Patents by Inventor Hitoshi Iwadate

Hitoshi Iwadate 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: 20240042730
    Abstract: A fiber composite material includes a base material and a composite layer. The composite layer includes a fiber layer made from carbon fibers, a conductive layer made from a conductor, and a matrix resin impregnated into the fiber layer and the conductive layer. A first resin portion of the matrix resin is impregnated into the fiber layer, and a second resin portion of the matrix resin is impregnated into the conductive layer. The matrix resin is a single resin layer in which an interface does not exist between the first resin portion and the second resin portion. The composite layer is bonded to the base material via the matrix resin.
    Type: Application
    Filed: July 27, 2023
    Publication date: February 8, 2024
    Inventor: Hitoshi Iwadate
  • Patent number: 10576700
    Abstract: A first continuous fiber component and a second continuous fiber component are stacked with a non-woven fabric interposed therebetween to thereby prepare a fiber base material. The fiber base material is placed between an upper mold and a lower mold. The upper mold and the lower mold are brought close to each other to thereby form an enclosed space therebetween. The enclosed space is larger in volume than a product cavity. A liquid matrix resin is supplied to the enclosed space. The upper mold and the lower mold are brought closer to each other to thereby form the product cavity in a manner that a pressing load is applied to the fiber base material. Then, the liquid matrix resin with which the fiber base material has been impregnated is hardened in the product cavity, whereby a fiber-reinforced plastic molded article is produced.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: March 3, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masaki Namaizawa, Makoto Uda, Hiroyuki Tanaka, Hitoshi Iwadate, Takuya Fujii, Satoru Shinkawa, Iku Koike, Kazuhiro Kagawa, Hirohide Azuma
  • Publication number: 20180169973
    Abstract: A first continuous fiber component and a second continuous fiber component are stacked with a non-woven fabric interposed therebetween to thereby prepare a fiber base material. The fiber base material is placed between an upper mold and a lower mold. The upper mold and the lower mold are brought close to each other to thereby form an enclosed space therebetween. The enclosed space is larger in volume than a product cavity. A liquid matrix resin is supplied to the enclosed space. The upper mold and the lower mold are brought closer to each other to thereby form the product cavity in a manner that a pressing load is applied to the fiber base material. Then, the liquid matrix resin with which the fiber base material has been impregnated is hardened in the product cavity, whereby a fiber-reinforced plastic molded article is produced.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 21, 2018
    Inventors: Masaki Namaizawa, Makoto Uda, Hiroyuki Tanaka, Hitoshi Iwadate, Takuya Fujii, Satoru Shinkawa, Iku Koike, Kazuhiro Kagawa, Hirohide Azuma
  • Publication number: 20150357534
    Abstract: A method of encapsulating PbS quantum dots is provided that includes depositing, using atomic layer deposition (ALD), a first layer of TiO2 on a substrate, depositing, using ALD, a first layer of PbS quantum dots on the first layer of TiO2, and depositing, using ALD, an encapsulating layer of the TiO2 on the first layer of TiO2 and the first layer of PbS quantum dots, where the first layer of PbS quantum dots are encapsulated and separated by the first layer of TiO2 and the encapsulating layer of TiO2.
    Type: Application
    Filed: June 9, 2014
    Publication date: December 10, 2015
    Inventors: Neil Dasgupta, Andrei T. Iancu, Hitoshi Iwadate, Michael C. Langston, Manca Logar, Friedrich B. Prinz, Orlando Trejo, Shicheng Xu
  • Patent number: 9166074
    Abstract: A method of fabricating single-crystalline metal silicide nanowires for anti-reflective electrodes for photovoltaics is provided that includes exposing a surface of a metal foil to oxygen or hydrogen at an elevated temperature, and growing metal silicide nanowires on the metal foil surface by flowing a silane gas mixture over the metal foil surface at the elevated temperature, where spontaneous growth of the metal silicide nanowires occur on the metal foil surface, where the metal silicide nanowires are post treated for use as an electrode in a photovoltaic cell or used directly as the electrode in the photovoltaic cell.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: October 20, 2015
    Assignees: The Board of Trustees of the Leland Stanford Junior University, Honda Motor Co., LTD.
