Patents by Inventor Yasuhide FUKUSHIMA
Yasuhide FUKUSHIMA 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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Publication number: 20230390957Abstract: A press working method for forming by a press working apparatus, in a film material made of resin, a passage hole through which a fluid for a fuel cell flows, includes a placing step, a gripping step, and a piercing step. In the piercing step, a secondary die and a holder grip an outer peripheral portion of the film material. In the piercing step, a piercing punch punches out the film material is a state in which the press working apparatus does not contact an upper surface of the film material in an adjacent portion surrounding a portion to be punched out by the piercing punch.Type: ApplicationFiled: May 26, 2023Publication date: December 7, 2023Inventors: Yasuhide FUKUSHIMA, Nobuyuki SASAKI, Nao IDICHI, Kazuki KAWAMURA
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Patent number: 11827471Abstract: A sheet feeding device includes a storage, a discharger, an angle adjuster, and an urging body. The storage stores a sheet bundle. The discharger contacts and discharge an uppermost sheet of the sheet bundle from the storage in a sheet conveying direction in which the uppermost sheet is conveyed. The angle adjuster changes an angle according to a remaining amount of the sheet bundle in the storage. The urging body urges a trailing end of the uppermost sheet in the sheet conveying direction toward the discharger in stages according to the remaining amount.Type: GrantFiled: September 16, 2021Date of Patent: November 28, 2023Assignee: RICOH COMPANY, LTD.Inventor: Yasuhide Fukushima
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Patent number: 11767185Abstract: A sheet conveying device includes a pair of rollers, a biasing member, a guide member, a biasing support, and a biasing force changer. The pair of rollers includes a first roller and a second roller disposed in contact with the first roller. The pair of rollers is configured to hold a sheet between the first roller and the second roller. The biasing member is configured to bias the first roller toward the second roller. The biasing support is configured to support the biasing member and has a guide target member configured to slide along the guide member to move the biasing support. The biasing force changer is configured to change a biasing force of the biasing member along with movement of the biasing support. The guide target member has a portion projecting into a sheet conveyance passage through which the sheet is conveyed by the pair of rollers.Type: GrantFiled: January 6, 2021Date of Patent: September 26, 2023Assignee: Ricoh Company, Ltd.Inventors: Yasuhide Fukushima, Yu Wakabayashi, Yuuki Shiga, Kazuya Yamamoto, Ryohhei Ohya
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Patent number: 11708234Abstract: A sheet conveying device includes a pair of rollers including a first roller and a second roller to hold a sheet conveyed between the first and second rollers; a biasing member to bias the first roller toward the second roller; a biasing force changer to change a biasing force of the biasing member; control circuitry to, when a predetermined changing condition is met, cause the changer to change the biasing force and cause the rollers to convey the sheet; an operation detector to detect a changing operation of the changer; and a notification device to notify an abnormality of the changing operation when the operation detector detects the abnormality. When the operation detector detects the abnormality, the control circuitry performs sheet conveyance control to cause the rollers to convey the sheet without causing the changer to change the biasing force, regardless of whether the predetermined changing condition is met.Type: GrantFiled: January 11, 2021Date of Patent: July 25, 2023Assignee: RICOH COMPANY, LTD.Inventors: Yu Wakabayashi, Kazuya Yamamoto, Yasuhide Fukushima, Yuuki Shiga, Ryohhei Ohya
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Publication number: 20220119212Abstract: A sheet feeding device includes a storage, a discharger, an angle adjuster, and an urging body. The storage stores a sheet bundle. The discharger contacts and discharge an uppermost sheet of the sheet bundle from the storage in a sheet conveying direction in which the uppermost sheet is conveyed. The angle adjuster changes an angle according to a remaining amount of the sheet bundle in the storage. The urging body urges a trailing end of the uppermost sheet in the sheet conveying direction toward the discharger in stages according to the remaining amount.Type: ApplicationFiled: September 16, 2021Publication date: April 21, 2022Applicant: Ricoh Company, Ltd.Inventor: Yasuhide FUKUSHIMA
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Patent number: 11201336Abstract: In a production method and a production apparatus for producing a joint separator, in the state where first and second separators are stacked together, a step of fixing the first and second separators by holding the first and second separators between a base and a holder is performed. Thereafter, a step of welding the first and second separators by radiating a laser light from laser light emitting units, through gaps provided in the holder is performed. After the welding step, an additional pressing step of moving pressing members ahead through the gaps to press heat affected zones welded by the laser light, by the pressing members is performed.Type: GrantFiled: September 4, 2019Date of Patent: December 14, 2021Assignee: HONDA MOTOR CO., LTD.Inventors: Yohei Kataoka, Yasuhide Fukushima, Toshiki Kawamura
