Patents by Inventor Masafumi Nakayama

Masafumi Nakayama 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: 20230363688
    Abstract: Provided is an examination result estimation device that includes: a signal acquisition unit that acquires an electrocardiogram signal; an estimation unit that estimates an echocardiography result corresponding to the electrocardiogram signal acquired by the signal acquisition unit, by using a learned model obtained by machine learning using an electrocardiogram signal for learning as input data, and an echocardiography result as teacher data; and an output unit that outputs the echocardiography result estimated by the estimation unit.
    Type: Application
    Filed: March 16, 2021
    Publication date: November 16, 2023
    Inventor: Masafumi NAKAYAMA
  • Publication number: 20210267467
    Abstract: An ischemic cardiopathy diagnosis assistance system includes pressure data acquisition means 11 for acquiring pressure data including proximal pressure Pa in a proximal stenotic segment A1 and distal pressure Pd in a distal stenotic segment A2; intracoronary electrocardiogram data acquisition means 12 for acquiring intracoronary electrocardiogram data made up of a local intracoronary artery electrocardiogram in a neighborhood of the distal stenotic segment; and computational processing means 14 for finding a pressure ratio Pa/Pd between the proximal pressure Pa and distal pressure Pd at a time suitable for diagnosis of ischemic cardiopathy based on these data.
    Type: Application
    Filed: July 19, 2019
    Publication date: September 2, 2021
    Applicant: WASEDA UNIVERSITY
    Inventors: Masafumi Nakayama, Kiyotaka Iwasaki
  • Patent number: 10689556
    Abstract: Provided is a thermally conductive sheet including an oriented-graphite thermally conductive layer and an insulating thermally conductive layer stacked on the oriented-graphite thermally conductive layer, the oriented-graphite thermally conductive layer including a polymer matrix including a plate-like graphite powder, flat surfaces of particles of the plate-like graphite powder being oriented in the thickness direction of the sheet, the insulating thermally conductive layer including a polymer matrix including an insulating thermally conductive filler dispersed in the polymer matrix, the insulating thermally conductive layer having a thermal conductivity and an insulating property. The thermally conductive sheet has a high thermal conductivity and an insulating property, is capable of being readily fixed to an adherend, and is easy to handle.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: June 23, 2020
    Assignees: Sekisui Polymatch Co., Ltd., Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yasuyoshi Watanabe, Yoshiya Sakaguchi, Masafumi Nakayama
  • Patent number: 10438866
    Abstract: A heat-insulating sheet includes a heat storage sheet, a first insulating sheet, and a thermally conductive sheet. The heat storage sheet contains a first resin and a plurality of microcapsules containing latent heat storage material and mixed in the form of aggregates with each other. The first insulating sheet has a first face bonded to the heat storage sheet and a second face opposite to the first face. The thermally conductive sheet is bonded to the second face of the first insulating sheet. The content of the microcapsules in the heat storage sheet is falls within a range from 40 wt % to 90 wt %, inclusive. The heat storage sheet includes a layer free from the microcapsules at a portion in contact with the first insulating sheet.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: October 8, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masafumi Nakayama, Yoshiya Sakaguchi, Hirofumi Yamada
  • Patent number: 10244657
    Abstract: A thermal insulation sheet includes a heat storage sheet, an insulation sheet affixed to the heat storage sheet, and a highly-thermoconductive sheet affixed to the insulation sheet. The heat storage sheet contains a resin and powdery microcapsules mixed with the resin. The powdery microcapsules encapsulate latent-heat storage agent. The heat storage sheet has a void ratio not less than 10% and not more than 30%. Or, the heat storage sheet may have surface roughness Ra not less than 2 ?m and not more than 20 ?m. The thermal insulation sheet suppresses or retards transferring of heat generated in a heat-generating component to outside, and suppresses a rapid rising of a temperature of the heat-generating component.
    Type: Grant
    Filed: September 1, 2014
    Date of Patent: March 26, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masafumi Nakayama, Yoshiya Sakaguchi, Hirofumi Yamada
  • Patent number: 10091868
    Abstract: A heat-dissipating sheet includes a thermally-conductive resin sheet, an adhesive layer on an upper surface of the thermally-conductive resin sheet, and a thermally-conductive film on an upper surface of the adhesive layer. The thermally-conductive film has a higher thermal conductivity than the thermally-conductive resin sheet. The thermally-conductive resin sheet has a thin portion that is locally thin to form a recess in a lower surface of the thermally-conductive resin sheet. The recess may be an aperture passing through the thermally-conductive resin sheet. The adhesive layer is exposed from the aperture.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: October 2, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masafumi Nakayama, Koji Matsuno
  • Publication number: 20180163112
    Abstract: Provided is a thermally conductive sheet including an oriented-graphite thermally conductive layer and an insulating thermally conductive layer stacked on the oriented-graphite thermally conductive layer, the oriented-graphite thermally conductive layer including a polymer matrix including a plate-like graphite powder, flat surfaces of particles of the plate-like graphite powder being oriented in the thickness direction of the sheet, the insulating thermally conductive layer including a polymer matrix including an insulating thermally conductive filler dispersed in the polymer matrix, the insulating thermally conductive layer having a thermal conductivity and an insulating property. The thermally conductive sheet has a high thermal conductivity and an insulating property, is capable of being readily fixed to an adherend, and is easy to handle.
