Patents by Inventor Tomoyasu Nakano

Tomoyasu Nakano 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: 9895758
    Abstract: An object is to prolong the life of a ring tool, and improve the productivity of a welded pipe. A ring tool unit is held in a downstream-side end portion of a mandrel to be inserted into a welded pipe currently being manufactured from the upstream side of a welding position, and is used as a cutting tool for continuously cutting a bead produced on the inner surface of the welded pipe, wherein the ring tool unit is formed by fitting a ring tool having a ring-like blade in a sleeve having a circular hole for holding the outer circumference of the ring tool.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: February 20, 2018
    Assignee: NAKATA MANUFACTURING CO., LTD.
    Inventors: Feizhou Wang, Takeyuki Sato, Mitsuru Nakata, Tomoyasu Nakano, Takamitsu Miura
  • Patent number: 9747927
    Abstract: A system for multifaceted singing analysis for retrieval of songs or music including singing voices having some relationship in latent semantics with a singing voice included in one particular song or music. A topic analyzing processor uses a topic model to analyze a plurality of vocal symbolic time series obtained for a plurality of musical audio signals. The topic analyzing processor generates a vocal topic distribution for each of the musical audio signals whereby the vocal topic distribution is composed of a plurality of vocal topics each indicating a relationship of one of the musical audio signals with the other musical audio signals. The topic analyzing processor generates a vocal symbol distribution for each of the vocal topics whereby the vocal symbol distribution indicates occurrence probabilities for the vocal symbols. A multifaceted singing analyzing processor performs analysis of singing voices included in musical audio signals, in the multifaceted viewpoint.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: August 29, 2017
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Tomoyasu Nakano, Kazuyoshi Yoshii, Masataka Goto
  • Publication number: 20170080507
    Abstract: An object is to prolong the life of a ring tool, and improve the productivity of a welded pipe. A ring tool unit is held in a downstream-side end portion of a mandrel to be inserted into a welded pipe currently being manufactured from the upstream side of a welding position, and is used as a cutting tool for continuously cutting a bead produced on the inner surface of the welded pipe, wherein the ring tool unit is formed by fitting a ring tool having a ring-like blade in a sleeve having a circular hole for holding the outer circumference of the ring tool.
    Type: Application
    Filed: March 18, 2014
    Publication date: March 23, 2017
    Applicant: NAKATA MANUFACTURING CO., LTD
    Inventors: Feizhou WANG, Takeyuki SATO, Mitsuru NAKATA, Tomoyasu NAKANO, Takamitsu MIURA
  • Patent number: 9595256
    Abstract: A singing synthesis section for generating singing by integrating into one singing a plurality of vocals sung by a singer a plurality of times or vocals of which parts that he/she does not like are sung again. A music audio signal playback section plays back the music audio signal from a signal portion or its immediately preceding signal corresponding to a character in the lyrics when the character displayed on the display screen is selected by a character selecting section. An estimation and analysis data storing section automatically aligns the lyrics with the vocal, decomposes the vocal into three elements, pitch, power, and timber, and stores them. A data selecting section allows the user to select each of the three elements for respective time periods of phonemes. The data editing section modifies the time periods of the three elements in alignment with the modified time periods of the phonemes.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: March 14, 2017
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Tomoyasu Nakano, Masataka Goto
  • Publication number: 20170061988
    Abstract: A system for multifaceted singing analysis for retrieval of songs or music including singing voices having some relationship in latent semantics with a singing voice included in one particular song or music. A topic analyzing processor uses a topic model to analyze a plurality of vocal symbolic time series obtained for a plurality of musical audio signals. The topic analyzing processor generates a vocal topic distribution for each of the musical audio signals whereby the vocal topic distribution is composed of a plurality of vocal topics each indicating a relationship of one of the musical audio signals with the other musical audio signals. The topic analyzing processor generates a vocal symbol distribution for each of the vocal topics whereby the vocal symbol distribution indicates occurrence probabilities for the vocal symbols. A multifaceted singing analyzing processor performs analysis of singing voices included in musical audio signals, in the multifaceted viewpoint.
