Patents by Inventor Kenji Nozawa

Kenji Nozawa 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).

  • Patent number: 12083789
    Abstract: An attachment mechanism includes a first holding member and a second holding member. The first holding member is configured to hold a device side plate of a belt device to attach a main body side plate of an apparatus in which the belt device is incorporated. The second holding member is configured to be fixed to the first holding member. The first holding member and the second folding member are configured to adjust a posture of the device side plate with respect to the main body side plate in assembly of the belt device.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: September 10, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroki Ishihara, Takehiro Nakamura, Kenji Nozawa
  • Patent number: 11993085
    Abstract: 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: Grant
    Filed: June 8, 2022
    Date of Patent: May 28, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Ryusaku Hida, Kazuaki Kamihara, Kohki Asada, Kenji Nozawa, Genichiroh Kawamichi, Hiroshi Sawase, Yoshihiro Takahashi, Shun Saito
  • Publication number: 20240158191
    Abstract: An open and close device, a sheet conveyor, and an image forming apparatus. The open and close device includes an open and close portion to open or shut, a biasing mechanism to bias the open and close portion in an opening direction, and a holder to hold the open and close portion shut. The biasing mechanism includes a first spring whose biasing force is invariable regardless of a stroke of the first spring, and a second spring whose biasing force is variable due to a stroke of the second spring. The sheet conveyor includes the open and close device, and the open and close portion includes a conveyor to convey a sheet. The image forming apparatus includes the sheet conveyor.
    Type: Application
    Filed: October 23, 2023
    Publication date: May 16, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroki ISHIHARA, Kenji NOZAWA, Takehiro NAKAMURA
  • Publication number: 20240092595
    Abstract: 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: Application
    Filed: September 18, 2023
    Publication date: March 21, 2024
    Inventors: Kohki ASADA, Kenji NOZAWA, Genichiroh KAWAMICHI, Takayuki SEKI, Kazuaki KAMIHARA, Ryusaku HIDA
  • Patent number: 11890859
    Abstract: 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: Grant
    Filed: August 25, 2021
    Date of Patent: February 6, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kohki Asada, Kazuaki Kamihara, Masato Ogawa, Hiroshi Sawase, Yoshihiro Takahashi, Ryusaku Hida, Kenji Nozawa, Genichiroh Kawamichi
  • Publication number: 20240009134
    Abstract: A preparation containing saxagliptin having improved stability and a method for producing the same are provided. According to an embodiment of the present invention, a preparation containing saxagliptin including a plain tablet part containing one or more first additive agent selected from a group consisting of D-mannitol, lactose, anhydrous lactose, and anhydrous dibasic calcium phosphate, the plain tablet part containing less than 35% by weight of crystalline cellulose with respect to 100% by weight of the plain tablet part, and a film coating part in contact with the plain tablet part and containing saxagliptin, a salt thereof, or a hydrate thereof, and a method for producing the same are provided.
    Type: Application
    Filed: September 22, 2023
    Publication date: January 11, 2024
    Inventors: Kenji NOZAWA, Wataru IZUI, Ayane NATSUME, Daiki BIRUKAWA
  • Patent number: 11786472
    Abstract: A preparation containing saxagliptin having improved stability and a method for producing the same are provided. According to an embodiment of the present invention, a preparation containing saxagliptin including a plain tablet part containing one or more first additive agent selected from a group consisting of D-mannitol, lactose, anhydrous lactose, and anhydrous dibasic calcium phosphate, the plain tablet part containing less than 35% by weight of crystalline cellulose with respect to 100% by weight of the plain tablet part, and a film coating part in contact with the plain tablet part and containing saxagliptin, a salt thereof, or a hydrate thereof, and a method for producing the same are provided.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: October 17, 2023
    Assignee: SAWAI PHARMACEUTICAL CO., LTD.
    Inventors: Kenji Nozawa, Wataru Izui, Ayane Natsume, Daiki Birukawa
  • Publication number: 20230303333
    Abstract: A device attaches and detaches at least one of rollers in a belt conveyor in which an endless belt is wound around the rollers between a front plate and a rear plate of the belt conveyor. The device includes a guide and a roller holder. The guide has a base end and extends along a longitudinal direction of the detachable roller and includes a guide groove. The roller holder holds the detachable roller and includes an engagement portion, another engagement portion, and a guided portion. The engagement portion detachably engages with the front plate. The other engagement portion detachably engages with the rear plate. The guided portion slides along the guide groove toward the rear side or the front side of the device to engage or disengage the engagement portion with or from the front plate and engage or disengage the other engagement portion with or from the rear plate.
