Patents by Inventor Yoshikuni Sato

Yoshikuni Sato 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: 20180261828
    Abstract: A graphite powder, preferably including scale-like particles, which satisfies the following formulae (1) and (2), wherein e(0.5) represents the initial charge-discharge efficiency of a coin cell fabricated from an electrode (work electrode) produced by compressing an electrode material employing graphite powder as an active material under a pressure of 0.5 t/cm2, a lithium metal counter electrode, a separator and an electrolytic solution; and e(3) represents the initial charge-discharge efficiency of a coin cell fabricated from an electrode (work electrode) produced by compressing an electrode material employing graphite powder as an active material under a pressure of 3 t/cm2, a lithium metal counter electrode, a separator and an electrolytic solution: e(3)(%)?e(0.5)(%)?1,??formula (1): e(3)(%)>85.??formula (2): Also disclosed is a method of producing the graphite powder; a graphite material for a battery electrode; an electrode for a lithium ion; and a lithium-ion secondary battery.
    Type: Application
    Filed: May 8, 2018
    Publication date: September 13, 2018
    Applicant: SHOWA DENKO K.K.
    Inventors: Yasuaki WAKIZAKA, Yuichi KAMIJO, Daisuke KONO, Yoshikuni SATO
  • Publication number: 20180205075
    Abstract: The present invention relates to a method for producing a graphite-containing carbon powder for a negative electrode of a lithium ion secondary battery having a high undersize yield and a high tapping density, which does not need pulverization treatment after heat treatment. The method comprises a process of forming a carbon coating on the surface of the carbide particles to obtain a carbon-coated raw material; a process of mixing the carbon-coated raw material and a carbon material to obtain a mixed raw material; and a heat treatment process of heating the mixed raw material to 2,000° C. or more to thermally decompose the carbide. Using the graphite-containing carbon powder according to the method of the present invention makes it possible to efficiently obtain a carbon material for a battery electrode, an electrode comprising the carbon material, and a secondary battery having the electrode.
    Type: Application
    Filed: July 12, 2016
    Publication date: July 19, 2018
    Applicant: SHOWA DENKO K. K.
    Inventors: Yasuaki WAKIZAKA, Yoshikuni SATO, Daisuke MIYAMOTO
  • Patent number: 9997769
    Abstract: A graphite powder, preferably including scale-like particles, which satisfies the following formulae (1) and (2), wherein e(0.5) represents the initial charge-discharge efficiency of a coin cell fabricated from an electrode (work electrode) produced by compressing an electrode material employing graphite powder as an active material under a pressure of 0.5 t/cm2, a lithium metal counter electrode, a separator and an electrolytic solution; and e(3) represents the initial charge-discharge efficiency of a coin cell fabricated from an electrode (work electrode) produced by compressing an electrode material employing graphite powder as an active material under a pressure of 3 t/cm2, a lithium metal counter electrode, a separator and an electrolytic solution: e(3)(%)?e(0.5)(%)?1,??formula (1): e(3)(%)>85.??formula (2): Also disclosed is a method of producing the graphite powder; a graphite material for a battery electrode; an electrode for a lithium ion; and a lithium-ion secondary battery.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: June 12, 2018
    Assignee: SHOWA DENKO K.K.
    Inventors: Yasuaki Wakizaka, Yuichi Kamijo, Daisuke Kono, Yoshikuni Sato
  • Patent number: 9986797
    Abstract: A walking stick includes a main part that is stick-like, a sensor that detects at least one of an acceleration of the main part and an angular velocity of the main part, a light emitter that emits light on a ground, a balance evaluator that evaluates a user's walking balance stability based on at least one of the detected acceleration and the detected angular velocity, and an emitting controller that controls a light emitting direction of the light based on a result of the evaluation and an inclination angle of the main part.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: June 5, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshikuni Sato, Toru Nakada
  • Patent number: 9947089
    Abstract: A digital specimen manufacturing device comprises: a reduction processing unit which generates a reduced image by reducing a high resolution image of a first magnification into a second magnification image; an operation instruction unit which instructs the imaging unit to update the second magnification and recapture the low resolution image when information indicates the difference between the reduced image and the low resolution image is not within the allowable error range; and an image processing unit which obtains a third magnification, and outputs an image of the digital specimen by reducing the high resolution image into an image of the third magnification which an image magnification greater than the updated second magnification and smaller than the first magnification.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: April 17, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hideto Motomura, Yoshikuni Sato
  • Patent number: 9935328
    Abstract: A fuel cell including a pair of connectors (12, 13); a single cell (20) having an electrolyte layer (2) and electrode layers (14, 15); and current-collecting members (18, 19) disposed between the electrode layers and the connectors (12, 13), respectively. The current-collecting members (19) corresponding to at least the one electrode layer (15) has connector contact portions (19a) in contact with the connector (13), cell contact portions (19b) in contact with the electrode layer (15), connection portions (19c) connecting corresponding connector contact portions (19a) and cell contact portions (19b), and a spacer (58) disposed between the connector contact portions (19a) and cell contact portion (19b). An end of the spacer (58) located opposite the connection portions (19c) recedes from the ends of the cell contact portions (19b) located opposite the connection portions (19c) and from the ends of the connector contact portions (19a) located opposite the connection portions (19c).
