Patents by Inventor Takashi Kawasaki

Takashi Kawasaki 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: 10605667
    Abstract: An infrared sensor comprises a base substrate including a recess, a bolometer infrared ray receiver, and a Peltier device. The bolometer infrared ray receiver comprises a resistance variable layer, a bolometer first beam, and a bolometer second beam. The Peltier device comprises a Peltier first beam formed of a p-type semiconductor material and a Peltier second beam formed of an n-type semiconductor material. The Peltier device is in contact with a back surface of the bolometer infrared ray receiver. One end of each of the bolometer first beam, the bolometer second beam, the Peltier first beam, and the Peltier second beam is connected to the base substrate. The bolometer infrared ray receiver and the Peltier device are suspended above the base substrate. Each of the bolometer first beam, the bolometer second beam, the Peltier first beam, and the Peltier second beam has a phononic crystal structure including a plurality of through holes arranged regularly.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: March 31, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takashi Kawasaki, Kouhei Takahashi, Naoki Tambo, Yasuyuki Naito
  • Publication number: 20200088575
    Abstract: Spectral apparatus includes sensors that output signals indicating the respective energy amounts of a plurality of wavelength components. For each of the sensors, its reference spectral sensitivity is acquired, and an indicator indicating the reference spectral sensitivity of the sensor, is acquired. The deviation of an indicator indicating the spectral sensitivity of the sensor from the indicator indicating the reference spectral sensitivity of the sensor, is expressed by a linear function of an indicator indicating a mechanical error in the spectral apparatus. The indicator indicating the mechanical error in the spectral apparatus, is acquired to adapt a spectral sensitivity set of sensors to a signal set output by the sensors. For each of the sensors, the deviation of the indicator indicating the spectral sensitivity of the sensor from the indicator indicating the reference spectral sensitivity of the sensor, is acquired, so that the spectral sensitivity of the sensor is acquired.
    Type: Application
    Filed: July 6, 2016
    Publication date: March 19, 2020
    Inventors: Yoshiroh NAGAI, Toshio KAWANO, Takashi KAWASAKI
  • Publication number: 20200045779
    Abstract: A small diameter sheath heater with improved reliability is provided. The sheath heater according to one embodiment of the present invention includes a metal sheath, a heating wire having a band shape, the heating wire arranged with a gap within the metal sheath so as to rotate with respect to an axis direction of the metal sheath, an insulating material arranged in the gap, and connection terminals arranged at one end of the metal sheath, the connection terminals electrically connected with both ends of the heating wire respectively.
    Type: Application
    Filed: October 15, 2019
    Publication date: February 6, 2020
    Inventors: Toshihiko HANAMACHI, Kenji SEKIYA, Daisuke HASHIMOTO, Satoshi HIRANO, Masaru TAKIMOTO, Go TAKAHARA, Yoshihito ARAKI, Arata TATSUMI, Takashi KAWASAKI, Yuki TOYAMA, Satoshi ANZAI
  • Publication number: 20200003625
    Abstract: An infrared sensor according to the present disclosure includes base substrate, infrared receiver, and beam. The beam includes connective portion connecting with the base substrate and/or a member on the base substrate, and separated portion separated from the base substrate. The infrared receiver and the beam are joined with each other at the separated portion. The infrared receiver is supported by the beam in a state where the infrared receiver is separated from the base substrate. The beam includes junction part joined to the infrared receiver, and section positioned between junction part and the connective portion, and section includes a phononic crystal structure defined by a plurality of through holes orderly arranged. The crystal structure includes a first domain and a second domain that are phononic crystal domains.
    Type: Application
    Filed: September 10, 2019
    Publication date: January 2, 2020
    Inventors: NAOKI TAMBO, KOUHEI TAKAHASHI, TAKASHI KAWASAKI, KUNIHIKO NAKAMURA, MASAKI FUJIKANE, YASUYUKI NAITO
  • Publication number: 20190300633
    Abstract: Provided are an acrylic rubber composition having higher tensile properties and higher heat resistance and a vulcanizate thereof. An acrylic rubber composition includes 1 to 25 parts by mass of a layered clay mineral relative to 100 parts by mass of an acrylic rubber. The acrylic rubber is a copolymer of a (meth)acrylic acid alkyl ester and a curesite monomer.
