Patents by Inventor Nobuhiko Naka

Nobuhiko Naka 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: 11421325
    Abstract: A present invention provides a method for manufacturing a printed wiring board having excellent plating adhesion to a resin substrate having low surface roughness such as having surface roughness Ra of 0.2 ?m or less, having excellent treating solution stability, and having high penetrability into the resin substrate. The method for manufacturing a resin substrate includes a step 1A or a step 1B; and a step 2 after the step 1A or the step 1B; and the steps are conducted before conducting electroless plating.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: August 23, 2022
    Assignee: C. UYEMURA & CO., LTD.
    Inventors: Yoshikazu Saijo, Hisamitsu Yamamoto, Nobuhiko Naka
  • Patent number: 11222644
    Abstract: The purpose of the present invention is to estimate, with a small amount of computation, a linear prediction synthesis filter after conversion of an internal sampling frequency. A linear prediction coefficient conversion device is a device that converts first linear prediction coefficients calculated at a first sampling frequency to second linear prediction coefficients at a second sampling frequency different from the first sampling frequency, which includes a means for calculating, on the real axis of the unit circle, a power spectrum corresponding to the second linear prediction coefficients at the second sampling frequency based on the first linear prediction coefficients or an equivalent parameter, a means for calculating, on the real axis of the unit circle, autocorrelation coefficients from the power spectrum, and a means for converting the autocorrelation coefficients to the second linear prediction coefficients at the second sampling frequency.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: January 11, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Nobuhiko Naka, Vesa Ruoppila
  • Publication number: 20210289637
    Abstract: The present invention provides a method for producing a novel printed wiring board having much higher adhesion between a filler-containing insulating resin substrate and a plating film. The method comprises the steps of: subjecting a filler-containing insulating resin substrate to a swelling treatment; a roughening treatment; a reduction treatment; and electroless plating, wherein the filler-containing insulating resin substrate after the reduction treatment is treated with a first treating solution and a second treating solution, and then is subjected to the electroless plating, wherein the first treating solution has a pH of 7 or higher and comprises: at least one selected from the group consisting of ethylene-based glycol ether represented by CmH(2m+1)-(OC2H4)n-OH, where m=an integer of 1 to 4, n=an integer of 1 to 4, and propylene-based glycol ether represented by CxH(2x+1)-(OC3H6)y-OH, where x=an integer of 1 to 4, y=an integer of 1 to 3, and wherein the second treating solution has a pH of 7.
    Type: Application
    Filed: September 20, 2017
    Publication date: September 16, 2021
    Applicant: C. Uyemura & Co., Ltd.
    Inventors: Yoshikazu SAIJO, Hisamitsu YAMAMOTO, Nobuhiko NAKA
  • Patent number: 11001929
    Abstract: To provide surface treatment that can reduce occurrence of defects caused by incorporation of dust. Rollers 40 are rotatably fixed to rotating shafts 72 provided to protrude from lateral protective walls 49. The lateral protective walls 49 are fixed perpendicularly to lower protective walls 47 fixed to outer walls 39. Hanging plates 64 of a hanger 50 extend through a space 43 between both lower protective walls 47 and support clips 52. A liquid 41, such as water, is filled in spaces defined by the lateral protective walls 49, the lower protective walls 47, and the outer walls 39. The liquid 41 is filled to cover about half of each rotating shaft 72. Thus, fine dust generated by a transferring mechanism is captured by the liquid 41 and prevented from drifting from the space 34 toward the substrate 54.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: May 11, 2021
    Assignee: C. Uyemura & Co., Ltd.
    Inventors: Masayuki Utsumi, Nobuhiko Naka
  • Patent number: 10927463
    Abstract: A novel pretreating liquid for electroless plating which is used simultaneously with reduction treatment after roughening treatment of a filler-containing insulating resin substrate. A pretreating liquid for electroless plating is used simultaneously with reduction treatment when an insulating resin substrate containing a filler is roughened and residues generated on the insulating resin substrate are reduced. The pretreating liquid comprises: a reducing agent; and at least one selected from the group consisting of ethylene-based glycol ether represented by CmH(2m+1)-(OC2H4)n-OH (m=an integer of 1 to 4, n=an integer of 1 to 4) and propylene-based glycol ether represented by CxH(2x+1)-(OC3H6)y-OH (x=an integer of 1 to 4, y= an integer of 1 to 3).
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: February 23, 2021
    Assignee: C. UYEMURA & CO., LTD.