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: April 3, 2018
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Hiroaki Yagi, Yoshikuni Sato, Nobuyuki Hotta
  • Patent number: 9935321
    Abstract: A fuel cell including a pair of connectors (12, 13); a single cell (20) having an electrolyte layer (2) and electrode layers (14, 15); and current-collecting members (18, 19) disposed between the electrode layers and the connectors, respectively. The current-collecting members (19) corresponding to at least the one electrode layer (15) has connector contact portions (19a) in contact with connector (13), cell contact portions (19b) in contact with electrode layer (15), connection portions (19c) connecting corresponding connector contact portions (19a) and cell contact portions (19b), and a spacer (58) disposed between connector contact portions (19a) and cell contact portion (19b). An end of the spacer (58) located opposite the connection portions (19c) protrudes from at least the ends of the cell contact portions (19b) located opposite the connection portions (19c) or the ends of the connector contact portions (19a) located opposite the connection portions (19c).
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: April 3, 2018
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Hiroaki Yagi, Yoshikuni Sato, Nobuyuki Hotta
  • Publication number: 20180069260
    Abstract: A method for producing a graphite powder for a negative electrode of a lithium ion secondary battery, including a process of graphitizing a mixture of a carbon raw material powder and a silicon carbide powder, wherein a 90% particle diameter in a volume-based cumulative particle size distribution by laser diffraction method, D90, is 1 to 40 ?m, a silicon carbide content in a total mass of a carbon raw material and silicon carbide (mass of silicon carbide/total mass of the carbon raw material and silicon carbide) is 1 to 35 mass %, the ratio of a 50% particle diameter in a volume-based cumulative particle size distribution by laser diffraction method, D50, of the carbon raw material powder to D50 of silicon carbide powder (D50 of the carbon raw material powder/D50 of silicon carbide powder) is 0.40 to 4.0.
    Type: Application
    Filed: May 10, 2016
    Publication date: March 8, 2018
    Applicant: SHOWA DENKO K.K.
    Inventors: Yasuaki WAKIZAKA, Yoshikuni SATO, Daisuke MIYAMOTO
  • Publication number: 20180060511
    Abstract: An apparatus generates motor function estimation information by performing a process including calculating, using a sensor value of a subject, a feature vector corresponding to a feature value of a feature in a time segment, acquiring a first weight vector using the feature vector and a motor ability value of the subject, calculating a gradient vector with respect to the feature vector, determining a new time segment in the predetermined time period and a new feature value based on the new time segment, calculating, using the sensor value, a feature candidate vector corresponding to a feature value of the new feature in the new time segment, determining a feature candidate vector satisfying a predetermined condition associated with a gradient vector based on a difference between the feature candidate vector and the feature vector, and correcting the first weight vector to a second weight vector using the feature candidate vector.
    Type: Application
    Filed: August 2, 2017
    Publication date: March 1, 2018
    Inventors: YOSHIKUNI SATO, TORU NAKADA, YOSHIHIDE SAWADA
  • Publication number: 20180055446
    Abstract: An exercise test evaluation system includes an acceleration sensor that is worn by a user during an exercise test and acquires acceleration values of a foot of the user, a heart rate sensor that is worn by the user and measures a heart rate of the user, and a processor. The processor acquires a first maximum acceleration value and a second maximum acceleration value, calculates a reliability score using the first and second maximum acceleration values, acquires a walking velocity and a heart rate of the user and estimates a maximum oxygen intake amount using the user's walking velocity and heart rate if the reliability score is equal to or higher than a specific threshold value, and estimates the maximum oxygen intake amount using the user's walking velocity if the reliability score is lower than the specific threshold value.
