Patents by Inventor Shigemitsu Nomoto
Shigemitsu Nomoto 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).
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Patent number: 10897053Abstract: Provided is an aging device for a fuel cell stack, capable of reliably detecting the generation of a negative voltage during aging while also achieving a cost reduction with reduced cell monitors. The voltage of an end cell on the reactant gas inlet side, in which the voltage is likely to become the highest, is monitored alone, so that the generation of a negative voltage in each of a plurality of individual central cells other than the end cell is estimated.Type: GrantFiled: January 2, 2019Date of Patent: January 19, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Shigemitsu Nomoto
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Patent number: 10581084Abstract: A method of activating a catalyst for a fuel cell in order to perform catalyst activation in a cathode electrode of the fuel cell includes a first process in which hydrogen is supplied into an anode electrode, the side of an air supply line of the cathode electrode is sealed, and the side of an air exhaust line of the cathode electrode is opened to an atmosphere, a second process in which the side of the air exhaust line of the cathode electrode is sealed after the first process, and a third process in which catalyst activation is performed in the cathode electrode after the second process.Type: GrantFiled: December 8, 2017Date of Patent: March 3, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazumi Sugita, Kosuke Katsuta, Naotoshi Miyamoto, Shigemitsu Nomoto
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Publication number: 20190252702Abstract: Provided is an aging device for a fuel cell stack, capable of reliably detecting the generation of a negative voltage during aging while also achieving a cost reduction with reduced cell monitors. The voltage of an end cell on the reactant gas inlet side, in which the voltage is likely to become the highest, is monitored alone, so that the generation of a negative voltage in each of a plurality of individual central cells other than the end cell is estimated.Type: ApplicationFiled: January 2, 2019Publication date: August 15, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Shigemitsu NOMOTO
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Publication number: 20180166691Abstract: A method of activating a catalyst for a fuel cell in order to perform catalyst activation in a cathode electrode of the fuel cell includes a first process in which hydrogen is supplied into an anode electrode, the side of an air supply line of the cathode electrode is sealed, and the side of an air exhaust line of the cathode electrode is opened to an atmosphere, a second process in which the side of the air exhaust line of the cathode electrode is sealed after the first process, and a third process in which catalyst activation is performed in the cathode electrode after the second process.Type: ApplicationFiled: December 8, 2017Publication date: June 14, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumi SUGITA, Kosuke KATSUTA, Naotoshi MIYAMOTO, Shigemitsu NOMOTO
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Method for taking out a sealing plate of a fuel cell and a sealing plate directly used in the method
Patent number: 8652664Abstract: A fuel cell sealing plate taking-out method that may include taking out a sealing plate from a stack of sealing plates one by one while an air layer exists between adjacent sealing plates of the stack of fuel cells. A protrusion may be formed beforehand at one or more surfaces of each sealing plate. Due to the air layer existing between adjacent sealing plates, it may be possible to take out the sealing plate one by one from the stack of sealing plates.Type: GrantFiled: April 27, 2012Date of Patent: February 18, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shiro Akiyama, Shigemitsu Nomoto -
Patent number: 8627781Abstract: Disclosed is a coating die which can recover a coating solution to be wasted in a good manner, while suppressing adhesion of foreign matter onto an object to be coated. A coating apparatus comprising the coating die is also disclosed. Specifically disclosed is a coating die (30) for coating a web (2) with a paste (3), which comprises a main body (31) having a discharge opening (31e) for discharging the paste (3) upwardly, a recovery pan (32c) for recovering the paste (3) flowing out from the discharge opening (31e), and flow passage (grooves (32a, 32a) and shoots (32b, 32b)) which are integrally formed with the main body (31) for the purpose of guiding the paste (3) from the discharge opening (31e) to the recovery pan (32c).Type: GrantFiled: March 30, 2009Date of Patent: January 14, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Seiji Ishizu, Shigemitsu Nomoto
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Patent number: 8394554Abstract: A separator suction device for a fuel cell, having a suction plate and a suction pump. A fuel cell separator is placed on the suction plate. The fuel cell separator has flow paths formed as grooves and ridges on one side of thereof and also has a gasket that is a seal member placed around the flow paths. The suction plate attracts the fuel cell separator by suction. The suction pump sucks the fuel cell separator through suction openings formed in the suction plate. The suction plate has a suction groove which receives the gasket and which has a suction opening formed in it. Further, the suction plate preferably has the suction openings at positions where the ridges of the fuel cell separator are to be placed and is made of an elastic material.Type: GrantFiled: October 18, 2007Date of Patent: March 12, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Shigemitsu Nomoto
