Patents by Inventor Tooru Wada

Tooru Wada 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: 11905647
    Abstract: Used is a method for producing a thermal insulation sheet, including: composite-forming including impregnating a nonwoven fabric with a basic sol prepared by adding a carbonate ester to a water glass composition to form a hydrogel-nonwoven fabric composite; surface-modifying including mixing the composite with a silylating agent for surface modification; and drying including removing liquid contained in the composite through drying at a temperature lower than the critical temperature of the liquid under a pressure lower than the critical pressure of the liquid. Used is a thermal insulation sheet including an aerogel and a nonwoven fabric, where the thermal insulation sheet exhibits a compressibility of 40% or lower at 0.30 to 5.0 MPa.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: February 20, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuma Oikawa, Tooru Wada, Shinji Okada, Shigeaki Sakatani, Rikako Shono
  • Patent number: 11293583
    Abstract: Heat-insulation materials that can be placed along the lines of heat sources, heat-insulation structures using the same, and processes for producing the same. A heat-insulation material, that includes: fiber sheets that each have fibers and an aerogel and that have different sizes; and at least one covering material that covers the fiber sheets, or at least one elastic material that includes the fiber sheets. The at least one covering material may include a first covering material and a second covering material.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: April 5, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Daido Kohmyohji, Kazuma Oikawa, Takashi Tsuruta, Tooru Wada, Shigeaki Sakatani, Hidenori Miyakawa
  • Publication number: 20210180244
    Abstract: Used is a method for producing a thermal insulation sheet, including: composite-forming including impregnating a nonwoven fabric with a basic sol prepared by adding a carbonate ester to a water glass composition to form a hydrogel-nonwoven fabric composite; surface-modifying including mixing the composite with a silylating agent for surface modification; and drying including removing liquid contained in the composite through drying at a temperature lower than the critical temperature of the liquid under a pressure lower than the critical pressure of the liquid. Used is a thermal insulation sheet including an aerogel and a nonwoven fabric, where the thermal insulation sheet exhibits a compressibility of 40% or lower at 0.30 to 5.0 MPa.
    Type: Application
    Filed: March 2, 2021
    Publication date: June 17, 2021
    Inventors: Kazuma OIKAWA, Tooru WADA, Shinji OKADA, Shigeaki SAKATANI, Rikako SHONO
  • Patent number: 11015286
    Abstract: Used is a method for producing a thermal insulation sheet, including: composite-forming including impregnating a nonwoven fabric with a basic sol prepared by adding a carbonate ester to a water glass composition to form a hydrogel-nonwoven fabric composite; surface-modifying including mixing the composite with a silylating agent for surface modification; and drying including removing liquid contained in the composite through drying at a temperature lower than the critical temperature of the liquid under a pressure lower than the critical pressure of the liquid. Used is a thermal insulation sheet including an aerogel and a nonwoven fabric, where the thermal insulation sheet exhibits a compressibility of 40% or lower at 0.30 to 5.0 MPa.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: May 25, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuma Oikawa, Tooru Wada, Shinji Okada, Shigeaki Sakatani, Rikako Shono
  • Publication number: 20200378058
    Abstract: A manufacturing method of a heat insulating sheet of the present disclosure includes a composite generating step of impregnating a nonwoven fiber with a basic sol prepared to generate a composite of a hydrogel-nonwoven fiber, the basic sol being prepared by adding carbonate ester to a water glass composition; and a drying step of drying a liquid contained in the composite at a temperature lower than a critical temperature of the liquid and a pressure lower than a critical pressure of the liquid to remove the liquid from the composite. A heat insulating sheet according to the present disclosure includes an aerogel and a nonwoven fiber, and has a compression rate at 0.30 MPa to 5.0 MPa of 40% or less. In an electronic device of the present disclosure, the heat insulating sheet is disposed between an electronic component and a housing. In a battery unit of the present disclosure, the heat insulating sheet is disposed between batteries.