    Inventors: Neil Dasgupta, Hee Joon Jung, Andrei Iancu, Rainer J. Fasching, Friedrich B. Prinz, Hitoshi Iwadate, Shicheng Xu
  • Patent number: 8883266
    Abstract: A method of fabricating quantum confinements is provided. The method includes depositing, using a deposition apparatus, a material layer on a substrate, where the depositing includes irradiating the layer, before a cycle, during a cycle, and/or after a cycle of the deposition to alter nucleation of quantum confinements in the material layer to control a size and/or a shape of the quantum confinements. The quantum confinements can include quantum wells, nanowires, or quantum dots. The irradiation can be in-situ or ex-situ with respect to the deposition apparatus. The irradiation can include irradiation by photons, electrons, or ions. The deposition is can include atomic layer deposition, chemical vapor deposition, MOCVD, molecular beam epitaxy, evaporation, sputtering, or pulsed-laser deposition.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: November 11, 2014
    Assignees: The Board of Trustees of the Leland Stanford Junior University, Honda Patents & Technologies North America, LLC
    Inventors: Timothy P. Holme, Andrei Iancu, Hee Joon Jung, Michael C Langston, Munekazu Motoyama, Friedrich B. Prinz, Takane Usui, Hitoshi Iwadate, Neil Dasgupta, Cheng-Chieh Chao
  • Publication number: 20140093654
    Abstract: A method of fabricating quantum confinements is provided. The method includes depositing, using a deposition apparatus, a material layer on a substrate, where the depositing includes irradiating the layer, before a cycle, during a cycle, and/or after a cycle of the deposition to alter nucleation of quantum confinements in the material layer to control a size and/or a shape of the quantum confinements. The quantum confinements can include quantum wells, nanowires, or quantum dots. The irradiation can be in-situ or ex-situ with respect to the deposition apparatus. The irradiation can include irradiation by photons, electrons, or ions. The deposition is can include atomic layer deposition, chemical vapor deposition, MOCVD, molecular beam epitaxy, evaporation, sputtering, or pulsed-laser deposition.
    Type: Application
    Filed: June 11, 2013
    Publication date: April 3, 2014
    Inventors: Timothy P. Holme, Andrei Iancu, Hee Joon Jung, Michael C. Langston, Munekazu Motoyama, Friedrich B. Prinz, Takane Usui, Hitoshi Iwadate, Neil Dasgupta, Cheng-Chieh Chao
  • Patent number: 8551868
    Abstract: A method of fabricating quantum confinements is provided. The method includes depositing, using a deposition apparatus, a material layer on a substrate, where the depositing includes irradiating the layer, before a cycle, during a cycle, and/or after a cycle of the deposition to alter nucleation of quantum confinements in the material layer to control a size and/or a shape of the quantum confinements. The quantum confinements can include quantum wells, nanowires, or quantum dots. The irradiation can be in-situ or ex-situ with respect to the deposition apparatus. The irradiation can include irradiation by photons, electrons, or ions. The deposition is can include atomic layer deposition, chemical vapor deposition, MOCVD, molecular beam epitaxy, evaporation, sputtering, or pulsed-laser deposition.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: October 8, 2013
    Assignees: The Board of Trustees of the Leland Stanford Junior Universit, Honda Patents & Technologies North America, LLC
    Inventors: Timothy P. Holme, Andrei Iancu, Hee Joon Jung, Michael C Langston, Munekazu Motoyama, Friedrich B. Prinz, Takane Usui, Hitoshi Iwadate, Neil Dasgupta, Cheng-Chieh Chao
  • Patent number: 8298720
    Abstract: A proton conductor is formed of a porous body as a substrate and proton-conducting polymer covalently bonded to inner surfaces of pores of the porous body. The proton-conducting polymer comprises a main chain and a plurality of branched side chains extending radially therefrom. The branched side chains are each bonded to a proton-conducting salt at the end. The proton-conducting polymer has a substantially cylindrical structure in which the salts can be circumscribed by a virtual circle having a center on the cross-sectional center of the main chain such that a radial direction of the virtual circle is perpendicular to a longitudinal direction of the main chain. The salts are located on the peripheral wall of the substantially cylindrical structure. Protons are transferred between the adjacent salts, so that a conduction channel is formed on the peripheral wall of the cylindrical structure.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: October 30, 2012
    Assignee: Honda Motor Co. Ltd.
