Patents by Inventor Satoshi Kitaoka
Satoshi Kitaoka 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: 11873604Abstract: A high-temperature-steam-oxidation-resistive coated reinforcement fiber applicable to a fiber reinforced composite, is provided with: a reinforcement fiber; a coating layer covering the reinforcement fiber and including a rare-earth silicate; an exfoliative layer intervening in an interface between the coating layer and the reinforcement fiber; and a supplemental coating layer covering the reinforcement fiber, the exfoliative layer and the coating layer.Type: GrantFiled: May 19, 2020Date of Patent: January 16, 2024Assignees: IHI CORPORATION, NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY, JAPAN FINE CERAMICS CENTERInventors: Takeshi Nakamura, Masahiro Kotani, Ken Goto, Akihiko Ito, Satoshi Kitaoka, Daisaku Yokoe, Tetsushi Matsuda
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Patent number: 11724492Abstract: A liquid discharge apparatus includes a head including a discharge port. The head discharges a liquid from the discharge port toward an object. The liquid discharge apparatus further includes a liquid receiving surface that receives the liquid discharged from the discharge port, a contact part that contacts the discharge port, a moving unit that holds at least one of the liquid receiving surface and the contact part, and a holder. The moving unit is movable between a facing position where at least one of the liquid receiving surface and the contact part faces the discharge port and a position where the liquid receiving surface and the contact part do not face the discharge port. The holder movably holds the discharge port of the head in a discharge direction to discharge the liquid.Type: GrantFiled: March 23, 2021Date of Patent: August 15, 2023Assignee: RICOH COMPANY, LTD.Inventor: Satoshi Kitaoka
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Publication number: 20230182472Abstract: A liquid discharge apparatus includes a carriage (1), a liquid discharge head (300, 300C, 300K, 300M, 300Y, 300S, 300W) having a discharge port (P1, P2), a first driver (92), and a second driver (93). The carriage is movable along at least one of a first axis (X) and a second axis (Y) intersecting the first axis. The liquid discharge head is held by the carriage and discharges a liquid from the discharge port toward an object (100) in a direction along a third axis (Z) intersecting the first axis and the second axis. The first driver moves the carriage along the third axis. The second driver moves the liquid discharge head along the third axis relative to the carriage.Type: ApplicationFiled: July 13, 2021Publication date: June 15, 2023Inventor: Satoshi KITAOKA
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Patent number: 11407219Abstract: A liquid discharge apparatus includes a head to discharge a liquid containing a solvent from a discharge port toward an object, a concentration detector to detect a vapor concentration of the solvent, and circuitry to causes the head to discharge the liquid from the discharge port while moving the discharge port of the head in a movement direction perpendicular to a discharge direction to discharge the liquid. When the vaper concentration is equal to or higher than a first threshold, the circuitry stops moving the head in the movement direction and causes the head to stop discharging the liquid from the discharge port. When the vaper concentration is less than a second threshold, the circuitry resumes moving the head in the movement direction from a stop position where the head stops moving in the movement direction and causes the head to resume discharging the liquid from the discharge port.Type: GrantFiled: March 23, 2021Date of Patent: August 9, 2022Assignee: RICOH COMPANY, LTD.Inventors: Hiroomi Yokomaku, Satoshi Kitaoka
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Patent number: 11312156Abstract: A drying device includes a contact heater unit to contact and heat a medium. The contact heater unit includes a plurality of heating members each having a curved contact face to contact the medium among plural heating members of the plurality of heating members to contact a first surface of the medium opposite a second surface of the medium on which liquid is applied. The plurality of heating members includes a first heating member and a plurality of second heating members. The first heating member has a maximum contact distance to contact the medium. The plurality of second heating members is disposed upstream from the first heating member in a direction of conveyance of the medium. Two heating members of the plurality of second heating members immediately upstream from the first heating member in the direction of conveyance of the medium contact the first surface of the medium.Type: GrantFiled: July 19, 2019Date of Patent: April 26, 2022Assignee: RICOH COMPANY, LTD.Inventors: Ken Onodera, Sho Sawahata, Junji Nakai, Toshihiro Yoshinuma, Yasuhisa Katoh, Hirokazu Ikenoue, Satoshi Kitaoka, Hideaki Nishimura