    Type: Application
    Filed: August 2, 2017
    Publication date: March 1, 2018
    Inventors: YOSHIKUNI SATO, TORU NAKADA
  • Publication number: 20180025271
    Abstract: A learning apparatus includes at least one memory and at least one circuit. The circuit (a) obtains a first neural network that has learned by using source learning data and obtains target learning data, the target learning data including a plurality of first data items each of which is given a first label and a plurality of second data items each of which is given a second label, (b) obtains a plurality of first output vectors by inputting the plurality of first data items to a second neural network and obtains a plurality of second output vectors by inputting the plurality of second data items to the second neural network, and (c) generates a first relation vector corresponding to the first label by using the plurality of first output vectors and generates a second relation vector corresponding to the second label by using the plurality of second output vectors.
    Type: Application
    Filed: July 3, 2017
    Publication date: January 25, 2018
    Inventors: YOSHIHIDE SAWADA, TORU NAKADA, YOSHIKUNI SATO
  • Publication number: 20180019472
    Abstract: A method for manufacturing a graphite powder for a negative electrode material for a lithium-ion secondary battery, which includes a process of pulverizing a graphite precursor, and subjecting a mixture of the pulverized graphite precursor and an alkaline compound to graphitization treatment by heating the mixture at 2,800 to 3,500° C. Also disclosed is a graphite powder obtained by the manufacturing method, a negative electrode for a lithium-ion secondary battery containing the graphite powder and a lithium-ion battery provided with the negative electrode.
    Type: Application
    Filed: January 26, 2016
    Publication date: January 18, 2018
    Applicant: SHOWA DENKO K.K.
    Inventors: Ayaka IKADO, Yasuaki WAKIZAKA, Takashi TERASHIMA, Yoshikuni SATO
  • Publication number: 20180009665
    Abstract: A non-flaky carbon material having specific optical structures, wherein the ratio between the peak intensity I110 of (110) plane and the peak intensity I004 of (004) plane of a graphite crystal determined by the powder XRD measurement, I110/I004, is 0.10 or more and 0.35 or less; an average circularity is 0.80 or more and 0.95 or less; d002 is 0.337 nm or less; and the total pore volume of pores having a diameter of 0.4 ?m or less measured by the nitrogen gas adsorption method is 25.0 ?l/g or more and 40.0 ?l/g or less. Also disclosed is a method for producing the carbon material, a carbon material for a battery electrode, a paste for an electrode incorporating the carbon material for a battery electrode, an electrode for a lithium battery incorporating a formed body of the paste for an electrode, a lithium-ion secondary battery including the electrode and a method for producing the electrode.
    Type: Application
    Filed: February 8, 2016
    Publication date: January 11, 2018
    Applicant: SHOWA DENKO K.K.
    Inventors: Naoto KAWAGUCHI, Takashi TERASHIMA, Yoshikuni SATO, Yasuaki WAKIZAKA
  • Patent number: 9767578
    Abstract: An image measurement device including: light sources that irradiate light beams having different peak wavelengths; a staining method obtaining unit which obtains information indicating a staining method of an inspection specimen; an image obtaining unit which: selects a combination of light sources according to the staining method, based on illumination information; and capture inspection images of the inspection specimen with light beams from the selected light sources, and capture reference images of a reference specimen with light beams from the respective light sources; a calculating unit which calculates a positivity based on the inspection images; and an evaluation unit which associates the staining method of the reference specimen with the combination of light sources to generate the illumination information based on a total value of coefficients in a linear sum of the ortho-normalization base vectors of a spectral distribution of light sources calculated based on the reference images.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: September 19, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hideto Motomura, Yoshikuni Sato, Yasuhiko Adachi
  • Publication number: 20170155149
    Abstract: A carbon material, being a not-scaly carbon material having specific optical structures, wherein the ratio between the peak intensity I110 of plane (110) and the peak intensity I004 of plane (004) of a graphite crystal determined by the powder XRD measurement, I110/I004, is 0.1 to 0.6; an average circularity is 0.80 to 0.95; d002 is 0.337 nm or less; and the total pore volume of pores having a diameter of 0.4 ?m or less measured by the nitrogen gas adsorption method is 8.0 ?l/g to 20.0 ?l/g; and a production method of the same.
