Patents by Inventor Naoki Toshima

Naoki Toshima 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: 20220045256
    Abstract: A method of producing a shaped product for a thermoelectric conversion element is provided. The method comprises: mixing a coarse mixture that contains metal nanoparticle-supporting carbon nanotubes, a resin component, and a solvent by dispersion treatment that brings about a cavitation effect or a crushing effect, to obtain a composition for a thermoelectric conversion element; and removing the solvent from the composition for a thermoelectric conversion element.
    Type: Application
    Filed: October 26, 2021
    Publication date: February 10, 2022
    Applicants: ZEON CORPORATION, PUBLIC UNIVERSITY CORPORATION TOKYO UNIVERSITY OF SCIENCE, SANYO ONODA YAMAGUO
    Inventors: Naoki TOSHIMA, Yukihide SHIRAISHI, Hitoshi ASANO, Keisuke OSHIMA, Junta INOUE
  • Publication number: 20190013454
    Abstract: A composition for a thermoelectric conversion element that enables a thermoelectric conversion element to fully exhibit excellent thermoelectric conversion characteristics is provided. A composition for a thermoelectric conversion element comprises: metal nanoparticle-supporting carbon nanotubes, a resin component; and a solvent.
    Type: Application
    Filed: January 13, 2017
    Publication date: January 10, 2019
    Applicants: ZEON CORPORATION, PUBLIC UNIVERSITY CORPORATION TOKYO UNIVERSITY OF SCIENCE, SANYO ONODA YAMAGUCHI
    Inventors: Naoki TOSHIMA, Yukihide SHIRAISHI, Hitoshi ASANO, Keisuke OSHIMA, Junta INOUE
  • Patent number: 10084124
    Abstract: Provided are a resin composition that enables simple formation of a film having excellent thermoelectric conversion characteristics and flexibility, and a film that is formed using the resin composition and that has excellent thermoelectric conversion characteristics and flexibility. A thermoelectric conversion material-containing resin composition contains (A) an insulating resin, (B) an inorganic thermoelectric conversion material, and (C) a charge transport material. A film is formed according to a commonly known method using the thermoelectric conversion material-containing resin composition. It is preferable that (B) the inorganic thermoelectric conversion material is in the form of fine tubes or fine wires. Single-walled carbon nanotubes are particularly preferable as (B) the inorganic thermoelectric conversion material.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: September 25, 2018
    Assignee: ZEON CORPORATION
    Inventors: Naoki Toshima, Keisuke Oshima, Yosuke Ohkawachi, Shoko Ichikawa
  • Publication number: 20170069812
    Abstract: Provided are a resin composition that enables simple formation of a film having excellent thermoelectric conversion characteristics and flexibility, and a film that is formed using the resin composition and that has excellent thermoelectric conversion characteristics and flexibility. A thermoelectric conversion material-containing resin composition contains (A) an insulating resin, (B) an inorganic thermoelectric conversion material, and (C) a charge transport material. A film is formed according to a commonly known method using the thermoelectric conversion material-containing resin composition. It is preferable that (B) the inorganic thermoelectric conversion material is in the form of fine tubes or fine wires. Single-walled carbon nanotubes are particularly preferable as (B) the inorganic thermoelectric conversion material.
    Type: Application
    Filed: March 4, 2015
    Publication date: March 9, 2017
    Applicant: ZEON CORPORATION
    Inventors: Naoki TOSHIMA, Keisuke OSHIMA, Yosuke OHKAWACHI, Shoko ICHIKAWA
  • Publication number: 20160122644
    Abstract: The present invention provides a method of uniformizing output light from a liquid crystal display element and a liquid crystal display element in which output light is uniformized. The method of uniformizing output light of a liquid crystal display element includes: using a composition containing nanoparticles with an average particle diameter of 1 nm to 100 nm as a liquid crystal composition included in a liquid crystal layer in the liquid crystal display element having the liquid crystal layer interposed between a pair of substrates, and uniformizing light output from the liquid crystal display element. The present invention also provides a liquid crystal display element obtained by applying the method of uniformizing output light.
    Type: Application
    Filed: October 27, 2015
    Publication date: May 5, 2016
    Applicants: TOKYO UNIVERSITY OF SCIENCE FOUNDATION, DIC CORPORATION
    Inventors: Shunsuke Kobayashi, Yukihide Shiraishi, Naoki Toshima, Mitsuhiro Akimoto, Kenzo Takeishi, Haruyoshi Takatsu, Kunihiko Kotani
  • Patent number: 8287768
    Abstract: A thermoelectric conversion device including a thermoelectric conversion material including a polythienylenevinylene including units represented by formula (1), wherein R1 and R2 are each independently a hydrogen atom, or an alkoxy or alkyl group, and the thermoelectric conversion material is doped with a dopant.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: October 16, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Yuji Hiroshige, Naoki Toshima
  • Patent number: 7838043
    Abstract: A scavenger of superoxide anion or nitric oxide comprising finepowder of a transition metal such as platinum. The scavenger is preferably provided as an aqueous solution containing transition metal colloid at a ratio of 1 mM or less per 1,000 ml, and can efficiently eliminate excessive superoxide anions or nitric oxide in vivo.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: November 23, 2010
    Assignee: Apt Co., Ltd
    Inventors: Yusei Miyamoto, Naoki Toshima, Takao Asano
  • Publication number: 20100252780
    Abstract: A thermoelectric conversion device including a thermoelectric conversion material including a polythienylenevinylene including units represented by formula (1), wherein R1 and R2 are each independently a hydrogen atom, or an alkoxy or alkyl group, and the thermoelectric conversion material is doped with a dopant.