    Inventors: Yoshikazu Saijo, Hisamitsu Yamamoto, Nobuhiko Naka
  • Publication number: 20210047734
    Abstract: A novel pretreating liquid for electroless plating which is used simultaneously with reduction treatment after roughening treatment of a filler-containing insulating resin substrate. A pretreating liquid for electroless plating is used simultaneously with reduction treatment when an insulating resin substrate containing a filler is roughened and residues generated on the insulating resin substrate are reduced. The pretreating liquid contains a reducing agent; and at least one selected from the group consisting of ethylene-based glycol ether represented by CmH(2m+1)-(OC2H4)n-OH (m=an integer of 1 to 4, n=an integer of 1 to 4) and propylene-based glycol ether represented by CxH(2x+1)-(OC3H6)y-OH (x=an integer of 1 to 4, y=an integer of 1 to 3).
    Type: Application
    Filed: November 4, 2020
    Publication date: February 18, 2021
    Applicant: C. Uyemura & Co., Ltd.
    Inventors: Yoshikazu SAIJO, Hisamitsu YAMAMOTO, Nobuhiko NAKA
  • Publication number: 20200378008
    Abstract: A present invention provides a method for manufacturing a printed wiring board having excellent plating adhesion to a resin substrate having low surface roughness such as having surface roughness Ra of 0.2 ?m or less, having excellent treating solution stability, and having high penetrability into the resin substrate. The method for manufacturing a resin substrate includes a step 1A or a step 1B; and a step 2 after the step 1A or the step 1B; and the steps are conducted before conducting electroless plating.
    Type: Application
    Filed: May 22, 2020
    Publication date: December 3, 2020
    Applicant: C. Uyemura & Co., Ltd.
    Inventors: Yoshikazu SAIJO, Hisamitsu YAMAMOTO, Nobuhiko NAKA
  • Publication number: 20200302942
    Abstract: The purpose of the present invention is to estimate, with a small amount of computation, a linear prediction synthesis filter after conversion of an internal sampling frequency. A linear prediction coefficient conversion device is a device that converts first linear prediction coefficients calculated at a first sampling frequency to second linear prediction coefficients at a second sampling frequency different from the first sampling frequency, which includes a means for calculating, on the real axis of the unit circle, a power spectrum corresponding to the second linear prediction coefficients at the second sampling frequency based on the first linear prediction coefficients or an equivalent parameter, a means for calculating, on the real axis of the unit circle, autocorrelation coefficients from the power spectrum, and a means for converting the autocorrelation coefficients to the second linear prediction coefficients at the second sampling frequency.
    Type: Application
    Filed: June 9, 2020
    Publication date: September 24, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Nobuhiko Naka, Vesa RUOPPILA
  • Patent number: 10714107
    Abstract: The purpose of the present invention is to estimate, with a small amount of computation, a linear prediction synthesis filter after conversion of an internal sampling frequency. A linear prediction coefficient conversion device is a device that converts first linear prediction coefficients calculated at a first sampling frequency to second linear prediction coefficients at a second sampling frequency different from the first sampling frequency, which includes a means for calculating, on the real axis of the unit circle, a power spectrum corresponding to the second linear prediction coefficients at the second sampling frequency based on the first linear prediction coefficients or an equivalent parameter, a means for calculating, on the real axis of the unit circle, autocorrelation coefficients from the power spectrum, and a means for converting the autocorrelation coefficients to the second linear prediction coefficients at the second sampling frequency.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: July 14, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Nobuhiko Naka, Vesa Ruoppila
  • Patent number: 10714108
    Abstract: The purpose of the present invention is to estimate, with a small amount of computation, a linear prediction synthesis filter after conversion of an internal sampling frequency. A linear prediction coefficient conversion device is a device that converts first linear prediction coefficients calculated at a first sampling frequency to second linear prediction coefficients at a second sampling frequency different from the first sampling frequency, which includes a means for calculating, on the real axis of the unit circle, a power spectrum corresponding to the second linear prediction coefficients at the second sampling frequency based on the first linear prediction coefficients or an equivalent parameter, a means for calculating, on the real axis of the unit circle, autocorrelation coefficients from the power spectrum, and a means for converting the autocorrelation coefficients to the second linear prediction coefficients at the second sampling frequency.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: July 14, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Nobuhiko Naka, Vesa Ruoppila
  • Publication number: 20200080204
    Abstract: To provide surface treatment that can reduce occurrence of defects caused by incorporation of dust. Rollers 40 are rotatably fixed to rotating shafts 72 provided to protrude from lateral protective walls 49. The lateral protective walls 49 are fixed perpendicularly to lower protective walls 47 fixed to outer walls 39. Hanging plates 64 of a hanger 50 extend through a space 43 between both lower protective walls 47 and support clips 52. A liquid 41, such as water, is filled in spaces defined by the lateral protective walls 49, the lower protective walls 47, and the outer walls 39. The liquid 41 is filled to cover about half of each rotating shaft 72. Thus, fine dust generated by a transferring mechanism is captured by the liquid 41 and prevented from drifting from the space 34 toward the substrate 54.