    Type: Application
    Filed: May 20, 2016
    Publication date: June 14, 2018
    Applicants: POLYMATECH JAPAN CO., LTD., PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasuyoshi Watanabe, Yoshiya Sakaguchi, Masafumi NAKAYAMA
  • Publication number: 20170345734
    Abstract: The thermally conductive sheet includes a sheet-like formed body produced by curing a mixed composition containing an uncured polymer matrix, a flat graphite powder, and a thermally conductive filler having an aspect ratio of 2 or less, flat surfaces of particles of the flat graphite powder being aligned in a thickness direction of the sheet. The thermally conductive sheet contains the thermally conductive filler together with the flat graphite powder and thus contains the thermally conductive material densely charged and has good flexibility and good tackiness on the surfaces of the sheet.
    Type: Application
    Filed: December 1, 2015
    Publication date: November 30, 2017
    Applicants: POLYMATECH JAPAN CO., LTD., PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasuyoshi Watanabe, Yoshiya Sakaguchi, Masafumi Nakayama
  • Publication number: 20170156201
    Abstract: A heat-dissipating sheet includes a thermally-conductive resin sheet, an adhesive layer on an upper surface of the thermally-conductive resin sheet, and a thermally-conductive film on an upper surface of the adhesive layer. The thermally-conductive film has a higher thermal conductivity than the thermally-conductive resin sheet. The thermally-conductive resin sheet has a thin portion that is locally thin to form a recess in a lower surface of the thermally-conductive resin sheet. The recess may be an aperture passing through the thermally-conductive resin sheet. The adhesive layer is exposed from the aperture.
    Type: Application
    Filed: September 9, 2015
    Publication date: June 1, 2017
    Inventors: MASAFUMI NAKAYAMA, KOJI MATSUNO
  • Publication number: 20170110385
    Abstract: A heat-conductive sheet includes a laminated sheet and first and insulating sheets bonded to first and second main surfaces of the laminated sheet. The laminated sheet includes graphite sheets and one or more adhesive layers disposed alternately on the graphite sheets to bonds the graphite sheets to each other. The first insulating sheet is bonded to the second insulating sheet outside an outer circumferential edge of the laminated sheet to seal the laminated sheet between the first and second insulating sheets. The laminated sheet includes an outer circumferential portion connected to the outer circumferential edge and an inner portion apart from the outer circumferential edge. The outer circumferential portion of the laminated sheet has a thickness smaller than a thickness of the inner portion. The heat-conductive sheet has high reliability of sealing the insulating sheet.
    Type: Application
    Filed: March 18, 2015
    Publication date: April 20, 2017
    Inventors: KEIJI KAWAJIRI, KAZUHIRO MIURA, MASAFUMI NAKAYAMA, HIROSHI EBINA, HIROFUMI YAMADA
  • Patent number: 9491890
    Abstract: A thermally conductive body includes an insulating sheet, a first graphite sheet provided on a first surface of the insulating sheet, and a second graphite sheet provided on a second surface that is a reverse side of the first surface of the insulating sheet. Compressibility of the insulating sheet is lower than compressibility of the first graphite sheet and compressibility of the second graphite sheet.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: November 8, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuhiko Kubo, Masafumi Nakayama
  • Publication number: 20160219752
    Abstract: A thermal insulation sheet includes a heat storage sheet, an insulation sheet affixed to the heat storage sheet, and a highly-thermoconductive sheet affixed to the insulation sheet. The heat storage sheet contains a resin and powdery microcapsules mixed with the resin. The powdery microcapsules encapsulate latent-heat storage agent. The heat storage sheet has a void ratio not less than 10% and not more than 30%. Or, the heat storage sheet may have surface roughness Ra not less than 2 ?m and not more than 20 ?m. The thermal insulation sheet suppresses or retards transferring of heat generated in a heat-generating component to outside, and suppresses a rapid rising of a temperature of the heat-generating component.
    Type: Application
    Filed: September 1, 2014
    Publication date: July 28, 2016
    Inventors: MASAFUMI NAKAYAMA, YOSHIYA SAKAGUCHI, HIROFUMI YAMADA
  • Publication number: 20160172270
    Abstract: A heat-insulating sheet includes a heat storage sheet, a first insulating sheet, and a thermally conductive sheet. The heat storage sheet contains a first resin and a plurality of microcapsules containing latent heat storage material and mixed in the form of aggregates with each other. The first insulating sheet has a first face bonded to the heat storage sheet and a second face opposite to the first face. The thermally conductive sheet is bonded to the second face of the first insulating sheet. The content of the microcapsules in the heat storage sheet is falls within a range from 40 wt % to 90 wt %, inclusive. The heat storage sheet includes a layer free from the microcapsules at a portion in contact with the first insulating sheet.