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Patent number: 11254143Abstract: An image forming apparatus includes an image forming unit to form an image on a recording medium by discharging liquid droplets onto the medium; and a media heater to heat the medium by contacting a rear surface of the medium opposite a surface of the medium on which the image is formed, in which the media heater includes a contact member with a contact surface having a predetermined curvature that the medium contacts, the contact member is a roller member, and the medium closely contacts the contact surface of the contact member across an entire width of the medium in a direction perpendicular to the media conveyance direction.Type: GrantFiled: September 17, 2020Date of Patent: February 22, 2022Assignee: RICOH COMPANY, LTD.Inventors: Yoshiaki Hoshino, Kenji Sato, Hirokazu Ikenoue, Satoshi Kitaoka, Hideaki Nishimura, Yoko Ishii
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Publication number: 20210291516Abstract: A liquid discharge apparatus includes a head to discharge a liquid containing a solvent from a discharge port toward an object, a concentration detector to detect a vapor concentration of the solvent, and circuitry to causes the head to discharge the liquid from the discharge port while moving the discharge port of the head in a movement direction perpendicular to a discharge direction to discharge the liquid. When the vaper concentration is equal to or higher than a first threshold, the circuitry stops moving the head in the movement direction and causes the head to stop discharging the liquid from the discharge port. When the vaper concentration is less than a second threshold, the circuitry resumes moving the head in the movement direction from a stop position where the head stops moving in the movement direction and causes the head to resume discharging the liquid from the discharge port.Type: ApplicationFiled: March 23, 2021Publication date: September 23, 2021Inventors: Hiroomi YOKOMAKU, Satoshi KITAOKA
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Publication number: 20210291514Abstract: A liquid discharge apparatus includes a head including a discharge port. The head discharges a liquid from the discharge port toward an object. The liquid discharge apparatus further includes a liquid receiving surface that receives the liquid discharged from the discharge port, a contact part that contacts the discharge port, a moving unit that holds at least one of the liquid receiving surface and the contact part, and a holder. The moving unit is movable between a facing position where at least one of the liquid receiving surface and the contact part faces the discharge port and a position where the liquid receiving surface and the contact part do not face the discharge port. The holder movably holds the discharge port of the head in a discharge direction to discharge the liquid.Type: ApplicationFiled: March 23, 2021Publication date: September 23, 2021Inventor: Satoshi KITAOKA
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Patent number: 11097556Abstract: A drying device includes a plurality of guide rollers and a heater. The plurality of guide rollers is configured to contact a liquid applied face of a drying target object that is conveyed with liquid applied to the liquid applied face, while the drying target object is dried. The plurality of guide rollers includes at least one guide roller having a surface roughness of from 2 to 8. The heater is configured to heat the drying target object while the plurality of guide rollers guides the drying target object. A printer includes a liquid application device configured to apply liquid to a drying target object, and the drying device.Type: GrantFiled: July 17, 2019Date of Patent: August 24, 2021Assignee: Ricoh Company, Ltd.Inventors: Yoshiaki Hoshino, Osamu Takehira, Hirokazu Ikenoue, Satoshi Kitaoka
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Patent number: 11090949Abstract: A dryer for conveying and drying an object to be dried, the dryer includes a conveyor including a first path and a second path along which the object to be dried is conveyed, a conveyance direction of the second path being different from a conveyance direction of the first path, and a blower to blow air onto the object to be dried. The blower includes a first air outlet that faces the first path and blows the air onto the object to be dried conveyed along the first path, and a second air outlet that faces the second path and blows the air onto the object to be dried conveyed along the second path.Type: GrantFiled: September 9, 2019Date of Patent: August 17, 2021Assignee: Ricoh Company, Ltd.Inventors: Satoshi Kitaoka, Toshihiro Yoshinuma, Ken Onodera
