Patents by Inventor Hiroshi Kanemoto
Hiroshi Kanemoto 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: 20230313403Abstract: Provided is a shock absorber in which trivalent chromium is used to achieve both high hardness and low frictional force at a high level without using hexavalent chromium which is suspected of causing damage to the human body and the environment, and a method for manufacturing the shock absorber. A shock absorber (100) of the present invention includes: a cylinder (1) which is filled with hydraulic oil (3); a piston rod (2) which is movable in the cylinder (1); and an oil seal (8) which is fixed to the cylinder (1) and slides on the piston rod (2), in which a hard layer mainly containing chromium obtained from a trivalent chromium plating bath is provided on a surface of the piston rod (2), and the hard layer contains both a crystalline material and an amorphous material, and also contains an additive other than chromium.Type: ApplicationFiled: May 20, 2021Publication date: October 5, 2023Applicant: Hitachi Astemo, Ltd.Inventors: Toshinori KAWAMURA, Hiroshi KANEMOTO, Hiroshi NAKANO, Akihito HOSHINO
-
Publication number: 20230143193Abstract: The preset invention has as its object the provision of a laminate free of hexavalent chromium and excellent in corrosion resistance and wear resistance, and a manufacturing process of the laminate. To solve the above-described problems, a laminate according to the present invention includes a substrate, and a laminated film portion with metal films laminated in two or more layers. The laminate has an interface layer between each two adjacent ones of the metal films. The laminated film portion contains a first metal element as a principal component, the first metal element being at least one element of Ni, Cr, Co, and W, and a second metal element that is a metal element of smaller cohesive energy than that of the first metal element. The second metal element contained in the interface layer is at a content ratio higher than that of the second metal element contained in each of the adjacent metal films.Type: ApplicationFiled: October 7, 2020Publication date: May 11, 2023Applicant: HITACHI, LTD.Inventors: Takuya AOYAGI, Hiroshi KANEMOTO, Tomio IWASAKI, Toshinori KAWAMURA, Hitoshi SUZUKI
-
Publication number: 20220380881Abstract: The present invention provides a nitriding treatment method for forming a compound layer of ? phase (Fe2-3N) and ?? phase (Fe4N) iron nitride excellent in wear durability in a steel material, from which a sliding member is formed, by short treatment, with a high thermal efficiency, with a reduced amount of used nitriding gas, and with a low environmental load. The nitriding treatment method of the present invention includes heating a sliding member made of a steel material at a temperature of 600° C. to 700° C. for a time of 1 to 25 minutes under an atmosphere of nitriding gas through high frequency induction heating or resistive heating, to form a compound layer of ? phase (Fe2-3N) and ?? phase (Fe4N) iron nitride, the compound layer having a nitrogen content of higher than 4.5%, in a surface layer portion of the sliding member.Type: ApplicationFiled: September 4, 2020Publication date: December 1, 2022Inventors: Hisamitsu HATOU, Kazuya SHINAGAWA, Keigo NAKAMURA, Hiroshi KANEMOTO
-
Patent number: 11279112Abstract: An object of the invention is to provide a coating laminated body in which coatings not containing hexavalent chromium which is an environmental concern material, and excellent in corrosion resistance and wear resistance are laminated on a base material, and to provide a method for producing the same. The coating laminated body according to the invention is a laminated body in which a multiple-layer coating is laminated on a base material. The multiple-layer coating includes: a plurality of layers of S-containing Ni alloy coatings; and a sulfur concentrated layer that is formed between the plurality of layers of S-containing Ni alloy coatings and has an S concentration higher than an S concentration of the S-containing Ni alloy coatings. Each of the plurality of layers of S-containing Ni alloy coatings has a Ni concentration of 90% or more by mass, and a difference in Ni concentration between the coatings is within 1% by mass.Type: GrantFiled: May 8, 2018Date of Patent: March 22, 2022Assignee: Hitachi, Ltd.Inventors: Toshinori Kawamura, Hiroshi Kanemoto
-
Patent number: 10836138Abstract: An object of the present invention is to provide a product excellent in corrosion resistance and abrasion resistance. In order to achieve the above object, a laminated body according to the invention includes a substrate and a coating formed on the surface of the substrate, in which the coating includes repeated unit structures each composed of a first layer whose main component is Ni and a second layer whose main component is a metal whose electrode potential is baser than that of Ni.Type: GrantFiled: April 22, 2016Date of Patent: November 17, 2020Assignee: HITACHI, LTD.Inventors: Hiroshi Kanemoto, Katsumi Mabuchi, Hiroshi Nakano
