Patents by Inventor Takahiro Tomita

Takahiro Tomita 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: 20170023168
    Abstract: A porous plate-shaped filler is a plate shape having an aspect ratio of 3 or more, and has a minimum length of 0.1 to 50 ?m and a porosity of 20 to 90%. Furthermore, the porous plate-shaped filler 1 includes plate-shaped pores 2 having an aspect ratio of 1.5 or more. Consequently, in the porous plate-shaped filler, a thermal conductivity is low. The heat insulation film includes the porous plate-shaped filler, whereby a heat insulation effect of the heat insulation film can improve.
    Type: Application
    Filed: October 4, 2016
    Publication date: January 26, 2017
    Applicant: NGK INSULATORS, LTD.
    Inventors: Hiroharu KOBAYASHI, Takahiro TOMITA, Akinobu ORIBE
  • Patent number: 9552014
    Abstract: There is provided an electronic apparatus, including a first housing, a second housing which has a display section and a support member supporting the display section, and a housing connection section which rotatably connects the second housing with respect to the first housing. The support member includes a first support section connected to the housing connection section, a second support section which fixedly supports the display section, and a support connection section, positioned between the first support section and the second support section, which has a flexibility to rotatably connect the second support section with respect to the first support section.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: January 24, 2017
    Assignee: SONY CORPORATION
    Inventors: Takahiro Tomita, Takashi Sonehara, Minoru Shimizu, Takuya Motoishi, Naoki Ogishita, Yuuki Kubota, Ryousuke Tobiyama, Masanobu Yamaguchi, Kouichi Hiroyoshi, Kazuaki Takahashi
  • Publication number: 20160340256
    Abstract: The porous plate-shaped filler aggregate includes a plurality of the porous plate-shaped fillers. The porous plate-shaped fillers have a uniform plate shape with an aspect ratio of 3 or more, a minimum length of 0.1 to 50 ?m, a porosity of 20 to 99%, and the deviation of the maximum length among a plurality of the porous plate-shaped fillers, which is obtained by the following formula, is 10% or less. Deviation of the maximum length (%)=standard deviation of the maximum length/average value of the maximum length×100 (Here, ‘maximum length’ is the longest length when the porous plate-shaped fillers are held between a pair of parallel planes.
    Type: Application
    Filed: August 8, 2016
    Publication date: November 24, 2016
    Applicant: NGK INSULATORS, LTD.
    Inventors: Akinobu ORIBE, Hiroharu KOBAYASHI, Takahiro TOMITA, Shinsaku MAEDA, Yasutaka AWAKURA
  • Patent number: 9457345
    Abstract: There is disclosed a silicon carbide porous material having a high thermal shock resistance. The silicon carbide porous material of the present invention includes silicon carbide particles, metal silicon and an oxide phase, and the silicon carbide particles are bonded to one another via at least one of the metal silicon and the oxide phase. Furthermore, the oxide phase includes a parent phase, and a dispersion phase dispersed in the parent phase and having a higher thermal expansion coefficient than the parent phase. Here, a lower limit value of a content ratio of the dispersion phase in the oxide phase is preferably 1 mass %, and upper limit value of the content ratio of the dispersion phase in the oxide phase is 40 mass %. Furthermore, it is preferable that the parent phase is cordierite and that the dispersion phase is mullite.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: October 4, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Takahiro Tomita, Kiyoshi Matsushima, Katsuhiro Inoue, Yoshimasa Kobayashi
  • Publication number: 20160264479
    Abstract: The porous material has, as a framework of a porous structure, ZrO2 particles and a dissimilar material present on the surfaces of the ZrO2 particles, the dissimilar material includes at least one selected from a first group, at least one selected from a second group, or both of the at least one selected from the first group and the at least one selected from the second group, the first group is a group consisting of SiO2, TiO2, La2O3, Al2O3, SrCO3, Gd2O3, Nb2O5, Y2O3, and a complex oxide including two or more of the oxides, and the second group is a group consisting of SiO2, TiO2, La2O3, Al2O3, SrCO3, Gd2O3, Nb2O5, Y2O3, and a complex oxide including at least one selected from the group consisting of the complex oxide including two or more of the oxides, and ZrO2.
    Type: Application
    Filed: May 20, 2016
    Publication date: September 15, 2016
    Applicant: NGK INSULATORS, LTD.