    Inventors: Tadahiro Shiba, Hitoshi Iwadate
  • Publication number: 20110269298
    Abstract: A method of fabricating quantum confinements is provided. The method includes depositing, using a deposition apparatus, a material layer on a substrate, where the depositing includes irradiating the layer, before a cycle, during a cycle, and/or after a cycle of the deposition to alter nucleation of quantum confinements in the material layer to control a size and/or a shape of the quantum confinements. The quantum confinements can include quantum wells, nanowires, or quantum dots. The irradiation can be in-situ or ex-situ with respect to the deposition apparatus. The irradiation can include irradiation by photons, electrons, or ions. The deposition is can include atomic layer deposition, chemical vapor deposition, MOCVD, molecular beam epitaxy, evaporation, sputtering, or pulsed-laser deposition.
    Type: Application
    Filed: March 24, 2011
    Publication date: November 3, 2011
    Inventors: Timothy P. Holme, Andrei Iancu, Hee Joon Jung, Michael C Langston, Munekazu Motoyama, Friedrich B. Prinz, Takane Usui, Hitoshi Iwadate, Neil Dasgupta, Cheng-Chieh Chao
  • Patent number: 7964673
    Abstract: A proton-conducting polymer comprises a main chain and a plurality of branched side chains extending radially therefrom. The branched side chains are each bonded to a proton-conducting salt at the end. In the proton-conducting polymer, the salts can be circumscribed by a virtual circle having a center on the cross-sectional center of the main chain such that a radial direction of the virtual circle is perpendicular to a longitudinal direction of the main chain. Thus, the proton-conducting polymer has a substantially cylindrical structure, and the salts are located on the peripheral wall of the substantially cylindrical structure. Protons are transferred between the adjacent salts, so that a conduction channel is formed on the peripheral wall of the cylindrical structure.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: June 21, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tadahiro Shiba, Hitoshi Iwadate
  • Publication number: 20080233453
    Abstract: A proton conductor is formed of a porous body as a substrate and proton-conducting polymer covalently bonded to inner surfaces of pores of the porous body. The proton-conducting polymer comprises a main chain and a plurality of branched side chains extending radially therefrom. The branched side chains are each bonded to a proton-conducting salt at the end. The proton-conducting polymer has a substantially cylindrical structure in which the salts can be circumscribed by a virtual circle having a center on the cross-sectional center of the main chain such that a radial direction of the virtual circle is perpendicular to a longitudinal direction of the main chain. The salts are located on the peripheral wall of the substantially cylindrical structure. Protons are transferred between the adjacent salts, so that a conduction channel is formed on the peripheral wall of the cylindrical structure.
    Type: Application
    Filed: March 21, 2008
    Publication date: September 25, 2008
    Applicant: Honda Motor Co., Ltd.
    Inventors: Tadahiro SHIBA, Hitoshi IWADATE
  • Publication number: 20080200629
    Abstract: A proton-conducting polymer comprises a main chain and a plurality of branched side chains extending radially therefrom. The branched side chains are each bonded to a proton-conducting salt at the end. In the proton-conducting polymer, the salts can be circumscribed by a virtual circle having a center on the cross-sectional center of the main chain such that a radial direction of the virtual circle is perpendicular to a longitudinal direction of the main chain. Thus, the proton-conducting polymer has a substantially cylindrical structure, and the salts are located on the peripheral wall of the substantially cylindrical structure. Protons are transferred between the adjacent salts, so that a conduction channel is formed on the peripheral wall of the cylindrical structure.
    Type: Application
    Filed: January 22, 2008
    Publication date: August 21, 2008
    Applicant: Honda Motor Co., Ltd.