    Type: Application
    Filed: August 15, 2014
    Publication date: March 2, 2017
    Inventors: Tomoyasu Nakano, Kazuyoshi Yoshii, Masataka Goto
  • Patent number: 9368103
    Abstract: For high-accuracy analysis and high-quality synthesis of voice sound (singing and speech), provided herein are a system and a method for estimating from an audio signal spectral envelopes and group delays for sound analysis and synthesis with high accuracy and high temporal resolution. An estimation system of spectral envelopes and group delays includes a fundamental frequency estimation section, an amplitude spectrum acquisition section, a group delay extraction section, a spectral envelope integration section, and a group delay integration section. The spectral envelope integration section sequentially obtains a spectral envelope for sound synthesis by averaging overlapped spectra. The group delay integration section selects from a plurality of group delays a group delay corresponding to the maximum envelope of each frequency component of the spectral envelope and integrates groups delays thus selected to sequentially obtain a group delay for sound synthesis.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: June 14, 2016
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Tomoyasu Nakano, Masataka Goto
  • Patent number: 9259772
    Abstract: In a forming apparatus, inner frames are arranged in a forming roll stand so as to move up and down. Mechanical structures of convexo-concave engagement are provided on opposed faces between respective roll chocks and yokes and the inner frames. After connection with a pressing device is released, the roll chocks and yokes are guided utilizing the moving-downward motion of the inner frames, and a stack body is formed in series so as to be withdrawn from the roll stand. The stack body is disassembled utilizing the moving-upward motion of the inner frames, and the roll chocks and yokes can be guided to the desired positions inside the stand and locked.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: February 16, 2016
    Assignee: Nakata Manufacturing Co., Ltd.
    Inventors: Takeyuki Sato, Manabu Ninomiya, Hiroaki Yabuta, Takeshi Watanabe, Tomoyasu Nakano
  • Patent number: 9192972
    Abstract: An object of the present invention is to provide a forming method and a forming machine in which in forming e.g., a round steel pipe, predetermined forming can be performed with less additional deformation imparted to a workpiece without deteriorating the productivity of the conventional roll forming, thereby manufacturing a high-quality product with high dimension precision. To achieve this object, the present invention provides a forming method and a forming machine, which adopt a rotating unit which rotatably moves on an endless track a die train having dies with outwardly directed and swingable forming passes in a breakdown step at an early forming stage, and in which the forming pass of each die holds the edge of the workpiece to rotatably move the die by changing the die to a predetermined angle, thereby realizing bending, so that problems due to twisting onto forming rolls and high locally-caused contact stress can be greatly reduced.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: November 24, 2015
    Assignee: NAKATA MANUFACTURING CO., LTD.
    Inventors: Feizhou Wang, Tomoyasu Nakano, Akinori Inokuma, Jilong Yin, Terutomo Akai
  • Patent number: 9180507
    Abstract: In a Turk's head stand, double inner frames are disposed inside an outer frame. A first inner frame is disposed so as to be adjusted in the vertical direction, and a second inner frame is disposed so as to be adjusted in the horizontal direction. Four-way straightening rolls and position adjusting devices are incorporated inside the second inner frame. Mechanical structures for convexo-concave engagement are disposed on faces of the respective roll chocks and yokes and the inner frames opposed to each other, thereby to guide the respective roll chocks and yokes, by utilizing descending motions of the inner frames, after connection with a pressing device has been released, to form the stack body in series, and to enable the stack body to be withdrawn from the roll stand.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: November 10, 2015
    Assignee: Nakata Manufacturing Co., Ltd.
    Inventors: Hiroaki Yabuta, Takeshi Watanabe, Tomoyasu Nakano
  • Publication number: 20150310850
    Abstract: A singing synthesis section for generating singing by integrating into one singing a plurality of vocals sung by a singer a plurality of times or vocals of which parts that he/she does not like are sung again. A music audio signal playback section plays back the music audio signal from a signal portion or its immediately preceding signal corresponding to a character in the lyrics when the character displayed on the display screen is selected by a character selecting section. An estimation and analysis data storing section automatically aligns the lyrics with the vocal, decomposes the vocal into three elements, pitch, power, and timber, and stores them. A data selecting section allows the user to select each of the three elements for respective time periods of phonemes. The data editing section modifies the time periods of the three elements in alignment with the modified time periods of the phonemes.
