Patents by Inventor Ryusaku HIDA
Ryusaku HIDA 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: 20240408899Abstract: A dryer includes: a conveyor belt having a shape of an endless loop to convey a sheet in a conveyance direction; a drying unit facing an absorption surface of the conveyor belt to dry the sheet on the absorption surface; and an absorber including multiple suction members inside the endless loop of the conveyor belt, the suction members arrayed in the conveyance direction to absorb the sheet onto the absorption surface of the conveyor belt, and at least one suction member of the multiple suction members to generate a suction force different from suction forces of other suction members.Type: ApplicationFiled: June 4, 2024Publication date: December 12, 2024Inventors: Ryusaku HIDA, Kohki ASADA, Kazuaki KAMIHARA, Kenji NOZAWA, Genichiroh KAWAMICHI, Takayuki SEKI, Hiroki ISHIHARA, Takehiro NAKAMURA
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Patent number: 12145354Abstract: A heating device includes a conveyor configured to convey a sheet, the sheet having a first surface on which a liquid is applied and a second surface contacting the conveyor, a first heater facing the first surface opposite to the second surface of the sheet, the first heater configured to heat the sheet, and a second heater configured to heat the conveyor.Type: GrantFiled: December 5, 2022Date of Patent: November 19, 2024Assignee: Ricoh Company, Ltd.Inventors: Hiroshi Sawase, Kazuaki Kamihara, Ryusaku Hida, Masato Ogawa, Kohki Asada, Yoshihiro Takahashi
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Patent number: 11993085Abstract: A heater includes an irradiator configured to irradiate a heating object including a liquid attachment region, onto which a liquid is applied, with an active energy ray, and circuitry configured to control an output of the active energy ray emitted from the irradiator to an edge portion in the liquid attachment region of the heating object to be larger than an output of the active energy ray emitted from the irradiator to a non-edge portion in the liquid attachment region excluding the edge portion.Type: GrantFiled: June 8, 2022Date of Patent: May 28, 2024Assignee: RICOH COMPANY, LTD.Inventors: Ryusaku Hida, Kazuaki Kamihara, Kohki Asada, Kenji Nozawa, Genichiroh Kawamichi, Hiroshi Sawase, Yoshihiro Takahashi, Shun Saito
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Publication number: 20240092595Abstract: A conveyance device includes a conveyance member, a guide, and a rotator. The conveyance member has a conveyance surface with a joint, the conveyance member to convey an object to be conveyed, with the object on the conveyance surface. The guide approaches the conveyance surface and guides the object from or to the conveyance member. The rotator contacts the conveyance surface. The guide displaces in a direction perpendicular to the conveyance surface, in conjunction with displacement of the rotator when the rotator contacts the joint.Type: ApplicationFiled: September 18, 2023Publication date: March 21, 2024Inventors: Kohki ASADA, Kenji NOZAWA, Genichiroh KAWAMICHI, Takayuki SEKI, Kazuaki KAMIHARA, Ryusaku HIDA
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Patent number: 11897254Abstract: A liquid discharge apparatus includes a first liquid that generates heat in an absorption wavelength region of an active energy ray, a first discharger configured to discharge the first liquid, a second liquid that starts polymerization in the absorption wavelength region of the active energy ray, a second discharger configured to discharge the second liquid, and an irradiator configured to irradiate the first liquid and the second liquid with the active energy ray.Type: GrantFiled: February 28, 2022Date of Patent: February 13, 2024Assignee: RICOH COMPANY, LTD.Inventors: Hiroshi Sawase, Kazuaki Kamihara, Kohki Asada, Ryusaku Hida, Yoshihiro Takahashi
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Patent number: 11890859Abstract: A sheet heater includes a first conveyance belt configured to convey a sheet on which a liquid has been discharged in a conveyance direction, a heating unit facing the first conveyance belt, the heating unit configured to heat the sheet conveyed by the first conveyance belt, and a second conveyance belt disposed upstream of the first conveyance belt in the conveyance direction, the second conveyance belt configured to convey the sheet to the first conveyance belt. A surface temperature of the second conveyance belt is lower than a surface temperature of the first conveyance belt when the first conveyance belt and the second conveyance belt convey the sheet.Type: GrantFiled: August 25, 2021Date of Patent: February 6, 2024Assignee: RICOH COMPANY, LTD.Inventors: Kohki Asada, Kazuaki Kamihara, Masato Ogawa, Hiroshi Sawase, Yoshihiro Takahashi, Ryusaku Hida, Kenji Nozawa, Genichiroh Kawamichi
