Patents by Inventor Shunsuke Itami
Shunsuke Itami 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: 20240140804Abstract: A graphene nanoribbon represented by formula (1): wherein R1 represents a linear alkyl group having 1 to 12 carbon atoms, R3 and R4 are both hydrogen atoms, or R3 and R4 taken together form a group represented by —SiR2aR2b—, wherein R2a and R2b are the same or different, and each represents a hydrogen atom, an optionally branched alkyl group having 1 to 4 carbon atoms, or a phenyl group, and n represents an integer of 1 or more, is a novel GNR obtained by a simpler and industrially advantageous method for GNRs.Type: ApplicationFiled: January 31, 2022Publication date: May 2, 2024Applicants: National University Corporation Tokai National Higher Education and Research System, TAOKA CHEMICAL CO., LTD.Inventors: Kenichiro ITAMI, Hideto ITO, Kaho MATSUSHIMA, Hidefumi NAKATSUJI, Ryoma UENO, Shunsuke ISHIDA, Sachie OKUDA
-
Patent number: 9793568Abstract: A fuel cell is formed by sandwiching a membrane electrode assembly between a first separator and a second separator. The membrane electrode assembly includes a cathode, an anode, and a solid polymer electrolyte membrane interposed between the cathode and the anode. In the membrane electrode assembly, a catalyst area of an electrode catalyst layer of the cathode and an electrode catalyst layer of the anode terminates at a position spaced upwardly from lower ends of an oxygen-containing gas flow field and a fuel gas flow field.Type: GrantFiled: September 24, 2010Date of Patent: October 17, 2017Assignee: Honda Motor Co., Ltd.Inventors: Masaru Oda, Nagayuki Kanaoka, Shunsuke Itami, Ryohei Ishimaru, Masaaki Sakano
-
Publication number: 20110070516Abstract: A fuel cell is formed by sandwiching a membrane electrode assembly between a first separator and a second separator. The membrane electrode assembly includes a cathode, an anode, and a solid polymer electrolyte membrane interposed between the cathode and the anode. In the membrane electrode assembly, a catalyst area of an electrode catalyst layer of the cathode and an electrode catalyst layer of the anode terminates at a position spaced upwardly from lower ends of an oxygen-containing gas flow field and a fuel gas flow field.Type: ApplicationFiled: September 24, 2010Publication date: March 24, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Masaru ODA, Nagayuki KANAOKA, Shunsuke ITAMI, Ryohei ISHIMARU, Masaaki SAKANO
-
Patent number: 7846602Abstract: A thermoelectric conversion apparatus has an evaporator for heating a working medium in liquid-phase to evaporate the working medium, an electric generator for forming a concentration cell for electric power generation when it is supplied with a reactive gas and the working medium evaporated by the evaporator, and a gas-liquid separator for being supplied with a mixed gas of the working medium and a cathode off-gas discharged from the electric generator and separating the mixed gas into the working medium and the reactive gas. The thermoelectric conversion apparatus also has an anode supply passage for supplying the reactive gas separated by the gas-liquid separator to the electric generator, and a cathode supply passage for supplying the working medium separated by the gas-liquid separator through the evaporator to the electric generator.Type: GrantFiled: April 11, 2007Date of Patent: December 7, 2010Assignee: Honda Motor Co., Ltd.Inventors: Atsushi Kamachi, Shunsuke Itami
-
Patent number: 7455922Abstract: An energy utilization apparatus includes: an endothermic reaction device for performing dehydrogenation endothermic reaction of an organic compound; a compression device for pressurizing a first gas containing hydrogen and a dehydrogenated organic compound, and a non-reacted organic compound which are produced in the endothermic reaction device; a distillation device for distilling under pressure the first gas which is pressurized by the compression device, so as to separate the hydrogen and the dehydrogenated organic compound from the liquefied non-reacted organic compound; a vaporization device for vaporizing the liquefied non-reacted organic compound by pressure-relieving; and an expansion energy recovery device for obtaining power of the compression device by using expansion force generated by the vaporization.Type: GrantFiled: May 6, 2005Date of Patent: November 25, 2008Assignee: Honda Motor Co., Ltd.Inventors: Atsushi Kamachi, Shunsuke Itami, Hitoshi Okanobori
-