    Type: Application
    Filed: November 12, 2019
    Publication date: March 12, 2020
    Inventors: Masayuki UTSUMI, Nobuhiko NAKA
  • Patent number: 10513779
    Abstract: To provide surface treatment that can reduce occurrence of defects caused by incorporation of dust. Rollers 40 are rotatably fixed to rotating shafts 72 provided to protrude from lateral protective walls 49. The lateral protective walls 49 are fixed perpendicularly to lower protective walls 47 fixed to outer walls 39. Hanging plates 64 of a hanger 50 extend through a space 43 between both lower protective walls 47 and support clips 52. A liquid 41, such as water, is filled in spaces defined by the lateral protective walls 49, the lower protective walls 47, and the outer walls 39. The liquid 41 is filled to cover about half of each rotating shaft 72. Thus, fine dust generated by a transferring mechanism is captured by the liquid 41 and prevented from drifting from the space 34 toward the substrate 54.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: December 24, 2019
    Assignee: C. UYEMURA & CO., LTD.
    Inventors: Masayuki Utsumi, Nobuhiko Naka
  • Publication number: 20190264329
    Abstract: A novel pretreating liquid for electroless plating which is used simultaneously with reduction treatment after roughening treatment of a filler-containing insulating resin substrate. A pretreating liquid for electroless plating is used simultaneously with reduction treatment when an insulating resin substrate containing a filler is roughened and residues generated on the insulating resin substrate are reduced. The pretreating liquid comprises: a reducing agent; and at least one selected from the group consisting of ethylene-based glycol ether represented by CmH(2m+1)-(OC2H4)n-OH (m=an integer of 1 to 4, n=an integer of 1 to 4) and propylene-based glycol ether represented by CxH(2x+1)-(OC3H6)y-OH (x=an integer of 1 to 4, y=an integer of 1 to 3).
    Type: Application
    Filed: June 19, 2017
    Publication date: August 29, 2019
    Applicant: C. Uyemura & Co., Ltd.
    Inventors: Yoshikazu SAIJO, Hisamitsu YAMAMOTO, Nobuhiko NAKA
  • Patent number: 10366696
    Abstract: A linear prediction coefficient of a signal represented in a frequency domain is obtained by performing linear prediction analysis in a frequency direction by using a covariance method or an autocorrelation method. After the filter strength of the obtained linear prediction coefficient is adjusted, filtering may be performed in the frequency direction on the signal by using the adjusted coefficient, whereby the temporal envelope of the signal is shaped. This reduces the occurrence of pre-echo and post-echo and improves the subjective quality of the decoded signal, without significantly increasing the bit rate in a bandwidth extension technique in the frequency domain represented by SBR.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: July 30, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Kosuke Tsujino, Kei Kikuiri, Nobuhiko Naka
  • Publication number: 20190080706
    Abstract: The purpose of the present invention is to estimate, with a small amount of computation, a linear prediction synthesis filter after conversion of an internal sampling frequency. A linear prediction coefficient conversion device is a device that converts first linear prediction coefficients calculated at a first sampling frequency to second linear prediction coefficients at a second sampling frequency different from the first sampling frequency, which includes a means for calculating, on the real axis of the unit circle, a power spectrum corresponding to the second linear prediction coefficients at the second sampling frequency based on the first linear prediction coefficients or an equivalent parameter, a means for calculating, on the real axis of the unit circle, autocorrelation coefficients from the power spectrum, and a means for converting the autocorrelation coefficients to the second linear prediction coefficients at the second sampling frequency.
    Type: Application
    Filed: November 14, 2018
    Publication date: March 14, 2019
    Applicant: NTT DOCOMO, INC.