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Patent number: 11752782Abstract: A heating device includes a blower configured to blow air, the blower comprising a channel member defining a channel of the air, and a heater disposed outside the channel member. The channel member has end portions and a central portion in a longitudinal direction, each of the end portions having higher heat absorption property than the central portion, and said each of end portions of the channel member faces the heater.Type: GrantFiled: May 19, 2022Date of Patent: September 12, 2023Assignee: RICOH COMPANY, LTD.Inventors: Kohki Asada, Kenji Nozawa, Kazuaki Kamihara, Genichiroh Kawamichi, Ryusaku Hida
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Patent number: 11691439Abstract: A dryer includes a first airflow generator configured to generate a first airflow to be blown to a sheet conveyed in the blower, a second airflow generator configured to generate a second airflow to exhaust air in the blower outside the blower, and circuitry configured to control the first airflow generator and the second airflow generator to control a blowing amount of the first airflow and an exhaust amount of the second airflow according to a type of the sheet.Type: GrantFiled: December 29, 2021Date of Patent: July 4, 2023Assignee: RICOH COMPANY, LTD.Inventors: Kohki Asada, Kenji Nozawa, Genichiroh Kawamichi, Kazuaki Kamihara, Ryusaku Hida
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Patent number: 11640128Abstract: A sheet conveyor includes a conveyance belt configured to rotate to convey a sheet on which a liquid has been applied in a conveyance direction, and a guide configured to guide the sheet to the conveyance belt, a position of the guide being variable in the conveyance direction.Type: GrantFiled: August 17, 2021Date of Patent: May 2, 2023Assignee: Ricoh Company, Ltd.Inventors: Kazuhiro Shimojima, Kenji Nozawa, Genichiroh Kawamichi, Masato Ogawa, Kohki Asada, Kazuaki Kamihara, Hiroshi Sawase, Ryusaku Hida
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Publication number: 20230108116Abstract: A heating device includes a conveyor configured to convey a sheet, the sheet having a first surface on which a liquid is applied and a second surface contacting the conveyor, a first heater facing the first surface opposite to the second surface of the sheet, the first heater configured to heat the sheet, and a second heater configured to heat the conveyor.Type: ApplicationFiled: December 5, 2022Publication date: April 6, 2023Applicant: Ricoh Company, Ltd.Inventors: Hiroshi Sawase, Kazuaki Kamihara, Ryusaku Hida, Masato Ogawa, Kohki Asada, Yoshihiro Takahashi
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Patent number: 11597217Abstract: A sheet conveyor includes an endless conveyance belt configured to rotate to convey a sheet, a belt heater configured to heat the conveyance belt; and circuitry configured to control the conveyance belt to rotate. The conveyance belt has a belt joint joining both ends of a sheet member to form the conveyance belt, and the circuitry controls the conveyance belt to rotate to receive the sheet in an area of the conveyance belt other than the belt joint of the conveyance belt.Type: GrantFiled: September 17, 2021Date of Patent: March 7, 2023Assignee: Ricoh Company, Ltd.Inventors: Kazuaki Kamihara, Masato Ogawa, Kohki Asada, Hiroshi Sawase, Yoshihiro Takahashi, Ryusaku Hida
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Patent number: 11559997Abstract: A heating device includes a conveyor configured to convey a sheet, the sheet having a first surface on which a liquid is applied and a second surface contacting the conveyor, a first heater facing the first surface opposite to the second surface of the sheet, the first heater configured to heat the sheet, and a second heater configured to heat the conveyor.Type: GrantFiled: April 16, 2021Date of Patent: January 24, 2023Assignee: Ricoh Company, Ltd.Inventors: Hiroshi Sawase, Kazuaki Kamihara, Ryusaku Hida, Masato Ogawa, Kohki Asada, Yoshihiro Takahashi
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Publication number: 20230011940Abstract: A heater includes an irradiator configured to irradiate a heating object including a liquid attachment region, onto which a liquid is applied, with an active energy ray, and circuitry configured to control an output of the active energy ray emitted from the irradiator to an edge portion in the liquid attachment region of the heating object to be larger than an output of the active energy ray emitted from the irradiator to a non-edge portion in the liquid attachment region excluding the edge portion.Type: ApplicationFiled: June 8, 2022Publication date: January 12, 2023Inventors: Ryusaku HIDA, Kazuaki KAMIHARA, Kohki ASADA, Kenji NOZAWA, Genichiroh KAWAMICHI, Hiroshi SAWASE, Yoshihiro TAKAHASHI, Shun SAITO