    Type: Application
    Filed: December 4, 2013
    Publication date: October 29, 2015
    Inventors: Tomoyasu Nakano, Masataka Goto
  • Publication number: 20150302845
    Abstract: For high-accuracy analysis and high-quality synthesis of voice sound (singing and speech), provided herein are a system and a method for estimating from an audio signal spectral envelopes and group delays for sound analysis and synthesis with high accuracy and high temporal resolution. An estimation system of spectral envelopes and group delays includes a fundamental frequency estimation section, an amplitude spectrum acquisition section, a group delay extraction section, a spectral envelope integration section, and a group delay integration section. The spectral envelope integration section sequentially obtains a spectral envelope for sound synthesis by averaging overlapped spectra. The group delay integration section selects from a plurality of group delays a group delay corresponding to the maximum envelope of each frequency component of the spectral envelope and integrates groups delays thus selected to sequentially obtain a group delay for sound synthesis.
    Type: Application
    Filed: July 30, 2013
    Publication date: October 22, 2015
    Inventors: Tomoyasu Nakano, Masataka Goto
  • Patent number: 9156073
    Abstract: A forming apparatus and method for forming a sectional profile of round tubing, angled tubing or open forming stock without losing the manufacturability of conventional roll forming The forming apparatus comprises individual shoe blocks having a pass on their rotating curved faces. The shoe blocks can be moved in the circumferential direction on an endless track, and are connected to provide the same curvature radius and length as a required arc segment of a virtual large-diameter circle.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: October 13, 2015
    Assignee: NAKATA MANUFACTURING CO., LTD.
    Inventors: Feizhou Wang, Tomoyasu Nakano, Akinori Inokuma, Jilong Yin, Terutomo Akai
  • Patent number: 9009052
    Abstract: Herein provided is a system for singing synthesis capable of reflecting not only pitch and dynamics changes but also timbre changes of a user's singing. A spectral transform surface generating section 119 temporally concatenates all the spectral transform curves estimated by a second spectral transform curve estimating section 117 to define a spectral transform surface. A synthesized audio signal generating section 121 generates a transform spectral envelope at each instant of time by scaling a reference spectral envelope based on the spectral transform surface. Then, the synthesized audio signal generating section 121 generates an audio signal of a synthesized singing voice reflecting timbre changes of an input singing voice, based on the transform spectral envelope and a fundamental frequency contained in a reference singing voice source data.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: April 14, 2015
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Tomoyasu Nakano, Masataka Goto
  • Publication number: 20130298630
    Abstract: An object of the present invention is to provide a forming method and a forming machine in which in forming e.g., a round steel pipe, predetermined forming can be performed with less additional deformation imparted to a workpiece without deteriorating the productivity of the conventional roll forming, thereby manufacturing a high-quality product with high dimension precision. To achieve this object, the present invention provides a forming method and a forming machine, which adopt a rotating unit which rotatably moves on an endless track a die train having dies with outwardly directed and swingable forming passes in a breakdown step at an early forming stage, and in which the forming pass of each die holds the edge of the workpiece to rotatably move the die by changing the die to a predetermined angle, thereby realizing bending, so that problems due to twisting onto forming rolls and high locally-caused contact stress can be greatly reduced.
    Type: Application
    Filed: February 24, 2011
    Publication date: November 14, 2013
    Applicant: NAKATA MANUFACTURING CO., LTD.
    Inventors: Feizhou Wang, Tomoyasu Nakano, Akinori Inokuma, Jilong Yin, Terutomo Akai
  • Publication number: 20130151256
    Abstract: Herein provided is a system for singing synthesis capable of reflecting not only pitch and dynamics changes but also timbre changes of a user's singing. A spectral transform surface generating section 119 temporally concatenates all the spectral transform curves estimated by a second spectral transform curve estimating section 117 to define a spectral transform surface. A synthesized audio signal generating section 121 generates a transform spectral envelope at each instant of time by scaling a reference spectral envelope based on the spectral transform surface. Then, the synthesized audio signal generating section 121 generates an audio signal of a synthesized singing voice reflecting timbre changes of an input singing voice, based on the transform spectral envelope and a fundamental frequency contained in a reference singing voice source data.