Patent number: 7297433Abstract: A fuel cell includes a laminated, plate-shaped membrane electrode assembly and first and second separator plates sandwiching the membrane electrode assembly. The membrane electrode assembly includes a polymer electrolyte membrane; first and second electrode layers sandwiching the polymer electrolyte membrane; and first and second gas-diffusion layers disposed on an outer side of the electrode layers, respectively. The first and second gas-diffusion layers are made of an air-permeable metallic material. An arithmetic average roughness Ra of a surface of the air-permeable metallic material on the side contacting one of the electrode layers is in a range of 0.1 ?m?Ra?1.0 ?m.Type: GrantFiled: November 18, 2004Date of Patent: November 20, 2007Assignee: Honda Motor Co., Ltd.Inventors: Atsushi Kamachi, Shunsuke Itami, Hitoshi Okanobori
-
Publication number: 20070235325Abstract: A thermoelectric conversion apparatus has an evaporator for heating a working medium in liquid-phase to evaporate the working medium, an electric generator for forming a concentration cell for electric power generation when it is supplied with a reactive gas and the working medium evaporated by the evaporator, and a gas-liquid separator for being supplied with a mixed gas of the working medium and a cathode off-gas discharged from the electric generator and separating the mixed gas into the working medium and the reactive gas. The thermoelectric conversion apparatus also has an anode supply passage for supplying the reactive gas separated by the gas-liquid separator to the electric generator, and a cathode supply passage for supplying the working medium separated by the gas-liquid separator through the evaporator to the electric generator.Type: ApplicationFiled: April 11, 2007Publication date: October 11, 2007Applicant: Honda Motor Co., Ltd.Inventors: Atsushi Kamachi, Shunsuke Itami
-
Patent number: 7261961Abstract: A thermoelectric conversion apparatus having a high thermoelectric conversion efficiency comprises: a dehydrogenation reactor for generating hydrogen and acetone by an endothermic dehydrogenation reaction of isopropyl alcohol in the presence of a dehydrogenation catalyst and heat from a heat source, and a fuel cell which generates electricity by an electrochemical reaction of the hydrogen and the acetone produced by the dehydrogenation reactor. A module is constructed by integrating the dehydrogenation reactor and an electricity generating layer constituting the fuel cell into a stack.Type: GrantFiled: March 23, 2004Date of Patent: August 28, 2007Assignee: Honda Motor Co., Ltd.Inventors: Atsushi Kamachi, Hitoshi Okanobori, Shunsuke Itami
-
Publication number: 20050255350Abstract: An energy utilization apparatus includes: an endothermic reaction device for performing dehydrogenation endothermic reaction of an organic compound; a compression device for pressurizing a first gas containing hydrogen and a dehydrogenated organic compound, and a non-reacted organic compound which are produced in the endothermic reaction device; a distillation device for distilling under pressure the first gas which is pressurized by the compression device, so as to separate the hydrogen and the dehydrogenated organic compound from the liquefied non-reacted organic compound; a vaporization device for vaporizing the liquefied non-reacted organic compound by pressure-relieving; and an expansion energy recovery device for obtaining power of the compression device by using expansion force generated by the vaporization.Type: ApplicationFiled: May 6, 2005Publication date: November 17, 2005Inventors: Atsushi Kamachi, Shunsuke Itami, Hitoshi Okanobori
-
Publication number: 20050130028Abstract: A fuel cell includes a laminated, plate-shaped membrane electrode assembly and first and second separator plates sandwiching the membrane electrode assembly. The membrane electrode assembly includes a polymer electrolyte membrane; first and second electrode layers sandwiching the polymer electrolyte membrane; and first and second gas-diffusion layers disposed on an outer side of the electrode layers, respectively. The first and second gas-diffusion layers are made of an air-permeable metallic material. An arithmetic average roughness Ra of a surface of the air-permeable metallic material on the side contacting one of the electrode layers is in a range of 0.1 ?m?Ra?1.0 ?m.Type: ApplicationFiled: November 18, 2004Publication date: June 16, 2005Inventors: Atsushi Kamachi, Shunsuke Itami, Hitoshi Okanobori
-
Publication number: 20040191592Abstract: A thermoelectric conversion apparatus having a high thermoelectric conversion efficiency comprises: a dehydrogenation reactor for generating hydrogen and acetone by an endothermic dehydrogenation reaction of isopropyl alcohol in the presence of a dehydrogenation catalyst and heat from a heat source, and a fuel cell which generates electricity by an electrochemical reaction of the hydrogen and the acetone produced by the dehydrogenation reactor. A module is constructed by integrating the dehydrogenation reactor and an electricity generating layer constituting the fuel cell into a stack.Type: ApplicationFiled: March 23, 2004Publication date: September 30, 2004Applicant: Honda Motor Co., Ltd.Inventors: Atsushi Kamachi, Hitoshi Okanobori, Shunsuke Itami