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Publication number: 20210199054Abstract: A thermal barrier coating material contains a compound X that is a cation-deficient-type defective perovskite complex oxide. Unit cells of the compound X each include six oxygen atoms and has a structure in which two octahedrons sharing one oxygen atom are aligned. In the compound X, central axes of two octahedrons that belong to adjacent unit cells, respectively, and are adjacent to each other are inclined relative to each other. A plurality of sets of the two octahedrons that belong to the adjacent unit cells, respectively, and are adjacent to each other are arranged to form a periodic structure in which octahedrons having different inclinations are alternately arranged, and the compound X has a boundary surface at which a periodicity of the periodic structure changes, in a crystal structure thereof.Type: ApplicationFiled: September 2, 2019Publication date: July 1, 2021Applicants: JAPAN FINE CERAMICS CENTER, TOCALO CO., LTD.Inventors: Tsuneaki MATSUDAIRA, Satoshi KITAOKA, Naoki KAWASHIMA, Takeharu KATO, Daisaku YOKOE, Takashi OGAWA, Craig FISHER, Yoichiro HABU, Mikako NAGAO, Yoshiyasu ITO, Yuhei OHIDE, Kaito TAKAGI
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Patent number: 11014379Abstract: A drying device includes a contact heater unit to contact and heat a medium. The contact heater unit includes a plurality of heating members each having a curved contact face to contact the medium among plural heating members of the plurality of heating members to contact a first surface of the medium opposite a second surface of the medium on which liquid is applied. The plurality of heating members includes a first heating member and a plurality of second heating members. The first heating member has a maximum contact distance to contact the medium. The plurality of second heating members is disposed upstream from the first heating member in a direction of conveyance of the medium. Two heating members of the plurality of second heating members immediately upstream from the first heating member in the direction of conveyance of the medium contact the first surface of the medium.Type: GrantFiled: July 23, 2019Date of Patent: May 25, 2021Assignee: Ricoh Company, Ltd.Inventors: Ken Onodera, Sho Sawahata, Junji Nakai, Toshihiro Yoshinuma, Yasuhisa Katoh, Hirokazu Ikenoue, Satoshi Kitaoka, Hideaki Nishimura
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Publication number: 20210047968Abstract: A thermal barrier coating includes: a metal bonding layer made of an alloy containing Al; a thermal barrier layer; and an intermediate layer provided between the metal bonding layer and the thermal barrier layer. The thermal barrier layer contains a compound represented by the following general formula (1), LnxTayHfzO(3x+5y+4z)/2 (1) (wherein Ln is an atom of one element selected from among rare earth elements, x is 0 to 1.0, y is 0.8 to 3.0, and z is 0 to 7.0). The intermediate layer contains at least one layer selected from among the following (A) to (C): (A) a layer containing hafnium oxide (HfO2) as a main component; (B) a layer containing, as a main component, a compound consisting of tantalum (Ta), hafnium (Hf), and oxygen (O); and (C) a layer containing, as a main component, a compound consisting of a rare earth element, tantalum (Ta), hafnium (Hf), and oxygen (O).Type: ApplicationFiled: March 1, 2019Publication date: February 18, 2021Applicants: JAPAN FINE CERAMICS CENTER, TOCALO CO.,LTD.Inventors: Tsuneaki MATSUDAIRA, Satoshi KITAOKA, Naoki KAWASHIMA, Daisaku YOKOE, Makoto TANAKA, Yoichiro HABU, Mikako NAGAO, Kazuo NODA, Yoshiyasu ITO, Yuhei OHIDE, Kaito TAKAGI
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Patent number: 10889526Abstract: An environmental resistant coating member includes a SiC long fiber-reinforced ceramics substrate and an environmental barrier coating layer provided on the whole surface of the SiC long fiber-reinforced ceramics substrate. The environmental barrier coating layer includes a SiAlON bonding layer laminated on the SiC long fiber-reinforced ceramics substrate, a mullite layer laminated on the SiAlON bonding layer, a reaction inhibition layer laminated on the mullite layer, and a gradient layer formed on the reaction inhibition layer that gradually changes from a rare-earth disilicate to a rare-earth monosilicate. The reaction inhibition layer includes at least one of an alumina layer, a garnet layer, and a rare-earth (mono)silicate layer. When the reaction inhibition layer includes two or more of these layers, the layers are formed in the order of the alumina layer, the garnet layer, and the rare-earth (mono)silicate layer from a mullite layer side toward a gradient layer side.Type: GrantFiled: February 21, 2017Date of Patent: January 12, 2021Assignees: Japan Fine Ceramics Center, IHI CornorationInventors: Norio Yamaguchi, Taishi Yokoi, Kenji Nakahira, Hiroshi Nomura, Satoshi Kitaoka, Takeshi Nakamura, Tsuyoshi Takemoto