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Patent number: 11156557Abstract: A chemiluminescence analyzer includes a reactor to cause waste liquid discharged from a blood purification apparatus to react with a reagent solution, a photodetector to measure an intensity of chemiluminescence arising in the reactor, a first liquid conveyor to convey the waste liquid from a waste liquid passage of the blood purification apparatus to the reactor, and a second liquid conveyor to convey the reagent solution to the reactor. The chemiluminescence analyzer further includes a liquid mixture passage extending from the reactor to convey a liquid mixture including the waste liquid and the reagent solution after reaction, a joint to couple the liquid mixture passage to the waste liquid passage of the blood purification apparatus, and an electric interface for connection with an external device.Type: GrantFiled: March 16, 2018Date of Patent: October 26, 2021Assignee: Ricoh Company, Ltd.Inventors: Toshio Yanata, Masafumi Hashiguchi, Yasuhide Fukushima, Yutaro Hoshino, Mikihiko Takao
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Publication number: 20210221636Abstract: A sheet conveying device includes a pair of rollers including a first roller and a second roller to hold a sheet conveyed between the first and second rollers; a biasing member to bias the first roller toward the second roller; a biasing force changer to change a biasing force of the biasing member; control circuitry to, when a predetermined changing condition is met, cause the changer to change the biasing force and cause the rollers to convey the sheet; an operation detector to detect a changing operation of the changer; and a notification device to notify an abnormality of the changing operation when the operation detector detects the abnormality. When the operation detector detects the abnormality, the control circuitry performs sheet conveyance control to cause the rollers to convey the sheet without causing the changer to change the biasing force, regardless of whether the predetermined changing condition is met.Type: ApplicationFiled: January 11, 2021Publication date: July 22, 2021Applicant: Ricoh Company, Ltd.Inventors: Yu WAKABAYASHI, Kazuya YAMAMOTO, Yasuhide FUKUSHIMA, Yuuki SHIGA, Ryohhei OHYA
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Publication number: 20210214176Abstract: A sheet conveying device includes a pair of rollers, a biasing member, a guide member, a biasing support, and a biasing force changer. The pair of rollers includes a first roller and a second roller disposed in contact with the first roller. The pair of rollers is configured to hold a sheet between the first roller and the second roller. The biasing member is configured to bias the first roller toward the second roller. The biasing support is configured to support the biasing member and has a guide target member configured to slide along the guide member to move the biasing support. The biasing force changer is configured to change a biasing force of the biasing member along with movement of the biasing. support. The guide target member has a portion projecting into a sheet conveyance passage through which the sheet is conveyed by the pair of rollers.Type: ApplicationFiled: January 6, 2021Publication date: July 15, 2021Applicant: Ricoh Company, Ltd.Inventors: Yasuhide FUKUSHIMA, Yu WAKABAYASHI, Yuuki SHIGA, Kazuya YAMAMOTO, Ryohhei OHYA
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Patent number: 10926487Abstract: A press forming method uses a press forming apparatus for forming a film formed product as a formed film of a solid polymer electrolyte fuel cell. The method includes the step of trimming, in the state where a film material is held between a first die and a holder, by moving a second die closer to the first die to cut the film material using a trimming blade provided for the second die. A blade edge of the trimming blade includes two inclined blade edges inclined toward a proximal side of a blade part from the center to both ends of the blade part in the direction in which the blade part extends.Type: GrantFiled: March 5, 2018Date of Patent: February 23, 2021Assignee: HONDA MOTOR CO., LTD.Inventor: Yasuhide Fukushima
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Patent number: 10670532Abstract: A measuring apparatus includes a light receiving device, a housing, an optical window, an electrical connection line, and a line enclosure. The light receiving device receives light and output a signal. The housing, made of a conductive material, covers the light receiving device. The optical window transmits the light. The optical window includes a conductive part having conductivity. The electrical connection line transmits the signal. The line enclosure is disposed around the electrical connection line and electrically connected to the conductive part and the housing.Type: GrantFiled: August 7, 2018Date of Patent: June 2, 2020Assignee: Ricoh Company, Ltd.Inventors: Masafumi Hashiguchi, Toshio Yanata, Yasuhide Fukushima, Mikihiko Takao
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Publication number: 20200083544Abstract: In a production method and a production apparatus for producing a joint separator, in the state where first and second separators are stacked together, a step of fixing the first and second separators by holding the first and second separators between a base and a holder is performed. Thereafter, a step of welding the first and second separators by radiating a laser light from laser light emitting units, through gaps provided in the holder is performed. After the welding step, an additional pressing step of moving pressing members ahead through the gaps to press heat affected zones welded by the laser light, by the pressing members is performed.Type: ApplicationFiled: September 4, 2019Publication date: March 12, 2020Inventors: Yohei Kataoka, Yasuhide Fukushima, Toshiki Kawamura
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Patent number: 10297841Abstract: A fuel cell includes a frame equipped membrane electrode assembly and a metal separator. The frame equipped membrane electrode assembly includes a membrane electrode assembly and a frame shaped insulating member connected to the membrane electrode assembly. The frame shaped insulating member is provided around the membrane electrode assembly. The metal separator includes a first bipolar plate and a second bipolar plate joined together, and the frame shaped insulating member includes a welding portion welded to the first bipolar plate by resistance welding.Type: GrantFiled: March 29, 2016Date of Patent: May 21, 2019Assignee: Honda Motor Co., Ltd.Inventors: Yoshiyuki Nitta, Yasuhide Fukushima, Masaaki Sakano, Shintaro Sumi