-
Publication number: 20200255965Abstract: An object of the invention is to provide a coating laminated body in which coatings not containing hexavalent chromium which is an environmental concern material, and excellent in corrosion resistance and wear resistance are laminated on a base material, and to provide a method for producing the same. The coating laminated body according to the invention is a laminated body in which a multiple-layer coating is laminated on a base material. The multiple-layer coating includes: a plurality of layers of S-containing Ni alloy coatings; and a sulfur concentrated layer that is formed between the plurality of layers of S-containing Ni alloy coatings and has an S concentration higher than an S concentration of the S-containing Ni alloy coatings. Each of the plurality of layers of S-containing Ni alloy coatings has a Ni concentration of 90% or more by mass, and a difference in Ni concentration between the coatings is within 1% by mass.Type: ApplicationFiled: May 8, 2018Publication date: August 13, 2020Inventors: Toshinori KAWAMURA, Hiroshi KANEMOTO
-
Publication number: 20180264782Abstract: An object of the present invention is to provide a product excellent in corrosion resistance and abrasion resistance. In order to achieve the above object, a laminated body according to the invention includes a substrate and a coating formed on the surface of the substrate, in which the coating includes repeated unit structures each composed of a first layer whose main component is Ni and a second layer whose main component is a metal whose electrode potential is baser than that of Ni.Type: ApplicationFiled: April 22, 2016Publication date: September 20, 2018Applicant: HITACHI, LTD.Inventors: Hiroshi KANEMOTO, Katsumi MABUCHI, Hiroshi NAKANO
-
Patent number: 9829458Abstract: Provided are an electrode, an electrolysis cell, and an electrochemical analyzer that improve the long-term stability of analysis data. A working electrode, a counter electrode, and reference electrode are disposed in an electrolysis cell. The working electrode is obtained by forming a lead wire in a composite material having platinum or a platinum alloy as a base material, in which a metal oxide is dispersed, or in a laminated material obtained by laminating a valve metal and platinum such that the cross sectional crystal texture in the thickness direction of the platinum is formed in layers and the thickness of each layer of the platinum is 5 micrometers or less. The metal oxide is selected from among zirconium oxide, tantalum oxide, and niobium oxide, and the metal oxide content of the platinum or the platinum alloy is 0.005 to 1 wt % in terms of the zirconium, tantalum, or niobium metal.Type: GrantFiled: December 1, 2015Date of Patent: November 28, 2017Assignee: Hitachi High-Technologies CorporationInventors: Hiroshi Kanemoto, Hauro Akahoshi, So Oguchi, Kenta Imai, Taku Sakazume, Hiroshi Yoshida
-
Publication number: 20160077035Abstract: Provided are an electrode, an electrolysis cell, and an electrochemical analyzer that improve the long-term stability of analysis data. A working electrode, a counter electrode, and reference electrode are disposed in an electrolysis cell. The working electrode is obtained by forming a lead wire in a composite material having platinum or a platinum alloy as a base material, in which a metal oxide is dispersed, or in a laminated material obtained by laminating a valve metal and platinum such that the cross sectional crystal texture in the thickness direction of the platinum is formed in layers and the thickness of each layer of the platinum is 5 micrometers or less. The metal oxide is selected from among zirconium oxide, tantalum oxide, and niobium oxide, and the metal oxide content of the platinum or the platinum alloy is 0.005 to 1 wt % in terms of the zirconium, tantalum, or niobium metal.Type: ApplicationFiled: December 1, 2015Publication date: March 17, 2016Applicant: Hitachi High-Technologies CorporationInventors: Hiroshi KANEMOTO, Hauro AKAHOSHI, So OGUCHI, Kenta IMAI, Taku SAKAZUME, Hiroshi YOSHIDA
-
Patent number: 9234861Abstract: Provided are an electrode, an electrolysis cell, and an electrochemical analyzer that improve the long-term stability of analysis data. A working electrode, a counter electrode, and reference electrode are disposed in an electrolysis cell. The working electrode is obtained by forming a lead wire in a composite material having platinum or a platinum alloy as a base material, in which a metal oxide is dispersed, or in a laminated material obtained by laminating a valve metal and platinum such that the cross sectional crystal texture in the thickness direction of the platinum is formed in layers and the thickness of each layer of the platinum is 5 micrometers or less. The metal oxide is selected from among zirconium oxide, tantalum oxide, and niobium oxide, and the metal oxide content of the platinum or the platinum alloy is 0.005 to 1 wt % in terms of the zirconium, tantalum, or niobium metal.Type: GrantFiled: December 6, 2011Date of Patent: January 12, 2016Assignee: Hitachi High-Technologies CorporationInventors: Hiroshi Kanemoto, Haruo Akahoshi, So Oguchi, Kenta Imai, Taku Sakazume, Hiroshi Yoshida