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Publication number: 20210001648Abstract: An image forming apparatus includes an image forming unit to form an image on a recording medium by discharging liquid droplets onto the medium; and a media heater to heat the medium by contacting a rear surface of the medium opposite a surface of the medium on which the image is formed, in which the media heater includes a contact member with a contact surface having a predetermined curvature that the medium contacts, the contact member is a roller member, and the medium closely contacts the contact surface of the contact member across an entire width of the medium in a direction perpendicular to the media conveyance direction.Type: ApplicationFiled: September 17, 2020Publication date: January 7, 2021Applicant: RICOH COMPANY, LTD.Inventors: Yoshiaki HOSHINO, Kenji SATO, Hirokazu IKENOUE, Satoshi KITAOKA, Hideaki NISHIMURA, Yoko ISHII
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Patent number: 10800187Abstract: An image forming apparatus includes an image forming unit to form an image on a recording medium by discharging liquid droplets onto the medium; and a media heater to heat the medium by contacting a rear surface of the medium opposite a surface of the medium on which the image is formed, in which the media heater includes a contact member with a contact surface having a predetermined curvature that the medium contacts, the contact member is a roller member, and the medium closely contacts the contact surface of the contact member across an entire width of the medium in a direction perpendicular to the media conveyance direction.Type: GrantFiled: January 17, 2018Date of Patent: October 13, 2020Assignee: RICOH COMPANY, LTD.Inventors: Yoshiaki Hoshino, Kenji Sato, Hirokazu Ikenoue, Satoshi Kitaoka, Hideaki Nishimura, Yoko Ishii
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Publication number: 20200308832Abstract: A method of designing a rolled H-section steel includes: setting a height dimension H from an upper flange to a lower flange, a width dimension W of each of the upper flange and the lower flange, a plate thickness tw of a web, and a plate thickness tf of each of the upper flange and the lower flange so that, when it is assumed that a value obtained by dividing a second moment of area Ix about a strong axis by an outer circumferential length Lp in a cross-sectional shape when viewed in a cross section perpendicular to a member axis direction is a surface treatment economy Ix/Lp and an area of the cross-sectional shape is S, a predetermined relational formula is satisfied.Type: ApplicationFiled: February 19, 2018Publication date: October 1, 2020Applicant: Nippon Steel CorporationInventors: Koji HANYA, Satoshi KITAOKA, Yuusuke SUZUKI
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Publication number: 20200277727Abstract: A high-temperature-steam-oxidation-resistive coated reinforcement fiber applicable to a fiber reinforced composite, is provided with: a reinforcement fiber; a coating layer covering the reinforcement fiber and including a rare-earth silicate; an exfoliative layer intervening in an interface between the coating layer and the reinforcement fiber; and a supplemental coating layer covering the reinforcement fiber, the exfoliative layer and the coating layer.Type: ApplicationFiled: May 19, 2020Publication date: September 3, 2020Applicants: IHI CORPORATION, NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY, JAPAN FINE CERAMICS CENTERInventors: Takeshi NAKAMURA, Masahiro Kotani, Ken Goto, Akihiko Ito, Satoshi Kitaoka, Daisaku Yokoe, Tetsushi Matsuda
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Publication number: 20200023654Abstract: A drying device includes a plurality of guide rollers and a heater. The plurality of guide rollers is configured to contact a liquid applied face of a drying target object that is conveyed with liquid applied to the liquid applied face, while the drying target object is dried. The plurality of guide rollers includes at least one guide roller having a surface roughness of from 2 to 8. The heater is configured to heat the drying target object while the plurality of guide rollers guides the drying target object. A printer includes a liquid application device configured to apply liquid to a drying target object, and the drying device.Type: ApplicationFiled: July 17, 2019Publication date: January 23, 2020Applicant: Ricoh Company, Ltd.Inventors: Yoshiaki Hoshino, Osamu Takehira, Hirokazu Ikenoue, Satoshi Kitaoka
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Publication number: 20200001622Abstract: A dryer for conveying and drying an object to be dried, the dryer includes a conveyor including a first path and a second path along which the object to be dried is conveyed, a conveyance direction of the second path being different from a conveyance direction of the first path, and a blower to blow air onto the object to be dried. The blower includes a first air outlet that faces the first path and blows the air onto the object to be dried conveyed along the first path, and a second air outlet that faces the second path and blows the air onto the object to be dried conveyed along the second path.Type: ApplicationFiled: September 9, 2019Publication date: January 2, 2020Applicant: Ricoh Company, Ltd.Inventors: Satoshi Kitaoka, Toshihiro Yoshinuma, Ken Onodera