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METHOD FOR TAKING OUT A SEALING PLATE OF A FUEL CELL AND A SEALING PLATE DIRECTLY USED IN THE METHOD
Publication number: 20120214087Abstract: A fuel cell sealing plate taking-out method that may include taking out a sealing plate from a stack of sealing plates one by one while an air layer exists between adjacent sealing plates of the stack of fuel cells. A protrusion may be formed beforehand at one or more surfaces of each sealing plate. Due to the air layer existing between adjacent sealing plates, it may be possible to take out the sealing plate one by one from the stack of sealing plates.Type: ApplicationFiled: April 27, 2012Publication date: August 23, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro AKIYAMA, Shigemitsu NOMOTO -
Patent number: 8202637Abstract: A fuel cell sealing plate taking-out method that may include forming an air layer between adjacent sealing plates and taking out a sealing plate from a stack of sealing plates one by one. A protrusion may be formed beforehand at one or more surfaces of each sealing plate. Also, a sealing plate taking-out apparatus having a suction pad and a projection that protrudes more than the suction pad toward the sealing plate. Due to the air layer formed between adjacent sealing plates, it may be possible to take out the sealing plate one by one from the stack of sealing plates.Type: GrantFiled: March 20, 2007Date of Patent: June 19, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shiro Akiyama, Shigemitsu Nomoto
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Publication number: 20120017827Abstract: Disclosed is a coating die which can recover a coating solution to be wasted in a good manner, while suppressing adhesion of foreign matter onto an object to be coated. A coating apparatus comprising the coating die is also disclosed. Specifically disclosed is a coating die (30) for coating a web (2) with a paste (3), which comprises a main body (31) having a discharge opening (31e) for discharging the paste (3) upwardly, a recovery pan (32c) for recovering the paste (3) flowing out from the discharge opening (31e), and flow passage (grooves (32a, 32a) and shoots (32b, 32b)) which are integrally formed with the main body (31) for the purpose of guiding the paste (3) from the discharge opening (31e) to the recovery pan (32c).Type: ApplicationFiled: March 30, 2009Publication date: January 26, 2012Inventors: Seiji Ishizu, Shigemitsu Nomoto
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Publication number: 20100099004Abstract: A separator suction device for a fuel cell, having a suction plate and a suction pump. A fuel cell separator is placed on the suction plate. The fuel cell separator has flow paths formed as grooves and ridges on one side of thereof and also has a gasket that is a seal member placed around the flow paths. The suction plate attracts the fuel cell separator by suction. The suction pump sucks the fuel cell separator through suction openings formed in the suction plate. The suction plate has a suction groove which receives the gasket and which has a suction opening formed in it. Further, the suction plate preferably has the suction openings at positions where the ridges of the fuel cell separator are to be placed and is made of an elastic material.Type: ApplicationFiled: October 18, 2007Publication date: April 22, 2010Inventor: Shigemitsu Nomoto
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Publication number: 20090252996Abstract: There is provided a conveying method for attracting and conveying separators for a fuel cell, from a stack of the separators, one at a time. According to the conveying method, when a separator arranged at the top of the separators stacked on top of each other is attracted, gas is supplied into a clearance formed between the separator and another separator arranged immediately below the separator. The clearance is formed due to presence of a seal portion that is formed on the separator so as to protrude therefrom in order to provide sealing to at least one of a fluid passage and a fluid manifold formed in the separator.Type: ApplicationFiled: October 9, 2006Publication date: October 8, 2009Inventors: Shigemitsu Nomoto, Shiro Akiyama
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Publication number: 20090047548Abstract: A fuel cell sealing plate taking-out method that may include forming an air layer between adjacent sealing plates and taking out a sealing plate from a stack of sealing plates one by one. A protrusion may be formed beforehand at one or more surfaces of each sealing plate. Also, a sealing plate taking-out apparatus having a suction pad and a projection that protrudes more than the suction pad toward the sealing plate. Due to the air layer formed between adjacent sealing plates, it may be possible to take out the sealing plate one by one from the stack of sealing plates.Type: ApplicationFiled: March 20, 2007Publication date: February 19, 2009Inventors: Shiro Akiyama, Shigemitsu Nomoto