    Inventors: Tadahiro Shiba, Hitoshi Iwadate
  • Patent number: 7388050
    Abstract: A hyperbranch polymer is bonded to a pore surface existing on a SiO2 glass porous body, such that the hyperbranch polymer is bonded to the pore surface only at the base end moiety. The hyperbranch polymer has a first generation branched moiety branched from the base end moiety, a second generation branched moiety further branched from the first generation branched moiety, and a third generation branched moiety further branched from the second generation branched moiety. A functional group, such as sulfonic acid group, from which a proton is capable of being dissociated, is bonded by substitution to the terminal end of the third generation branched moiety.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: June 17, 2008
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hitoshi Iwadate, Yuji Isogai
  • Patent number: 7226683
    Abstract: An alcohol solution of a metal alkoxide is mixed with a H3PO4 mixture solution of water and alcohol to hydrolyze the metal alkoxide and effect crosslinking with H3PO4. Accordingly, a solid is produced composed of a composite oxide glass (proton conductor) containing constituent elements of P and a metal element originating from the metal alkoxide and having hydroxyl groups at terminals. The metal alkoxide is selected so that the metal alkoxide contains constituent elements of metal elements each of which is designated by a chemical shift within ?25 ppm. The chemical shift is a difference between a value at which a peak of orthophosphoric acid appears when a silicon oxide-phosphate glass, which is a composite oxide of phosphorus oxide and silicon oxide, is analyzed by P31—MASNMR and a value at which a maximum peak appears when the composite oxide glass is analyzed by P31—MASNMR.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: June 5, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yuji Isogai, Hitoshi Iwadate
  • Publication number: 20050143530
    Abstract: A hyperbranch polymer is bonded to a pore surface existing on a SiO2 glass porous body, such that the hyperbranch polymer is bonded to the pore surface only at the base end moiety. The hyperbranch polymer has a first generation branched moiety branched from the base end moiety, a second generation branched moiety further branched from the first generation branched moiety, and a third generation branched moiety further branched from the second generation branched moiety. A functional group, such as sulfonic acid group, from which a proton is capable of being dissociated, is bonded by substitution to the terminal end of the third generation branched moiety.
    Type: Application
    Filed: December 23, 2004
    Publication date: June 30, 2005
    Applicant: Honda Motor Co., Ltd.
    Inventors: Hitoshi Iwadate, Yuji Isogai
  • Publication number: 20040140433
    Abstract: An alcohol solution of a metal alkoxide is mixed with a H3PO4 mixture solution of water and alcohol to hydrolyze the metal alkoxide and effect crosslinking with H3PO4. Accordingly, a solid is produced composed of a composite oxide glass (proton conductor) containing constituent elements of P and a metal element originating from the metal alkoxide and having hydroxyl groups at terminals. The metal alkoxide is selected so that the metal alkoxide contains constituent elements of metal elements each of which is designated by a chemical shift within −25 ppm. The chemical shift is a difference between a value at which a peak of orthophosphoric acid appears when a silicon oxide-phosphate glass, which is a composite oxide of phosphorus oxide and silicon oxide, is analyzed by P31—MASNMR and a value at which a maximum peak appears when the composite oxide glass is analyzed by P31—MASNMR.
    Type: Application
    Filed: December 23, 2003
    Publication date: July 22, 2004
    Applicant: Honda Motor Co., Ltd.
    Inventors: Yuji Isogai, Hitoshi Iwadate
  • Patent number: 6726365
    Abstract: The disclosed invention relates to a foil type fluid bearing including a foil assembly. The foil assembly supports a journal within a stationary retaining member and includes a top foil that is disposed on the inside in the radial direction, three mid foil layers that are disposed outside the top foil, and corrugated bump foils disposed outside the mid foil layers. When the journal is radially displaced, a large frictional damping force is generated between the three mid foil layers, thereby enhancing the function of supporting the journal. Moreover, layering the three mid foil layers can increase the rigidity against a load in the radial direction, thus preventing the top foil from deforming in a wavelike manner and thereby allowing the function of the foil type fluid bearing to be reliably exhibited.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: April 27, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Norio Shimizu, Hitoshi Iwadate
  • Publication number: 20030012466
    Abstract: The disclosed invention relates to a foil type fluid bearing including a foil assembly. The foil assembly supports a journal within a stationary retaining member and includes a top foil that is disposed on the inside in the radial direction, three mid foil layers that are disposed outside the top foil, and corrugated bump foils disposed outside the mid foil layers. When the journal is radially displaced, a large frictional damping force is generated between the three mid foil layers, thereby enhancing the function of supporting the journal. Moreover, layering the three mid foil layers can increase the rigidity against a load in the radial direction, thus preventing the top foil from deforming in a wavelike manner and thereby allowing the function of the foil type fluid bearing to be reliably exhibited.
    Type: Application
    Filed: June 12, 2002
    Publication date: January 16, 2003
    Inventors: Noria Shimizu, Hitoshi Iwadate