    Type: Application
    Filed: September 10, 2008
    Publication date: October 7, 2010
    Inventors: Yuji Hiroshige, Naoki Toshima
  • Publication number: 20100224826
    Abstract: A task of the present invention is to provide a method for preparing a dispersion liquid comprising liquid crystal-compatible particles and a paste thereof, which is commercially advantageous in that a dispersion liquid comprising liquid crystal-compatible particles and a uniform liquid crystal-compatible particle paste can be obtained using a method which can easily achieve mass-production.
    Type: Application
    Filed: January 30, 2007
    Publication date: September 9, 2010
    Inventors: Shigeyoshi Nishino, Shuji Yokoyama, Shinya Takigawa, Naoki Toshima
  • Patent number: 7771799
    Abstract: A LCD device element of frequency modulation mode enables high speed on and off control of an electro-optical response by switching the frequency of applied electric field. The LCD device element is capable of changing a frequency modulation range freely. The LCD device element has conductive layers between two parallel substrates; liquid crystal (LC) alignment layers with pre-tilt angle on these conductive layers; and a LC layer between the two liquid crystal alignment layers. LC soluble particles (nanoparticles composing a core and a liquid crystal molecules or like molecules on its periphery), are in the LC layer. A control circuit applies voltage while modulating frequency on the conductive layer for varying light transmittance of the LC layer. Under a constant voltage, an electro-optical response is turned on by switching the frequency from low to high frequency and is turned off by switching the frequency from high to low frequency. The electro-optical response is varied also by varying voltage.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: August 10, 2010
    Assignees: Dai Nippon Printing Co., Ltd.
    Inventors: Shunsuke Kobayashi, Naoki Toshima, Jirakorn Thisayukta, Yukihide Shiraishi, Shigenobu Sano, Atsushi Baba
  • Publication number: 20090257907
    Abstract: SmCo-based alloy nanoparticles composed mainly of a SmCo-based alloy containing Sm and Co as constituent elements, wherein the content of metal elements other than Sm and Co is 0.05-20 wt % with respect to the SmCo-based alloy.
    Type: Application
    Filed: March 4, 2009
    Publication date: October 15, 2009
    Applicants: TDK Corporation, Tokyo University of Science Educational Foundation Administrative Organization
    Inventors: Mamoru Satoh, Naoki Toshima, Mutsuko Kinjo, Haruki Kinjo, Shiho Tokonami
  • Patent number: 7452554
    Abstract: A nanocolloidal platinum dispersion comprising nanocolloidal platinum and a polyacrylic acid salt, the nanocolloidal platinum having an average particle size of 1-5 nm, 90% or more of the nanocolloidal platinum having a particle size in a range of 0.1-10 nm, its production method, and a drink containing such a nanocolloidal platinum dispersion.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: November 18, 2008
    Assignee: APT Co, Ltd.
    Inventors: Yusei Miyamoto, Masashi Kajita, Naoki Toshima
  • Publication number: 20060204593
    Abstract: A scavenger of superoxide anion or nitric oxide comprising finepowder of a transition metal such as platinum. The scavenger is preferably provided as an aqueous solution containing transition metal colloid at a ratio of 1 mM or less per 1,000 ml, and can efficiently eliminate excessive superoxide anions or nitric oxide in vivo.
    Type: Application
    Filed: February 18, 2004
    Publication date: September 14, 2006
    Inventors: Yusei Miyamoto, Naoki Toshima, Takao Asano
  • Publication number: 20060196310
    Abstract: The present invention relates to a ternary metal colloid comprising metal nanoparticles which is composed of three different metal elements and has a three layer core/shell structure, and to a process for producing the ternary metal colloid. The metal colloid according to the present invention can be produced by mixing a metal colloid comprising metal nanoparticles which is composed of two metal elements and has a core/shell structure with a metal colloid comprising metal nanoparticles which is composed of a metal element different from the two metal elements. A catalyst produced from the metal colloid produced with this process has an extremely high catalytic activity.