    Type: Application
    Filed: June 27, 2017
    Publication date: October 3, 2019
    Applicants: DENKA COMPANY LIMITED, INDIAN INSTITUTE OF TECHNOLOGY KHARAGPUR
    Inventors: Tatsuya NAKANO, Takashi KAWASAKI, Toshiaki MIYAUCHI, Tatsunori HORIGUCHI, Tuhin SAHA, Anil K. BHOWMICK
  • Publication number: 20190293490
    Abstract: An infrared sensor is formed in such a manner that an infrared receiver and a base substrate are spaced with a beam made of a thin-film phononic crystal in which through holes are arranged periodically. The beam made of a phononic crystal is formed in such a manner that a period P of through holes increases at arbitrary intervals in a direction from the infrared receiver toward the base substrate.
    Type: Application
    Filed: June 13, 2019
    Publication date: September 26, 2019
    Inventors: Kouhei TAKAHASHI, Takashi KAWASAKI, Yasuyuki NAITO, Morio TOMIYAMA
  • Publication number: 20190285540
    Abstract: The reflection characteristic measuring device according to the present invention is a device that includes a diffuse reflecting surface and measures a plurality of mutually different types of reflection characteristics by using a plurality of optical systems having mutually different geometries, which corrects the reflection characteristics to be measured by an error generated when light emitted from an object of measurement is reflected from the diffuse reflecting surface and illuminates the object of measurement. The reflection characteristic measuring device according to the present invention is therefore capable of reducing errors resulting from recursive diffused illumination.
    Type: Application
    Filed: May 24, 2017
    Publication date: September 19, 2019
    Inventors: Toshio KAWANO, Takashi KAWASAKI
  • Publication number: 20190288280
    Abstract: Provided is positive electrode material for a highly safe lithium-ion secondary battery that can charge and discharge a large current while having long service life. Disclosed are composite particles comprising: particles of lithium-containing phosphate; and carbon coating comprising at least one carbon material selected from the group consisting of (i) fibrous carbon material, (ii) chain-like carbon material, and (iii) carbon material produced by linking together fibrous carbon material and chain-like carbon material, wherein each particle is coated with the carbon coating. The fibrous carbon material is preferably a carbon nanotube with an average fiber size of 5 to 200 nm. The chain-like carbon material is preferably carbon black produced by linking, like a chain, primary particles with an average particle size of 10 to 100 nm. The lithium-containing phosphate is preferably LiFePO4, LiMnPO4, LiMnxFe(1-x)PO4, LiCoPO4, or Li3V2(PO4)3.
    Type: Application
    Filed: June 3, 2019
    Publication date: September 19, 2019
    Applicant: DENKA COMPANY LIMITED
    Inventors: Takashi KAWASAKI, Nobuyuki YOSHINO, Hiroshi MURATA, Takehiko SAWAI, Shinji SAITO, Kazunori URAO
  • Publication number: 20190256701
    Abstract: Provided are an acrylic rubber composition having higher tensile properties and higher heat resistance and a vulcanizate thereof. The present invention provides an acrylic rubber composition includes 0.1 to 50 parts by mass of a carbon material includes graphene oxide, relative to 100 parts by mass of an acrylic rubber.
    Type: Application
    Filed: June 27, 2017
    Publication date: August 22, 2019
    Inventors: Tatsuya NAKANO, Takashi KAWASAKI, Toshiaki MIYAUCHI, Tatsunori HORIGUCHI, Tuhin SAHA, Anil K BHOWMICK
  • Publication number: 20190219448
    Abstract: An infrared sensor is formed in such a manner that an infrared receiver and a base substrate are spaced with a beam made of a thin-film phononic crystal in which through holes are arranged periodically. The beam made of a phononic crystal is formed in such a manner that a period P of through holes increases at arbitrary intervals in a direction from the infrared receiver toward the base substrate.