    Type: Application
    Filed: May 18, 2020
    Publication date: December 3, 2020
    Inventors: KAZUMA OIKAWA, TOORU WADA, SHIGEKI SAKAGUCHI, TAKASHI KUBO, TAKASHI TSURUTA, SHIGEAKI SAKATANI, DAIDO KOMYOJI
  • Publication number: 20190178434
    Abstract: A heat insulating material is a sheet including a fiber and an aerogel. The fiber is aligned in a certain direction in the sheet. A heat insulating structure is used that includes: a high-temperature unit; a low-temperature; and the heat insulating material joining the high-temperature unit and the low-temperature to each other. The certain direction of the heat insulating material is a direction in which the high-temperature unit and the low-temperature unit are joined to each other. A heat insulating structure is used that includes: a first battery cell; a second battery cell; the heat insulating material disposed between the first battery cell and the second battery cell; and a cooling plate that is in contact with the first battery cell, the second battery cell, and the heat insulating material.
    Type: Application
    Filed: February 13, 2019
    Publication date: June 13, 2019
    Inventors: SHIGEAKI SAKATANI, TOORU WADA
  • Publication number: 20190161909
    Abstract: Used is a method for producing a thermal insulation sheet, including: composite-forming including impregnating a nonwoven fabric with a basic sol prepared by adding a carbonate ester to a water glass composition to form a hydrogel-nonwoven fabric composite; surface-modifying including mixing the composite with a silylating agent for surface modification; and drying including removing liquid contained in the composite through drying at a temperature lower than the critical temperature of the liquid under a pressure lower than the critical pressure of the liquid. Used is a thermal insulation sheet including an aerogel and a nonwoven fabric, where the thermal insulation sheet exhibits a compressibility of 40% or lower at 0.30 to 5.0 MPa.
    Type: Application
    Filed: November 30, 2018
    Publication date: May 30, 2019
    Inventors: Kazuma OIKAWA, Tooru WADA, Shinji OKADA, Shigeaki SAKATANI, Rikako SHONO
  • Publication number: 20180245731
    Abstract: Heat-insulation materials that can be placed along the lines of heat sources, heat-insulation structures using the same, and processes for producing the same. A heat-insulation material, that includes: fiber sheets that each have fibers and an aerogel and that have different sizes; and at least one covering material that covers the fiber sheets, or at least one elastic material that includes the fiber sheets. The at least one covering material may include a first covering material and a second covering material.
    Type: Application
    Filed: February 14, 2018
    Publication date: August 30, 2018
    Inventors: DAIDO KOHMYOHJI, KAZUMA OIKAWA, TAKASHI TSURUTA, TOORU WADA, SHIGEAKI SAKATANI, HIDENORI MIYAKAWA
  • Patent number: 10042092
    Abstract: A heat-insulation material does not cause deterioration in heat-insulation performance and any loss of components included therein, and possesses an excellent radiation-preventing function. The heat-insulation material includes: a first heat-insulation layer that includes a first silica xerogel and a first radiation-preventing material; and a third heat-insulation layer that includes a third silica xerogel and second fibers, wherein the first heat-insulation layer and the third heat-insulation layer are layered. An electronic device includes the heat-insulation material. Yet further disclosed is a method for producing the heat-insulation material.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: August 7, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tooru Wada, Shigeaki Sakatani
  • Publication number: 20180156550
    Abstract: An object of the disclosure is to provide heat insulation materials that combine high heat insulation properties realizing effective heat insulation, and flame retardancy realizing prevention of fire spreading, and devices using the same. In order to achieve this object, disclosed are heat insulation materials, including: a silica xerogel; a carbon material; unwoven fabric fibers that retains the silica xerogel, and the carbon material. Further disclosed are devices, including the above-described heat insulation material, wherein the heat insulation material serves as a part of a heat-insulation or refrigeration structure, or is placed between a heat-producing component and a casing.
    Type: Application
    Filed: November 17, 2017
    Publication date: June 7, 2018
    Inventors: KAZUMA OIKAWA, KEI TOYOTA, SHIGEAKI SAKATANI, DAIDO KOHMYOHJI, TATSUHIRO OOSHIRO, TOORU WADA
  • Publication number: 20180024281
    Abstract: A heat-insulation material does not cause deterioration in heat-insulation performance and any loss of components included therein, and possesses an excellent radiation-preventing function. The heat-insulation material includes: a first heat-insulation layer that includes a fist silica xerogel and a first radiation-preventing material; and a third heat-insulation layer that includes a third silica xerogel and second fibers, wherein the first heat-insulation layer and the third heat-insulation layer are layered. An electronic device includes the heat-insulation, material. Yet further disclosed is a method for producing the heat-insulation material.