    Inventors: Takahiro Tomita, Hiroharu Kobayashi, Akinobu Oribe
  • Patent number: 9440225
    Abstract: A silicon carbide porous body according to the present invention contains silicon carbide particles, metallic silicon, and an oxide phase, in which the silicon carbide particles are bonded together via at least one of the metallic silicon and the oxide phase. The primary component of the oxide phase is cordierite, and the open porosity is 10% to 40%. Preferably, the silicon carbide porous body contains 50% to 80% by weight of silicon carbide, 15% to 40% by weight of metallic silicon, and 1% to 25% by weight of cordierite. Preferably, the volume resistivity is 1 to 80 ?cm, and the thermal conductivity is 30 to 70 W/m·K.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: September 13, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Takahiro Tomita, Kiyoshi Matsushima, Katsuhiro Inoue, Yoshimasa Kobayashi
  • Publication number: 20160258383
    Abstract: In a heat-insulation film, porous plate fillers are dispersed in a matrix to bond the porous plate fillers. The porous plate filler includes plates having an aspect ratio of 3 or more, a minimum length of 0.1 to 50 ?m and a porosity of 20 to 90%. In the heat-insulation film, a volume ratio between the porous plate fillers and the matrix is from 50:50 to 95:5. In the heat-insulation film in which the porous plate fillers are used, a length of a heat transfer path increases and a thermal conductivity can be decreased, as compared with a case where spherical or cubic fillers are used.
    Type: Application
    Filed: May 18, 2016
    Publication date: September 8, 2016
    Applicant: NGK INSULATORS, LTD.
    Inventors: Hiroharu Kobayashi, Takahiro Tomita, Akinobu Oribe
  • Publication number: 20160195344
    Abstract: The thermal diode is formed of a first material as a ceramic material exhibiting thermal conductivity that increases in a certain temperature range of ?200° C. or higher but 1000° C. or lower and a second material exhibiting the thermal conductivity that decreases in the temperature range, the first material and the second material being bonded together. The first material has preferably a microstructure having a characteristic length La of 1 nm to 10 ?m.
    Type: Application
    Filed: February 16, 2016
    Publication date: July 7, 2016
    Applicant: NGK INSULATORS, LTD.
    Inventors: Takahiro Tomita, Kenkichi Nagai, Hiroharu Kobayashi
  • Publication number: 20160170444
    Abstract: There is provided an electronic apparatus, including a first housing, a second housing which has a display section and a support member supporting the display section, and a housing connection section which rotatably connects the second housing with respect to the first housing. The support member includes a first support section connected to the housing connection section, a second support section which fixedly supports the display section, and a support connection section, positioned between the first support section and the second support section, which has a flexibility to rotatably connect the second support section with respect to the first support section.
    Type: Application
    Filed: February 19, 2016
    Publication date: June 16, 2016
    Applicant: SONY CORPORATION
    Inventors: Takahiro TOMITA, Takashi Sonehara, Minoru Shimizu, Takuya Motoishi, Naoki Ogishita, Yuuki Kubota, Ryousuke Tobiyama, Masanobu Yamaguchi, Kouichi Hiroyoshi, Kazuaki Takahashi
  • Publication number: 20160137555
    Abstract: A ceramic material has a characteristic length La of a micro-structure thereof that satisfies 0.1 LAMFP?La?100 LAMFP, and has thermal conductivity that monotonously increases from room temperature to 100° C., where LAMFP denotes apparent mean free path of phonons at room temperature, and is defined as LAMFP=(3×thermal conductivity)/(heat capacity×speed of sound). The characteristic length La of the micro-structure is an interval between particles of different type of material when the ceramic material includes a composite material in which the different type of material is dispersed in a base material, is an interval between one pore and another pore when the ceramic material includes a porous body, and is the crystalline particle size (interval between one grain boundary and another grain boundary) when the ceramic material includes a polycrystalline body.
    Type: Application
    Filed: January 20, 2016
    Publication date: May 19, 2016
    Applicant: NGK INSULATORS, LTD.