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Publication number: 20190049389Abstract: A measuring apparatus includes a light receiving device, a housing, an optical window, an electrical connection line, and a line enclosure. The light receiving device receives light and output a signal. The housing, made of a conductive material, covers the light receiving device. The optical window transmits the light. The optical window includes a conductive part having conductivity. The electrical connection line transmits the signal. The line enclosure is disposed around the electrical connection line and electrically connected to the conductive part and the housing.Type: ApplicationFiled: August 7, 2018Publication date: February 14, 2019Applicant: Ricoh Company, Ltd.Inventors: Masafumi HASHIGUCHI, Toshio YANATA, Yasuhide FUKUSHIMA, Mikihiko TAKAO
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Publication number: 20180266963Abstract: A chemiluminescence analyzer includes a reactor to cause waste liquid discharged from a blood purification apparatus to react with a reagent solution, a photodetector to measure an intensity of chemiluminescence arising in the reactor, a first liquid conveyor to convey the waste liquid from a waste liquid passage of the blood purification apparatus to the reactor, and a second liquid conveyor to convey the reagent solution to the reactor. The chemiluminescence analyzer further includes a liquid mixture passage extending from the reactor to convey a liquid mixture including the waste liquid and the reagent solution after reaction, a joint to couple the liquid mixture passage to the waste liquid passage of the blood purification apparatus, and an electric interface for connection with an external device.Type: ApplicationFiled: March 16, 2018Publication date: September 20, 2018Applicant: Ricoh Company, Ltd.Inventors: Toshio Yanata, Masafumi Hashiguchi, Yasuhide Fukushima, Yutaro Hoshino, Mikihiko Takao
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Publication number: 20180257312Abstract: A press forming method uses a press forming apparatus for forming a film formed product as a formed film of a solid polymer electrolyte fuel cell. The method includes the step of trimming, in the state where a film material is held between a first die and a holder, by moving a second die closer to the first die to cut the film material using a trimming blade provided for the second die. A blade edge of the trimming blade includes two inclined blade edges inclined toward a proximal side of a blade part from the center to both ends of the blade part in the direction in which the blade part extends.Type: ApplicationFiled: March 5, 2018Publication date: September 13, 2018Inventor: Yasuhide Fukushima
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Publication number: 20160293977Abstract: A fuel cell includes a frame equipped membrane electrode assembly and a metal separator. The frame equipped membrane electrode assembly includes a membrane electrode assembly and a frame shaped insulating member connected to the membrane electrode assembly. The frame shaped insulating member is provided around the membrane electrode assembly. The metal separator includes a first bipolar plate and a second bipolar plate joined together, and the frame shaped insulating member includes a welding portion welded to the first bipolar plate by resistance welding.Type: ApplicationFiled: March 29, 2016Publication date: October 6, 2016Inventors: Yoshiyuki NITTA, Yasuhide FUKUSHIMA, Masaaki SAKANO, Shintaro SUMI
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Patent number: 9240609Abstract: A fuel cell is formed by stacking membrane electrode assemblies and metal separators. The metal separator is formed by adhering and joining together an anode separator and a cathode separator. In the metal separator, a step is provided on an outer circumferential end of the cathode separator, the step being spaced from an outer circumferential end of the anode separator. An adhesive layer is formed on the step between the outer circumferential end of the cathode separator and the outer circumferential end of the anode separator.Type: GrantFiled: April 4, 2012Date of Patent: January 19, 2016Assignee: Honda Motor Co., Ltd.Inventors: Masahiro Fukuta, Yasuhide Fukushima, Masami Kurimoto, Yohei Kataoka
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Publication number: 20150380746Abstract: A frame equipped membrane electrode assembly is formed by joining a membrane electrode assembly (MEA) having different sizes of components together with a resin frame member. A frame shaped adhesive sheet is provided between an inner extension of the resin frame member and an outer marginal portion of the MEA. An inner marginal portion of the adhesive sheet includes an overlapped portion, which overlaps in an electrode thickness direction with the surface of an outer marginal portion of a second gas diffusion layer.Type: ApplicationFiled: June 25, 2015Publication date: December 31, 2015Inventors: Masahiro FUKUTA, Masami KURIMOTO, Yohei KATAOKA, Yasuhide FUKUSHIMA, Junichi NAKAMURA, Takahiro TANAKA, Kohei YOSHIDA
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Publication number: 20120258379Abstract: A fuel cell is formed by stacking membrane electrode assemblies and metal separators. The metal separator is formed by adhering and joining together an anode separator and a cathode separator. In the metal separator, a step is provided on an outer circumferential end of the cathode separator, the step being spaced from an outer circumferential end of the anode separator. An adhesive layer is formed on the step between the outer circumferential end of the cathode separator and the outer circumferential end of the anode separator.Type: ApplicationFiled: April 4, 2012Publication date: October 11, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Masahiro FUKUTA, Yasuhide FUKUSHIMA, Masami KURIMOTO, Yohei KATAOKA