is provided. The function reconfigurable semiconductor device includes a plurality of function cells, each of the function cells being a basic unit which realizes a function; each of the function cells including a plurality of threshold elements; each of the threshold elements including means which stores a threshold value; and wherein a function which is realized by the function cell is determined by determining the threshold value in each of the threshold elements. In addition, the semiconductor device includes a nonvolatile memory which stores data for realizing the function in the function cells.
    Type: Application
    Filed: January 4, 2001
    Publication date: August 8, 2002
    Inventors: Kazuo Aoyama, Hiroshi Sawada, Akira Nagoya, Kazuo Nakajima, Tadashi Shibata
  • Patent number: 5262453
    Abstract: A cushion or trackbed material for use in a riding-ground is obtained by coating sand with a carboxyl-containing olefin polymer and an oxygen-containing wax.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: November 16, 1993
    Assignees: Nippon Oil Company, Limited, Nippon Petrochemicals Company, Limited, Nippon Hodo Company, Limited
    Inventors: Yutaka Watanabe, Kazuo Aoyama, Hisanobu Niwata, Sumio Ikeda, Katuaki Ishikawa, Yoshiteru Kato
  • Patent number: 4817707
    Abstract: A heating soft floor mat is described comprising a base sheet composed of a thermoplastic resin foamed article as a heat insulating layer having meanderingly formed thereon grooves for conduits, conduits for heating medium disposed in the grooves, and cover material having flexibility covering the surface side thereof, wherein the thermoplastic resin foamed article is a crosslinked polyethylene foamed article containing closed cells having a degree of expansion of from 10 to 40 and the conduits are composed of low density crosslinked polyethylene having a density of less than 0.910 g/cm.sup.3.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: April 4, 1989
    Assignees: Ryowa Corporation, Tokyo Gas Co., Ltd.
    Inventors: Kazuo Aoyama, Yukitaka Murata, Kiyoshi Hattori, Akio Okamoto, Kiyoshi Takahashi, Takashi Sasaki, Shigeko Hanari