    Type: Application
    Filed: January 8, 2014
    Publication date: June 16, 2016
    Inventors: MASAFUMI NAKAYAMA, YOSHIYA SAKAGUCHI, HIROFUMI YAMADA
  • Publication number: 20160159037
    Abstract: A heat dissipation sheet includes a thermally conductive resin sheet plastically deformable at 25° C., and a thermally conductive film bonded to the thermally conductive resin sheet and having a higher thermal conductivity than the thermally conductive resin sheet. The heat dissipation sheet has excellent heat dissipation characteristics.
    Type: Application
    Filed: March 4, 2014
    Publication date: June 9, 2016
    Inventors: YOSHIYA SAKAGUCHI, MASAFUMI NAKAYAMA
  • Publication number: 20140362532
    Abstract: A thermally conductive body includes an insulating sheet, a first graphite sheet provided on a first surface of the insulating sheet, and a second graphite sheet provided on a second surface that is a reverse side of the first surface of the insulating sheet. Compressibility of the insulating sheet is lower than compressibility of the first graphite sheet and compressibility of the second graphite sheet.
    Type: Application
    Filed: March 11, 2013
    Publication date: December 11, 2014
    Inventors: Kazuhiko Kubo, Masafumi Nakayama
  • Patent number: 8475395
    Abstract: A method is provided for collecting a small blood sample by painlessly puncturing a finger. When the skin of a human being is punctured by a needle or another device at the depth that does not exceed 0.5 mm, pain accompanying the puncture is diminished or decreased. Regardless of an error in the depth of the puncture, the depth of puncture must not exceed this depth. The puncture site is located on the dorsal surface of a finger, in the area from the finger joint (IP joint of thumb, DIP joint of fingers other than thumb) to the proximal nail wall and the area extending from the proximal nail wall to the lateral nail wall.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: July 2, 2013
    Inventors: Toru Nakayama, Mariko Nakayama, Masafumi Nakayama, Takayuki Nakayama
  • Publication number: 20060224085
    Abstract: A method for collecting small amounts of blood sample by painless puncture of a finger. When puncture of skin of a human being by a needle or another device is performed at the depth of no more than 0.5 mm, pain accompanied by the puncture is diminished or decreased. Regardless of an error in the depth of the puncture, the depth of puncture always needs to not exceed this depth. The site of puncture is the dorsal surface of a finger, that is, the area from finger joint (IP joint of thumb, DIP joint of fingers other than thumb) to proximal nail wall and the area extending from proximal nail wall to lateral nail wall.
    Type: Application
    Filed: February 12, 2004
    Publication date: October 5, 2006
    Inventors: Toru Nakayama, Mariko Nakayama, Masafumi Nakayama, Takayuki Nakayama
  • Patent number: 4751976
    Abstract: In order to simplify the construction of a power steering system and simultaneously allow for unassisted steering in the event that the motor or the like of the system malfunctions, the differential gear which establishes the drive connection between the auxiliary motor, the steering input shaft and the steering output shaft is such that when the element of the differential gear which is connected to a variable speed motor is not driven by the motor, an essentially 1:1 drive is established between the steering input and output shafts while at this time the motor driven element is braked only by the friction and other natural resistances which occur in the system. Further, the differential gear is such as to have a relatively low responsiveness to the rotational speed of the motor and thus eliminates the need for a reduction gear between the motor and the differential gear.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: June 21, 1988
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Megumu Higuchi, Tokiyoshi Yanai, Masafumi Nakayama
  • Patent number: 4745985
    Abstract: This automotive vehicle power-steering system can positively compensate for resistance to the return of a steering linkage from an operating position to its neutral rest position after the vehicle turns a corner, and can enhance a steerability of the vehicle. The system includes a controller ordering a power-assist actuator to reduced the steering angular deviation of a steering wheel to zero when the controller receives a zero-level signal from a steering torque sensor and non-zero-level signal from a steering angular deviation sensor. The method for the system includes a step of controlling the power-assist actuator to generate a return-assist force counteracting the resistance and variable according to vehicle conditions.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: May 24, 1988
    Assignee: Nissan Motor Company Limited
    Inventors: Masafumi Nakayama, Tokiyoshi Yanai, Hirotsugu Yamaguchi, Yutaka Aoyama, Moritsune Nakata
  • Patent number: 4669360
    Abstract: An input shaft and an output shaft can rotate relative to each other. Pressure supplied to a pressure-responsive actuator depends on the axial position of a movable valve member. A transmission arrangement serves to move the valve member only in the axial direction as the input and output shafts rotate relative to each other. The valve member and each of the input and output shafts are wholly outside one another.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: June 2, 1987
    Assignee: Nissan Motor Company, Limited
    Inventors: Tokiyoshi Yanai, Hirotsugu Yamaguchi, Masafumi Nakayama, Megumu Higuchi, Yutaka Aoyama, Moritsune Nakata