    Type: Application
    Filed: July 6, 2017
    Publication date: January 25, 2018
    Inventors: Tooru WADA, Shigeaki SAKATANI
  • Patent number: 8726060
    Abstract: An adjustment circuit including tri-state circuits is provided between a transmitter circuit and a receiver circuit. Jitter generated by transmission of a signal over a long-distance interconnect is reduced by being converted into jitter of control signals generated by a pulse generator circuit in the tri-state circuits.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: May 13, 2014
    Assignee: Panasonic Corporation
    Inventor: Tooru Wada
  • Publication number: 20120098353
    Abstract: An adjustment circuit including tri-state circuits is provided between a transmitter circuit and a receiver circuit. Jitter generated by transmission of a signal over a long-distance interconnect is reduced by being converted into jitter of control signals generated by a pulse generator circuit in the tri-state circuits.
    Type: Application
    Filed: January 3, 2012
    Publication date: April 26, 2012
    Applicant: Panasonic Corporation
    Inventor: Tooru WADA
  • Patent number: 7218160
    Abstract: A semiconductor integrated circuit according to the present invention comprises a latch circuit, a retaining circuit, and a feedback circuit, wherein the latch circuit inputs therein an input data signal, a clock signal and a feedback signal and outputs an output data signal, the retaining circuit retains the output data signal, and the feedback circuit inputs therein the input data signal and the output data signal to thereby generate the feedback signal based on logic combinations of the input data signal and the output data signal, and an internal operation of the latch circuit is turned on/off by means of the feedback signal.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: May 15, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tooru Wada, Masaya Sumita
  • Publication number: 20050040873
    Abstract: A semiconductor integrated circuit according to the present invention comprises a latch circuit, a retaining circuit, and a feedback circuit, wherein the latch circuit inputs therein an input data signal, a clock signal and a feedback signal and outputs an output data signal, the retaining circuit retains the output data signal, and the feedback circuit inputs therein the input data signal and the output data signal to thereby generate the feedback signal based on logic combinations of the input data signal and the output data signal, and an internal operation of the latch circuit is turned on/off by means of the feedback signal.
    Type: Application
    Filed: August 20, 2004
    Publication date: February 24, 2005
    Inventors: Tooru Wada, Masaya Sumita
  • Patent number: 4368043
    Abstract: An adhesive cementing agent is provided for the hard tissues of the human body, which contains a phosphoric or phosphonic acid ester compound containing at least one polymerizable functional group and either a group of the formula ##STR1## or a group of the formula ##STR2## or a high molecular weight compound obtainable by polymerizing the compound either alone or as a comonomer unit. This adhesive cementing agent has a high affinity for the tooth, bone and other hard tissues of the human body and enjoys prolonged stability in wet environments.
    Type: Grant
    Filed: May 14, 1980
    Date of Patent: January 11, 1983
    Assignee: Kuraray Company, Limited
    Inventors: Junichi Yamauchi, Eiichi Masuhara, Nobuo Nakabayashi, Kyoichiro Shibatani, Tooru Wada
  • Patent number: 4259117
    Abstract: A dental filling agent is provided, which contains a phosphoric or phosphonic acid ester compound containing at least one polymerizable functional group and either a group of the formula ##STR1## or a group of the formula ##STR2## or a high molecular weight compound obtainable by polymerizing the compound either alone or as a comonomer unit. This agent has a high bonding affinity for the tooth and enjoys prolonged stability in wet environments.
    Type: Grant
    Filed: August 25, 1978
    Date of Patent: March 31, 1981
    Assignee: Kuraray Co., Ltd.
    Inventors: Junichi Yamauchi, Eiichi Masuhara, Nobuo Nakabayashi, Kyoichiro Shibatani, Tooru Wada
  • Patent number: 4259075
    Abstract: A tooth cavity is filled by applying to the walls of the tooth cavity a lining composition comprising a phosphoric or phosphonic acid ester compound containing at least one radical polymizerable vinyl group and at least one ##STR1## group, wherein said lining composition contains said phosphoric or phosphonic acid ester compound in a proportion of not less than 0.1 weight percent, as phosphorus, and then filling the remainder of the cavity with a dental filling material which comprises a polymerizable monomer, a filler and a curing agent.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: March 31, 1981
    Assignee: Kuraray Co., Ltd.
    Inventors: Junichi Yamauchi, Eiichi Masuhara, Nobuo Nakabayashi, Kyoichiro Shibatani, Tooru Wada