    Type: Application
    Filed: March 20, 2019
    Publication date: July 18, 2019
    Inventors: Kouhei TAKAHASHI, Takashi KAWASAKI, Yasuyuki NAITO, Morio TOMIYAMA
  • Publication number: 20190188173
    Abstract: A bus control circuit for transferring an exclusive command between first and second bus specifications by mutually converting a first exclusive command of the first bus specification which deals with an exclusive access, and a second exclusive command of the second bus specification which doesn't deal with the exclusive access, includes an exclusive command conversion circuit receiving the first exclusive command, converting and outputting the second exclusive command, when converting from the first to second exclusive commands; an exclusive command generation circuit receiving the second exclusive command and generating the first exclusive command, when converting from the second to first exclusive commands; an exclusive response issuing circuit issuing exclusive response information for the second exclusive command, when converting from the second to first exclusive commands; and an exclusive response receiving circuit receiving exclusive response information for the second exclusive command, when converti
    Type: Application
    Filed: February 12, 2019
    Publication date: June 20, 2019
    Inventors: Takayuki OTANI, Teruhiko KAMIGATA, Takashi KAWASAKI, Eiichi NIMODA
  • Publication number: 20190178718
    Abstract: An infrared sensor comprises a base substrate including a recess, a bolometer infrared ray receiver, and a Peltier device. The bolometer infrared ray receiver comprises a resistance variable layer, a bolometer first beam, and a bolometer second beam. The Peltier device comprises a Peltier first beam formed of a p-type semiconductor material and a Peltier second beam formed of an n-type semiconductor material. The Peltier device is in contact with a back surface of the bolometer infrared ray receiver. One end of each of the bolometer first beam, the bolometer second beam, the Peltier first beam, and the Peltier second beam is connected to the base substrate. The bolometer infrared ray receiver and the Peltier device are suspended above the base substrate. Each of the bolometer first beam, the bolometer second beam, the Peltier first beam, and the Peltier second beam has a phononic crystal structure including a plurality of through holes arranged regularly.
    Type: Application
    Filed: November 16, 2018
    Publication date: June 13, 2019
    Inventors: TAKASHI KAWASAKI, KOUHEI TAKAHASHI, NAOKI TAMBO, YASUYUKI NAITO
  • Patent number: 10281333
    Abstract: An infrared sensor is formed in such a manner that an infrared receiver and a base substrate are spaced with a beam made of a thin-film phononic crystal in which through holes are arranged periodically. The beam made of a phononic crystal is formed in such a manner that a period P of through holes increases at arbitrary intervals in a direction from the infrared receiver toward the base substrate.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: May 7, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kouhei Takahashi, Takashi Kawasaki, Yasuyuki Naito, Morio Tomiyama
  • Patent number: 10193141
    Abstract: An object of the present invention is to provide a positive electrode mixture capable of conducting stable charging and discharging with a less amount of gasses generated which has an operating voltage or an initial crystal phase transition voltage of not less than 4.5 V on the basis of lithium. The present invention relates to a positive electrode mixture comprising carbon black having a bulk density of not more than 0.1 g/cm3, a crystallite size of 10 to 40 ?, an iodine adsorption of 1 to 150 mg/g, a volatile content of not more than 0.1% and a metal impurity content of not more than 20 ppm, and a positive electrode active substance having an operating voltage or an initial crystal phase transition voltage of not less than 4.5 V on the basis of lithium.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: January 29, 2019
    Assignees: TODA KOGYO CORPORATION, DENKA COMPANY LIMITED
    Inventors: Akihisa Kajiyama, Teruaki Santoki, Daisuke Morita, Ryuta Masaki, Takahiko Sugihara, Tsuyoshi Wakiyama, Kazutoshi Matsumoto, Akira Yoda, Taro Inada, Hiroshi Yokota, Takashi Kawasaki
  • Publication number: 20190003087
    Abstract: A brushed circular knitted fabric has double loops stacked with at least two kinds of synthetic fiber multifilaments, wherein at least one surface of the circular knitted fabric has undergone brush processing, and the FT index represented by the equation (T2/T1) [T1: thickness (of one layer) according to a method prescribed by JIS, T2: thickness according to the same method prescribed by JIS at a state where the fabric is folded in two] is 2.1 or greater. The brushed circular knitted fabric has resiliency feeling and stretchability suitable for use in a coat or jacket, and is excellent in physical properties such as pilling resistance and changes in dimensions with washing.