    Type: Application
    Filed: May 6, 2004
    Publication date: September 7, 2006
    Inventors: Naoki Toshima, Yukihide Shiraishi, Masao Kanemaru
  • Publication number: 20060024382
    Abstract: A nanocolloidal platinum dispersion comprising nanocolloidal platinum and a polyacrylic acid salt, the nanocolloidal platinum having an average particle size of 1-5 nm, 90% or more of the nanocolloidal platinum having a particle size in a range of 0.1-10 nm, its production method, and a drink containing such a nanocolloidal platinum dispersion.
    Type: Application
    Filed: June 9, 2004
    Publication date: February 2, 2006
    Inventors: Yusei Miyamoto, Masashi Kajita, Naoki Toshima
  • Publication number: 20050079296
    Abstract: A LCD device element of frequency modulation mode enables high speed on and off control of an electro-optical response by switching the frequency of applied electric field. The LCD device element is capable of changing a frequency modulation range freely. The LCD device element has conductive layers between two parallel substrates; liquid crystal (LC) alignment layers with pre-tilt angle on the conductive layers; and a LC layer between the two liquid crystal alignment layers. LC soluble particles nanoparticles composing a core and a liquid crystal molecules or like molecules on its periphery), are in the LC layer. A control circuit applies voltage while modulating frequency on the conductive layer for varying light transmittance of the LC layer. Under a constant voltage, an electro-optical response is turned on by switching the frequency from low to high frequency and is turned off by switching the frequency from high to low frequency. The electro-optical response is varied also by varying voltage.
    Type: Application
    Filed: April 13, 2004
    Publication date: April 14, 2005
    Inventors: Shunsuke Kobayashi, Naoki Toshima, Jirakorn Thisayukta, Yukihide Shiraishi, Shigenobu Sano, Atsushi Baba
  • Patent number: 6875253
    Abstract: A novel method for preparing fine particles comprising a transition metal and a noble metal which are monodispersed and have almost no particle diameter distribution, and are transferable to a CuAu-I type L10 ordered phase, with safety and at a low cost, wherein a salt or a complex of at least one transition metal selected from Fe and Co and a salt or a complex of at least one transition metal selected from Pt and Pd (exclusive of the combination of Co—Pd) is dissolved in an organic solvent miscible with water or an alcohol in the presence of an organic protecting agent, and the resultant solution is heated under reflux in the presence of an alcohol in an inert atmosphere, to thereby prepare a binary alloy comprising a transition metal and a noble metal, or a salt or a complex of at least one element selected from the group consisting of Cu, Bi, Sb, Sn, Pb and Ag is further dissolved in the above solvent and the resultant solution is heated under reflux in the presence of an alcohol in an inert atmosphere, to
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: April 5, 2005
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Hideo Daimon, Yukiko Kurobe, Naoki Toshima
  • Patent number: 6759587
    Abstract: The present invention provides the novel thermoelectric materials having, in combination, processability and excellent thermoelectric characteristics, the thermoelectric materials being able to provide n-type thermoelectric characteristics in accordance with the nature of the employed inorganic thermoelectric materials; a thermoelectric device employing the materials; and a method for producing the thermoelectric materials.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: July 6, 2004
    Assignees: Hokushin Corporation
    Inventors: Naoki Toshima, Hu Yan, Kohsuke Kamei, Akinori Tsubata, Takashi Tokuda
  • Publication number: 20040074336
    Abstract: A novel method for preparing fine particles comprising a transition metal and a noble metal which are monodispersed and have almost no particle diameter distribution, and are transferable to a CuAu-I type L10 ordered phase, with safety and at a low cost, wherein a salt or a complex of at least one transition metal selected from Fe and Co and a salt or a complex of at least one transition metal selected from Pt and Pd (exclusive of the combination of Co-Pd) is dissolved in an organic solvent miscible with water or an alcohol in the presence of an organic protecting agent, and the resultant solution is heated under reflux in the presence of an alcohol in an inert atmosphere, to thereby prepare a binary alloy comprising a transition metal and a noble metal, or a salt or a complex of at least one element selected from the group consisting of Cu, Bi, Sb, Sn, Pb and Ag is further dissolved in the above solvent and the resultant solution is heated under reflux in the presence of an alcohol in an inert atmosphere, to
    Type: Application
    Filed: December 3, 2003
    Publication date: April 22, 2004
    Inventors: Hideo Daimon, Yukiko Kurobe, Naoki Toshima
  • Publication number: 20030032709
    Abstract: The present invention provides the novel thermoelectric materials having, in combination, processability and excellent thermoelectric characteristics, the thermoelectric materials being able to provide n-type thermoelectric characteristics in accordance with the nature of the employed inorganic thermoelectric materials; a thermoelectric device employing the materials; and a method for producing the thermoelectric materials.
    Type: Application
    Filed: April 26, 2002
    Publication date: February 13, 2003
    Inventors: Naoki Toshima, Hu Yan, Kohsuke Kamei, Akinori Tsubata, Takashi Tokuda