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Publication number: 20220402280Abstract: A heating device includes a blower configured to blow air, the blower comprising a channel member defining a channel of the air, and a heater disposed outside the channel member. The channel member has end portions and a central portion in a longitudinal direction, each of the end portions having higher heat absorption property than the central portion, and said each of end portions of the channel member faces the heater.Type: ApplicationFiled: May 19, 2022Publication date: December 22, 2022Inventors: Kohki ASADA, Kenji NOZAWA, Kazuaki KAMIHARA, Genichiroh KAWAMICHI, Ryusaku HIDA
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Publication number: 20220281241Abstract: A liquid discharge apparatus includes a first liquid that generates heat in an absorption wavelength region of an active energy ray, a first discharger configured to discharge the first liquid, a second liquid that starts polymerization in the absorption wavelength region of the active energy ray, a second discharger configured to discharge the second liquid, and an irradiator configured to irradiate the first liquid and the second liquid with the active energy ray.Type: ApplicationFiled: February 28, 2022Publication date: September 8, 2022Inventors: Hiroshi SAWASE, Kazuaki KAMIHARA, Kohki ASADA, Ryusaku HIDA, Yoshihiro TAKAHASHI
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Publication number: 20220242142Abstract: A dryer includes a first airflow generator configured to generate a first airflow to be blown to a sheet conveyed in the blower, a second airflow generator configured to generate a second airflow to exhaust air in the blower outside the blower, and circuitry configured to control the first airflow generator and the second airflow generator to control a blowing amount of the first airflow and an exhaust amount of the second airflow according to a type of the sheet.Type: ApplicationFiled: December 29, 2021Publication date: August 4, 2022Inventors: Kohki ASADA, Kenji NOZAWA, Genichiroh KAWAMICHI, Kazuaki KAMIHARA, Ryusaku HIDA
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Publication number: 20220111663Abstract: A sheet conveyor includes an endless conveyance belt configured to rotate to convey a sheet, a belt heater configured to heat the conveyance belt; and circuitry configured to control the conveyance belt to rotate. The conveyance belt has a belt joint joining both ends of a sheet member to form the conveyance belt, and the circuitry controls the conveyance belt to rotate to receive the sheet in an area of the conveyance belt other than the belt joint of the conveyance belt.Type: ApplicationFiled: September 17, 2021Publication date: April 14, 2022Applicant: Ricoh Company, Ltd.Inventors: Kazuaki Kamihara, Masato Ogawa, Kohki Asada, Hiroshi Sawase, Yoshihiro Takahashi, Ryusaku Hida
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Patent number: 11292271Abstract: A heating device includes a heat irradiator configured to heat a sheet on which a liquid is applied and is conveyed in a conveyance direction, an ultraviolet irradiator on a downstream of the heat irradiator in the conveyance direction, the ultraviolet irradiator configured to heat a portion of the sheet, and a circuitry configured to control an output of the heat irradiator and an output of the ultraviolet irradiator based on a thickness of the sheet.Type: GrantFiled: December 14, 2020Date of Patent: April 5, 2022Assignee: RICOH COMPANY, LTD.Inventors: Daisuke Nakamura, Masato Ogawa, Kenji Nozawa, Kohki Asada, Hiroshi Sawase, Kazuaki Kamihara, Yoshihiro Takahashi, Ryusaku Hida
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Patent number: 11285737Abstract: A heating device includes a conveyor configured to convey a sheet onto which a liquid is applied in a conveyance direction, an irradiator including a light emitter on an irradiation surface of the irradiator, the light emitter configured to emit light onto the sheet to heat the sheet with the light, a channel plate between the conveyor and the irradiation surface of the irradiator, an airflow generator configured to generate an airflow along the irradiation surface between the irradiation surface of the irradiator and the channel plate, and a suction device configured to suck and discharge the airflow in a direction from the irradiation surface of the irradiator toward the conveyor.Type: GrantFiled: December 9, 2020Date of Patent: March 29, 2022Assignee: RICOH COMPANY, LTD.Inventors: Kohki Asada, Kazuaki Kamihara, Masato Ogawa, Hiroshi Sawase, Yoshihiro Takahashi, Genichiroh Kawamichi, Kenji Nozawa, Ryusaku Hida
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Publication number: 20220066361Abstract: A sheet conveyor includes a conveyance belt configured to rotate to convey a sheet on which a liquid has been applied in a conveyance direction, and a guide configured to guide the sheet to the conveyance belt, a position of the guide being variable in the conveyance direction.Type: ApplicationFiled: August 17, 2021Publication date: March 3, 2022Applicant: Ricoh Company, Ltd.Inventors: Kazuhiro Shimojima, Kenji Nozawa, Genichiroh Kawamichi, Masato Ogawa, Kohki Asada, Kazuaki Kamihara, Hiroshi Sawase, Ryusaku Hida