    Inventors: Nobuhiko NAKA, Vesa RUOPPILA
  • Publication number: 20190080705
    Abstract: The purpose of the present invention is to estimate, with a small amount of computation, a linear prediction synthesis filter after conversion of an internal sampling frequency. A linear prediction coefficient conversion device is a device that converts first linear prediction coefficients calculated at a first sampling frequency to second linear prediction coefficients at a second sampling frequency different from the first sampling frequency, which includes a means for calculating, on the real axis of the unit circle, a power spectrum corresponding to the second linear prediction coefficients at the second sampling frequency based on the first linear prediction coefficients or an equivalent parameter, a means for calculating, on the real axis of the unit circle, autocorrelation coefficients from the power spectrum, and a means for converting the autocorrelation coefficients to the second linear prediction coefficients at the second sampling frequency.
    Type: Application
    Filed: November 14, 2018
    Publication date: March 14, 2019
    Applicant: NTT DOCOMO, INC.
    Inventors: Nobuhiko NAKA, Vesa RUOPPILA
  • Patent number: 10163448
    Abstract: The purpose of the present invention is to estimate, with a small amount of computation, a linear prediction synthesis filter after conversion of an internal sampling frequency. A linear prediction coefficient conversion device is a device that converts first linear prediction coefficients calculated at a first sampling frequency to second linear prediction coefficients at a second sampling frequency different from the first sampling frequency, which includes a means for calculating, on the real axis of the unit circle, a power spectrum corresponding to the second linear prediction coefficients at the second sampling frequency based on the first linear prediction coefficients or an equivalent parameter, a means for calculating, on the real axis of the unit circle, autocorrelation coefficients from the power spectrum, and a means for converting the autocorrelation coefficients to the second linear prediction coefficients at the second sampling frequency.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: December 25, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Nobuhiko Naka, Vesa Ruoppila
  • Publication number: 20180100237
    Abstract: To provide surface treatment that can reduce occurrence of defects caused by incorporation of dust. Rollers 40 are rotatably fixed to rotating shafts 72 provided to protrude from lateral protective walls 49. The lateral protective walls 49 are fixed perpendicularly to lower protective walls 47 fixed to outer walls 39. Hanging plates 64 of a hanger 50 extend through a space 43 between both lower protective walls 47 and support clips 52. A liquid 41, such as water, is filled in spaces defined by the lateral protective walls 49, the lower protective walls 47, and the outer walls 39. The liquid 41 is filled to cover about half of each rotating shaft 72. Thus, fine dust generated by a transferring mechanism is captured by the liquid 41 and prevented from drifting from the space 34 toward the substrate 54.
    Type: Application
    Filed: September 6, 2017
    Publication date: April 12, 2018
    Inventors: Masayuki UTSUMI, Nobuhiko NAKA
  • Patent number: 9779744
    Abstract: A linear prediction coefficient of a signal represented in a frequency domain is obtained by performing linear prediction analysis in a frequency direction by using a covariance method or an autocorrelation method. After the filter strength of the obtained linear prediction coefficient is adjusted, filtering may be performed in the frequency direction on the signal by using the adjusted coefficient, whereby the temporal envelope of the signal is shaped. This reduces the occurrence of pre-echo and post-echo and improves the subjective quality of the decoded signal, without significantly increasing the bit rate in a bandwidth extension technique in the frequency domain represented by SBR.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: October 3, 2017
    Assignee: NTT Docomo, Inc.
    Inventors: Kosuke Tsujino, Kei Kikuiri, Nobuhiko Naka
  • Publication number: 20170053655
    Abstract: The purpose of the present invention is to estimate, with a small amount of computation, a linear prediction synthesis filter after conversion of an internal sampling frequency. A linear prediction coefficient conversion device is a device that converts first linear prediction coefficients calculated at a first sampling frequency to second linear prediction coefficients at a second sampling frequency different from the first sampling frequency, which includes a means for calculating, on the real axis of the unit circle, a power spectrum corresponding to the second linear prediction coefficients at the second sampling frequency based on the first linear prediction coefficients or an equivalent parameter, a means for calculating, on the real axis of the unit circle, autocorrelation coefficients from the power spectrum, and a means for converting the autocorrelation coefficients to the second linear prediction coefficients at the second sampling frequency.
    Type: Application
    Filed: April 16, 2015
    Publication date: February 23, 2017
    Applicant: NTT Docomo, Inc.
    Inventors: Nobuhiko NAKA, Vesa RUOPPILA