    Type: Application
    Filed: July 19, 2011
    Publication date: June 13, 2013
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventors: Tomoyasu Nakano, Masataka Goto
  • Patent number: 8395068
    Abstract: An object of the invention is to provide a device and a method for controlling a welding angle which is capable of resolving restrictions occurred when a conventional float type welding angle control device is used to manufacture a welded pipe, and giving full play to the ability of such a float type welding angle control device, by adopting a new mechanism for supporting and adjusting a fin roll. When the welding angle is controlled by inserting the fin roll between opposing edges of a band steel at a position located in an upstream side of squeeze rolls, the fin roll is attached to a link mechanism in which two arms are coupled so as to be pivotable within a plane defined by a pipe manufacturing line direction and a perpendicular direction thereof, and positions of gripping points of the arms are changed to adjust a position of the fin roll within the plane.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: March 12, 2013
    Assignee: Nakata Manufacturing Co., Ltd.
    Inventors: Feizhou Wang, Satoshi Tsuruta, Tomoyasu Nakano
  • Publication number: 20120285005
    Abstract: In a forming apparatus, inner frames are arranged in a forming roll stand so as to move up and down. Mechanical structures of convexo-concave engagement are provided on opposed faces between respective roll chocks and yokes and the inner frames. After connection with a pressing device is released, the roll chocks and yokes are guided utilizing the moving-downward motion of the inner frames, and a stack body is formed in series so as to be withdrawn from the roll stand. The stack body is disassembled utilizing the moving-upward motion of the inner frames, and the roll chocks and yokes can be guided to the desired positions inside the stand and locked.
    Type: Application
    Filed: December 28, 2009
    Publication date: November 15, 2012
    Applicant: NAKATA MANUFACTURING CO., LTD.
    Inventors: Takeyuki Sato, Manabu Ninomiya, Hiroaki Yabuta, Takeshi Watanabe, Tomoyasu Nakano
  • Publication number: 20120279270
    Abstract: In a Turk's head stand, double inner frames are disposed inside an outer frame. A first inner frame is disposed so as to be adjusted in the vertical direction, and a second inner frame is disposed so as to be adjusted in the horizontal direction. Four-way straightening rolls and position adjusting devices are incorporated inside the second inner frame. Mechanical structures for convexo-concave engagement are disposed on faces of the respective roll chocks and yokes and the inner frames opposed to each other, thereby to guide the respective roll chocks and yokes, by utilizing descending motions of the inner frames, after connection with a pressing device has been released, to form the stack body in series, and to enable the stack body to be withdrawn from the roll stand.
    Type: Application
    Filed: December 28, 2009
    Publication date: November 8, 2012
    Applicant: NAKATA MANUFACTURING CO., LTD.
    Inventors: Hiroaki Yabuta, Takeshi Watanabe, Tomoyasu Nakano
  • Patent number: 8244546
    Abstract: There is provided a singing synthesis parameter data estimation system that automatically estimates singing synthesis parameter data for automatically synthesizing a human-like singing voice from an audio signal of input singing voice. A pitch parameter estimating section 9 estimates a pitch parameter, by which the pitch feature of an audio signal of synthesized singing voice is got closer to the pitch feature of the audio signal of input singing voice based on at least both of the pitch feature and lyric data with specified syllable boundaries of the audio signal of input singing voice.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: August 14, 2012
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Tomoyasu Nakano, Masataka Goto
  • Patent number: 7921688
    Abstract: Roll forming a round tube to a square tube without applying excessive load to the raw tube scheduled portions to become corner portions and shoulder portions. This invention structures the curvature of the rotation axis direction of the forming roll surface in a way that in relation to other raw tube locations (straightening precedes for the raw tube locations adjacent to the corner portion scheduled locations of the square tube. It disposes stands of four-direction roll structure at the forming roll stand furthest upstream and furthest downstream sides and disposes stands of upper-lower and left-right two-direction roll structure between the upstream and downstream roll stands, and by adopting forming roll with a structure having a curvature for constricting the raw tube locations to become the shoulder portions adjacent to the corner portions of the square tube at a smaller curvature than that constricting the raw tube portions to become the side portion centers of the square tube cross section.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: April 12, 2011
    Assignee: Nakata Manufacturing Co., Ltd.
    Inventors: Feizhou Wang, Tomoyasu Nakano, Manabu Kiuchi