    Type: Application
    Filed: July 21, 2016
    Publication date: January 3, 2019
    Inventors: Shigeto Matsumoto, Hiroshi Tanaka, Masanobu Sato, Takashi Kawasaki
  • Patent number: 10086593
    Abstract: Provided are a laminate body, a cross-linked product, and a molded member superior in interlayer adhesiveness. An acrylic elastomer layer 11 is prepared from an acrylic elastomer composition containing an epoxy group-containing acrylic elastomer as major component, an onium salt in an amount of 1 to 5 parts by mass and a polyol compound in an amount of 1 to 8 parts by mass with respect to 100 parts by mass of the acrylic elastomer, and a fluorine-based elastomer layer 12 is prepared from a fluorine-based elastomer composition containing a polyol crosslinking agent. The acrylic elastomer layer 11 and the fluorine-based elastomer layer 12 are laminated, to give a laminate body 1. The laminate body 1 is cross-linked, to give a cross-linked product or a molded member.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: October 2, 2018
    Assignee: DENKA COMPANY LIMITED
    Inventors: Takashi Kawasaki, Shogo Hagiwara, Toshiaki Miyauchi
  • Publication number: 20180230012
    Abstract: A method of producing a spherical boron nitride fine particle includes reacting ammonia with an alkoxide borate at an ammonia/alkoxide borate molar ratio of 1 to 10 in an inert gas stream at 750° C. or higher within 30 seconds, then applying heat treatment to a reaction product in an atmosphere of ammonia gas or a mixed gas of ammonia gas and an inert gas at 1,000 to 1,600° C. for at least 1 hour, and further firing the reaction product in an inert gas atmosphere at 1,800 to 2,200° C. for at least 0.5 hour.
    Type: Application
    Filed: April 17, 2018
    Publication date: August 16, 2018
    Inventors: Fumihiro KUROKAWA, Seitaro KOBAYASHI, Takashi KAWASAKI, Go TAKEDA, Yoshio BANDO, Dmitri GOLBERG
  • Patent number: 10017387
    Abstract: A boron nitride fine particle has low major diameter/thickness (aspect) ratio, high purity and high crystallinity, and also has an average particle diameter of 0.05 to 2.0 ?m, a graphitization index of 3 or less, and a total oxygen content of 0.20% by mass or less, with an average value of a major diameter/thickness ratio of scaly particles being 6.0 or less. A method of producing a boron nitride fine particle includes introducing ammonia and an alkoxide borate at an ammonia/alkoxide borate molar ratio of 1 to 5 in a reaction vessel in an inert gas atmosphere for heating at 800 to 1,350° C. within 30 seconds thereby obtaining a boron nitride precursor, and then heating the boron nitride precursor at 1,650 to 2,200° C. for at least 0.5 hour in an inert gas atmosphere.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: July 10, 2018
    Assignees: DENKA COMPANY LIMITED, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Fumihiro Kurokawa, Seitaro Kobayashi, Takashi Kawasaki, Go Takeda, Yoshio Bando, Dmitri Golberg
  • Patent number: 10017386
    Abstract: A spherical boron nitride fine particle suited for use as a highly thermoconductive filler or the like has an average particle diameter of 0.01 to 1.0 ?m, an orientation index of 1 to 15, a boron nitride purity of 98.0% by mass or greater, and an average circularity of 0.80 or greater. A method of producing a spherical boron nitride fine particle includes reacting ammonia with an alkoxide borate at an ammonia/alkoxide borate molar ratio of 1 to 10 in an inert gas stream at 750° C. or higher within 30 seconds, then applying heat treatment to a reaction product in an atmosphere of ammonia gas or a mixed gas of ammonia gas and an inert gas at 1,000 to 1,600° C. for at least 1 hour, and further firing the reaction product in an inert gas atmosphere at 1,800 to 2,200° C. for at least 0.5 hour.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: July 10, 2018
    Assignees: DENKA COMPANY LIMITED, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Fumihiro Kurokawa, Seitaro Kobayashi, Takashi Kawasaki, Go Takeda, Yoshio Bando, Dmitri Golberg
  • Publication number: 20170356806
    Abstract: An infrared sensor is formed in such a manner that an infrared receiver and a base substrate are spaced with a beam made of a thin-film phononic crystal in which through holes are arranged periodically. The beam made of a phononic crystal is formed in such a manner that a period P of through holes increases at arbitrary intervals in a direction from the infrared receiver toward the base substrate.
    Type: Application
    Filed: April 26, 2017
    Publication date: December 14, 2017
    Inventors: KOUHEI TAKAHASHI, TAKASHI KAWASAKI, YASUYUKI NAITO, MORIO TOMIYAMA