-
Publication number: 20130248378Abstract: Provided are an electrode, an electrolysis cell, and an electrochemical analyzer that improve the long-term stability of analysis data. A working electrode, a counter electrode, and reference electrode are disposed in an electrolysis cell. The working electrode is obtained by forming a lead wire in a composite material having platinum or a platinum alloy as a base material, in which a metal oxide is dispersed, or in a laminated material obtained by laminating a valve metal and platinum such that the cross sectional crystal texture in the thickness direction of the platinum is formed in layers and the thickness of each layer of the platinum is 5 micrometers or less. The metal oxide is selected from among zirconium oxide, tantalum oxide, and niobium oxide, and the metal oxide content of the platinum or the platinum alloy is 0.005 to 1 wt % in terms of the zirconium, tantalum, or niobium metal.Type: ApplicationFiled: December 6, 2011Publication date: September 26, 2013Inventors: Hiroshi Kanemoto, Haruo Akahoshi, So Oguchi, Kenta Imai, Taku Sakazume, Hiroshi Yoshida
-
Patent number: 8307863Abstract: Recovery of dehydrogenation product must be done separately from supply of hydrogen fuel. However, there is a problem that it takes much time when dehydrogenation product recovery and fuel filling are done separately. A fuel filling/waste solution recovery apparatus includes measuring means to measure a volume of supplied fuel and a volume of recovered waste solution by measuring flow rates of solutions passing through a fuel filling nozzle and a recovery nozzle or piping, and a display which shows the volume of supplied fuel and the volume of recovered waste solution which are measured by the measuring means.Type: GrantFiled: August 20, 2008Date of Patent: November 13, 2012Assignee: Hitachi, Ltd.Inventors: Masafumi Noujima, Takeyuki Itabashi, Takao Ishikawa, Hiroshi Kanemoto, Shinji Yamada
-
Patent number: 8197752Abstract: Managing system for emissions environmental pollutants comprising: a measuring device for measuring a flow rate of a fuel supplied to a customer; an unit emission quantity storage device of environmentally influential substance for storing a unit emission quantity of an environmentally influential substance emitted when an unit flow rate of fuel is manufactured or processed; and an emission quantity computing device of environmentally influential substance for calculating, based on the fuel flow rate measured by the measuring device, and the unit emission quantity of the environmentally influential substance stored by the unit emission quantity storage device, an environmental emission quantity of the environmentally influential substance emitted when the fuel supplied to the customer is manufactured or processed.Type: GrantFiled: July 27, 2006Date of Patent: June 12, 2012Assignee: Hitachi, Ltd.Inventors: Masafumi Nojima, Takeyuki Itabashi, Takao Ishikawa, Hiroshi Kanemoto
-
Patent number: 8109286Abstract: In a fuel tank for containing a hydrogen storing material and a product generated by dehydrogenation reaction of the hydrogen storing material, comprising, a fuel chamber for containing the hydrogen storing material, a waste chamber for containing the product, and a tank envelope for containing the fuel chamber and the waste chamber, the fuel tank further comprises a partition wall fluidly separating the fuel chamber and the waste chamber from each other and being movable to change a ratio in volume between the fuel chamber and the waste chamber, and each of the fuel chamber and the waste chamber has a valve to be hermetically closed.Type: GrantFiled: August 10, 2007Date of Patent: February 7, 2012Assignee: Hitachi, Ltd.Inventors: Masafumi Nojima, Takao Ishikawa, Hiroshi Kanemoto, Takeyuki Itabashi
-
Publication number: 20110005473Abstract: A hydrogen supply device which generates hydrogen from hydrogen storing material which chemically stores hydrogen by a catalyst, wherein said device comprises valves on the fuel supply port and the exhaust port, and a valve controller which controls timing to opening and close the valves. Fuel supply pressure is 2 to 20 atm. Hydrogen generation pressure is 5 to 300 atm. Exhaust pressure is atmospheric pressure to 0.01 atm.Type: ApplicationFiled: September 10, 2010Publication date: January 13, 2011Inventors: Takao Ishikawa, Hiroshi Kanemoto, Masafumi Noujima, Takeyuki Itabashi
-