    Inventors: Takahiro Tomita, Kenkichi Nagai, Hiroharu Kobayashi
  • Patent number: 9293791
    Abstract: Provide is a zinc secondary battery capable of preventing a short circuit between the positive and negative electrodes caused by zinc dendrites. The zinc secondary battery of the present invention comprises a positive electrode; a negative electrode containing zinc; an electrolytic solution in which the positive electrode and the negative electrode are immersed or with which the positive electrode and the negative electrode are in contact, wherein the electrolytic solution is an aqueous solution containing an alkali metal hydroxide; and a separator being placed between the positive electrode and the negative electrode and separating the positive electrode and the negative electrode from each other, wherein the separator comprises an inorganic solid electrolyte body having hydroxide ion conductivity.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: March 22, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Naohito Yamada, Kazuhiro Yamamoto, Takahiro Tomita, Haruo Otsuka
  • Patent number: 9284911
    Abstract: Provided is an engine combustion chamber structure. Also provided is an inner wall structure for a through channel, through which exhaust gas or intake gas of the engine passes. An engine combustion engine structure is provided with a heat-insulating member on the inner wall of an engine constituent member which constitutes an engine combustion chamber, the heat-insulating member containing a heat-insulating porous layer formed from ceramics, and a surface dense layer formed on the surface of the heat-insulating porous layer and formed from ceramics. The surface dense layer of the heat-insulating member has an open porosity of 5% or less, and preferably the heat-insulating porous layer has a larger open porosity than the open porosity of the surface dense layer.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 15, 2016
    Assignee: NGK INSULATORS, LTD.
    Inventors: Takahiro Tomita, Mikiya Ichimura, Shigeharu Hashimoto
  • Patent number: 9280181
    Abstract: There is provided an electronic apparatus, including a first housing, a second housing which has a display section and a support member supporting the display section, and a housing connection section which rotatably connects the second housing with respect to the first housing. The support member includes a first support section connected to the housing connection section, a second support section which fixedly supports the display section, and a support connection section, positioned between the first support section and the second support section, which has a flexibility to rotatably connect the second support section with respect to the first support section.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: March 8, 2016
    Assignee: SONY CORPORATION
    Inventors: Takahiro Tomita, Takashi Sonehara, Minoru Shimizu, Takuya Motoishi, Naoki Ogishita, Yuuki Kubota, Ryousuke Tobiyama, Masanobu Yamaguchi, Kouichi Hiroyoshi, Kazuaki Takahashi
  • Patent number: 9193125
    Abstract: A honeycomb structure mainly composed of cordierite and obtained by forming and firing a forming material containing a layered clay mineral whose layer charge (X) is 0.2<X?2 in addition to the cordierite forming material and an organic binder. A total amount of at least one element selected from a group consisting of sodium, potassium, and calcium contained in the layered clay mineral is set to 0.5% by mass or less in terms of oxide with respect to a total with the cordierite forming material, and a content ratio of the organic binder is set to 5 parts by mass or less with respect to 100 parts by mass in total of the cordierite forming material and the layered clay mineral.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: November 24, 2015
    Assignee: NGK Insulators, Ltd.
    Inventors: Takahiro Tomita, Shinji Kawasaki
  • Patent number: 9070953
    Abstract: Provided is a zinc-air secondary battery capable of preventing both of the short-circuiting between positive and negative electrodes caused by zinc dendrites and the carbon dioxide incorporation. This zinc-air secondary battery includes an air electrode (12) functioning as a positive electrode; an inorganic solid electrolyte body (14) provided in direct contact with one side of the air electrode and having hydroxide ion conductivity; a metal negative electrode (16) provided opposite to the air electrode with respect to the inorganic solid electrolyte body and comprising zinc or a zinc alloy; and an electrolyte solution in which the metal negative electrode is immersed, the electrolyte solution being separated from the air electrode by the inorganic solid electrolyte body.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: June 30, 2015
    Assignee: NGK Insulators, Ltd.
    Inventors: Naohito Yamada, Kazuhiro Yamamoto, Takahiro Tomita
  • Publication number: 20150104626
    Abstract: Provided are a heat-insulating film and a heat-insulating film structure with improved heat insulating effects. Also provided are a porous plate-shaped filler included in the heat-insulating film and a coating composition for forming the heat-insulating film. In a heat-insulating film of the present invention, porous plate-shaped fillers are dispersedly arranged in a matrix for binding the porous plate-shaped fillers. In the heat-insulating film, the porous plate-shaped fillers are preferred to be arranged (stacked) in a layered state. The porous plate-shaped filler is a plate with an aspect ratio of 3 or more, and has a minimum length of 0.1 to 50 ?m and a porosity of 20 to 99%. The heat-insulating film using the porous plate-shaped fillers ensures a longer length of heat transfer path compared with the case where spherical or cubic fillers are used. Accordingly, the thermal conductivity can be reduced.