    Type: Application
    Filed: May 25, 2015
    Publication date: June 1, 2017
    Applicant: SHOWA DENKO K.K.
    Inventors: Naoto KAWAGUCHI, Yasuaki WAKIZAKA, Yuichi KAMIJO, Yoshiki SHIMODAIRA, Yoshikuni SATO
  • Publication number: 20170055650
    Abstract: A walking stick includes a main part that is stick-like, a sensor that detects at least one of an acceleration of the main part and an angular velocity of the main part, a light emitter that emits light on a ground, a balance evaluator that evaluates a user's walking balance stability based on at least one of the detected acceleration and the detected angular velocity, and an emitting controller that controls a light emitting direction of the light based on a result of the evaluation and an inclination angle of the main part.
    Type: Application
    Filed: July 11, 2016
    Publication date: March 2, 2017
    Inventors: YOSHIKUNI SATO, TORU NAKADA
  • Publication number: 20170056725
    Abstract: A walking-load-degree calculation apparatus includes a rate obtainer that obtains a rate that is a heart rate or a pulse rate of a user, a walking speed obtainer that obtains one or more walking speeds of the user during a walk, a weight obtainer that obtains a weight of the user, and a walking-load-degree calculator that calculates a walking load degree that is an indicator of cardiopulmonary exercise of the user during the walk.
    Type: Application
    Filed: August 8, 2016
    Publication date: March 2, 2017
    Inventors: TORU NAKADA, YOSHIKUNI SATO
  • Patent number: 9558551
    Abstract: An image measurement apparatus includes: a lighting unit that emits a first narrowband light with a bandwidth (i) narrower than a bandwidth of a visible light and (ii) including a dominant wavelength of a color of a positive cell nucleus; an image obtaining unit that obtains an examination image by capturing an image of a pathologic examination specimen to which the first narrowband light is emitted; a cell nuclei extracting unit that extracts pixels of positive cell nuclei from the examination image by comparing pixel values of the examination image with a predetermined threshold; a positive proportion calculating unit that calculates a proportion of the positive cell nuclei among cell nuclei included in the pathologic examination specimen, using the pixels of the positive cell nuclei extracted by the cell nuclei extracting unit; and an output unit that outputs the proportion.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: January 31, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hideto Motomura, Yoshikuni Sato
  • Publication number: 20160330389
    Abstract: An image generating system according to an aspect of the present disclosure includes an image obtaining device, an image generating circuit, and an image processing circuit. The image obtaining device includes an illuminating system that irradiates an object included in a module in which the object and an imaging element are integrated together, with light sequentially from a plurality of different radiation directions. The image obtaining device obtains a plurality of images corresponding to the plurality of different radiation directions. The image generating circuit generates a high-resolution image of the object having a higher resolution than each of the plurality of images by combining the plurality of images together. The image processing circuit detects noise resulting from a foreign object located farther from an imaging surface of the imaging element than the object and removes the noise.
    Type: Application
    Filed: July 21, 2016
    Publication date: November 10, 2016
    Inventors: YASUHIKO ADACHI, YOSHIKUNI SATO, HIDETO MOTOMURA
  • Patent number: 9438793
    Abstract: An exemplary image forming apparatus includes: an illumination system which sequentially emits illuminating light beams from multiple different irradiation directions; an image sensor which captures a plurality of different images in the multiple different irradiation directions, respectively; an image processing section which forms a high-resolution image; and a memory which stores data about the ratio of light rays that have been incident on a photoelectric conversion section of each pixel of the image sensor to light rays that have passed through the upper surface of a plurality of subpixels included in the pixel with respect to each of the multiple irradiation directions. The image processing section forms the high-resolution image based on the data that has been retrieved from the memory by extracting, as a vector, a set of pixel values associated with the multiple irradiation directions from pixel values that form each of the plurality of images.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: September 6, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yasuhiko Adachi, Yoshihide Sawada, Yoshikuni Sato, Hideto Motomura