Publication number: 20100266929Abstract: An object of the invention is to provide a catalyst of high activity having a dehydrogenation function or hydrogenation function, to provide a fuel cell with a high output density, and further to provide a hydrogen storage/supply device, with which hydrogen is stored or supplied in a high efficient manner. In order to achieve the above object, a porous oxide film of a metal oxide is formed on a hydrogen separation membrane surface of a catalyst having a dehydrogenation function or hydrogenation function and the hydrogen separation membrane is arranged so as to be partially exposed to at the interface with the porous oxide film. In doing so, hydrogen generated on the catalyst can quickly diffuse into the hydrogen separation membrane thereby efficiently releasing the hydrogen to outside of the reaction system. Eventually, the reaction efficiency can be improved.Type: ApplicationFiled: December 20, 2006Publication date: October 21, 2010Inventors: Hiroshi Kanemoto, Takao Ishikawa, Masafumi Noujima, Takeyuki Itabashi
-
Patent number: 7568452Abstract: An object of the invention is to provide an engine system driving an engine by using a hydrogen rich gas generated from a medium chemically repeating a hydrogen absorption and a hydrogen desorption as one of fuels, in which the engine system can efficiently generate a hydrogen rich gas from the medium. In an engine system which mounts a medium chemically repeating a hydrogen absorption and a hydrogen desorption thereon, is provided with a hydrogen supplying apparatus generating or storing a hydrogen rich gas from the medium, and drives an engine by using the hydrogen rich gas as one of fuels, the engine system has a detecting portion detecting an operating state of the engine, and a medium supplying amount control means controlling a supplying amount of the medium supplied to the hydrogen supplying apparatus in correspondence to a result of detection of the detecting portion.Type: GrantFiled: January 25, 2007Date of Patent: August 4, 2009Assignee: Hitachi, Ltd.Inventors: Atsushi Shimada, Takao Ishikawa, Takeyuki Itabashi, Hiroshi Kanemoto
-
Patent number: 7527660Abstract: A hydrogen fuel manufacturing system capable of efficiently producing each hydrogen fuel in accordance with a demanded quantity is disclosed. The system includes a hydrogen manufacturing apparatus for manufacturing hydrogen, more than two hydrogen fuel manufacturing apparatuses for manufacturing hydrogen fuels by letting the hydrogen produced by the hydrogen manufacturing apparatus change into a fuel-use form, wherein the fuel form to be manufactured by the hydrogen fuel manufacturing apparatuses is set to have more than two kinds. Additionally the system has a hydrogen fuel production volume receiver device for receipt of the information as to a hydrogen fuel production volume, thereby controlling the production volume of the hydrogen fuel being manufactured by the hydrogen fuel manufacturing apparatus, based on the hydrogen fuel production volume information as received by the hydrogen fuel production volume receiver device.Type: GrantFiled: February 15, 2005Date of Patent: May 5, 2009Assignee: Hitachi, Ltd.Inventors: Masafumi Noujima, Takeyuki Itabashi, Takao Ishikawa, Hiroshi Kanemoto
-
Publication number: 20090025824Abstract: Recovery of dehydrogenation product must be done separately from supply of hydrogen fuel. However, there is a problem that it takes much time when dehydrogenation product recovery and fuel filling are done separately. A fuel filling/waste solution recovery apparatus includes measuring means to measure a volume of supplied fuel and a volume of recovered waste solution by measuring flow rates of solutions passing through a fuel filling nozzle and a recovery nozzle or piping, and a display which shows the volume of supplied fuel and the volume of recovered waste solution which are measured by the measuring means.Type: ApplicationFiled: August 20, 2008Publication date: January 29, 2009Inventors: Masafumi Noujima, Takeyuki Itabashi, Takao Ishikawa, Hiroshi Kanemoto, Shinji Yamada
-
Publication number: 20080052994Abstract: In a fuel tank for containing a hydrogen storing material and a product generated by dehydrogenation reaction of the hydrogen storing material, comprising, a fuel chamber for containing the hydrogen storing material, a waste chamber for containing the product, and a tank envelope for containing the fuel chamber and the waste chamber, the fuel tank further comprises a partition wall fluidly separating the fuel chamber and the waste chamber from each other and being movable to change a ratio in volume between the fuel chamber and the waste chamber, and each of the fuel chamber and the waste chamber has a valve to be hermetically closed.Type: ApplicationFiled: August 10, 2007Publication date: March 6, 2008Inventors: Masafumi Nojima, Takao Ishikawa, Hiroshi Kanemoto, Takeyuki Itabashi