    Type: Application
    Filed: December 18, 2014
    Publication date: April 16, 2015
    Applicant: NGK INSULATORS, LTD.
    Inventors: Takahiro Tomita, Shigeharu Hashimoto, Taku Nishigaki
  • Publication number: 20150040879
    Abstract: There is provided a structure of a combustion chamber for an engine which enhances a thermal efficiency of the engine to enhance a fuel efficiency, and an inner wall structure of a flow path through which an intake gas or an exhaust gas of the engine flows. The structure of the combustion chamber for the engine includes a heat-insulating member 1 including a heat-insulating layer 3 formed on the surface of an engine constituting member 21 constituting the combustion chamber for the engine and a dense surface layer 2 formed on the surface of the heat-insulating layer 3. Furthermore, the heat-insulating layer 3 includes ceramic and/or glass, and has pores of pore diameters of 10 to 500 nm and a porosity of 10 to 99%, and the dense surface layer 2 includes ceramic and/or glass and has a porosity of 5% or less.
    Type: Application
    Filed: August 18, 2014
    Publication date: February 12, 2015
    Inventors: Takahiro TOMITA, Mikiya ICHIMURA, Shigeharu HASHIMOTO
  • Publication number: 20140378297
    Abstract: There is disclosed a silicon carbide porous material having a high thermal shock resistance. The silicon carbide porous material of the present invention includes silicon carbide particles, metal silicon and an oxide phase, and the silicon carbide particles are bonded to one another via at least one of the metal silicon and the oxide phase. Furthermore, the oxide phase includes a parent phase, and a dispersion phase dispersed in the parent phase and having a higher thermal expansion coefficient than the parent phase. Here, a lower limit value of a content ratio of the dispersion phase in the oxide phase is preferably 1 mass %, and upper limit value of the content ratio of the dispersion phase in the oxide phase is 40 mass %. Furthermore, it is preferable that the parent phase is cordierite and that the dispersion phase is mullite.
    Type: Application
    Filed: September 10, 2014
    Publication date: December 25, 2014
    Inventors: Takahiro TOMITA, Kiyoshi MATSUSHIMA, Katsuhiro INOUE, Yoshimasa KOBAYASHI
  • Publication number: 20140352646
    Abstract: There are provided a heat-insulating member which enhances a thermal efficiency of an engine to enhance fuel efficiency, and a structure of a combustion chamber for the engine. A heat-insulating member 1 includes a substrate 5, an insulating porous layer 3, and a surface dense layer 2. The substrate 5, the insulating porous layer 3 and the surface dense layer 2 are formed of a ceramic material. The surface dense layer 2 has a porosity of 5% or less. Furthermore, the insulating porous layer 3 has a larger porosity than the surface dense layer 2. The substrate 5 sufficiently has a mechanical strength to exist in a self-supported manner. The heat-insulating member 1 is fixed to a piston 14 by mechanical fixing such as screwing or chemical fixing such as brazing.
    Type: Application
    Filed: August 20, 2014
    Publication date: December 4, 2014
    Applicant: NGK INSULATORS, LTD.
    Inventors: Takahiro Tomita, Mikiya Ichimura, Shigeharu Hashimoto
  • Publication number: 20140315099
    Abstract: Provide is a zinc secondary battery capable of preventing a short circuit between the positive and negative electrodes caused by zinc dendrites. The zinc secondary battery of the present invention comprises a positive electrode; a negative electrode containing zinc; an electrolytic solution in which the positive electrode and the negative electrode are immersed or with which the positive electrode and the negative electrode are in contact, wherein the electrolytic solution is an aqueous solution containing an alkali metal hydroxide; and a separator being placed between the positive electrode and the negative electrode and separating the positive electrode and the negative electrode from each other, wherein the separator comprises an inorganic solid electrolyte body having hydroxide ion conductivity.
    Type: Application
    Filed: July 3, 2014
    Publication date: October 23, 2014
    Inventors: Naohito YAMADA, Kazuhiro YAMAMOTO, Takahiro TOMITA, Haruo OTSUKA