    Type: Application
    Filed: March 23, 2023
    Publication date: September 28, 2023
    Inventors: Hiroki ISHIHARA, Kohki ASADA, Teppei KIKUCHI, Kenji NOZAWA, Takehiro NAKAMURA
  • Patent number: 11752782
    Abstract: 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: Grant
    Filed: May 19, 2022
    Date of Patent: September 12, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kohki Asada, Kenji Nozawa, Kazuaki Kamihara, Genichiroh Kawamichi, Ryusaku Hida
  • Patent number: 11691439
    Abstract: 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: Grant
    Filed: December 29, 2021
    Date of Patent: July 4, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kohki Asada, Kenji Nozawa, Genichiroh Kawamichi, Kazuaki Kamihara, Ryusaku Hida
  • Patent number: 11640128
    Abstract: 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: Grant
    Filed: August 17, 2021
    Date of Patent: May 2, 2023
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuhiro Shimojima, Kenji Nozawa, Genichiroh Kawamichi, Masato Ogawa, Kohki Asada, Kazuaki Kamihara, Hiroshi Sawase, Ryusaku Hida
  • Publication number: 20230011940
    Abstract: 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: Application
    Filed: June 8, 2022
    Publication date: January 12, 2023
    Inventors: Ryusaku HIDA, Kazuaki KAMIHARA, Kohki ASADA, Kenji NOZAWA, Genichiroh KAWAMICHI, Hiroshi SAWASE, Yoshihiro TAKAHASHI, Shun SAITO
  • Publication number: 20220402280
    Abstract: 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: Application
    Filed: May 19, 2022
    Publication date: December 22, 2022
    Inventors: Kohki ASADA, Kenji NOZAWA, Kazuaki KAMIHARA, Genichiroh KAWAMICHI, Ryusaku HIDA
  • Patent number: 11472210
    Abstract: A cooling device includes a cooling member to absorb heat from a conveyed sheet and a plurality of cooling units to cool the cooling member. Each of the cooling units includes a coolant channel through which a coolant flows and a liquid-cooling device configured to cool the coolant that flows in the coolant channel. The coolant channels are disposed on or inside the cooling member and arranged side by side in a sheet conveyance direction. The coolant channels includes a downstream coolant channel being downstream from at least one of the plurality of coolant channels in the sheet conveyance direction, and an upstream coolant channel being upstream from the downstream coolant channel in the sheet conveyance direction. One of the liquid-cooling devices coupled to the downstream coolant channel has a cooling capacity higher than a cooling capacity of another of the liquid-cooling devices coupled to the upstream coolant channel.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: October 18, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiroki Ishihara, Kohki Asada, Kenji Nozawa, Satoshi Aizawa
  • Publication number: 20220242142
    Abstract: 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: Application
    Filed: December 29, 2021
    Publication date: August 4, 2022
    Inventors: Kohki ASADA, Kenji NOZAWA, Genichiroh KAWAMICHI, Kazuaki KAMIHARA, Ryusaku HIDA
  • Patent number: 11292271
    Abstract: 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: Grant
    Filed: December 14, 2020
    Date of Patent: April 5, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Daisuke Nakamura, Masato Ogawa, Kenji Nozawa, Kohki Asada, Hiroshi Sawase, Kazuaki Kamihara, Yoshihiro Takahashi, Ryusaku Hida
  • Patent number: 11285737
    Abstract: 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: Grant
    Filed: December 9, 2020
    Date of Patent: March 29, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kohki Asada, Kazuaki Kamihara, Masato Ogawa, Hiroshi Sawase, Yoshihiro Takahashi, Genichiroh Kawamichi, Kenji Nozawa, Ryusaku Hida
  • Publication number: 20220073295
    Abstract: An attachment mechanism includes a first holding member and a second holding member. The first holding member is configured to hold a device side plate of a belt device to attach a main body side plate of an apparatus in which the belt device is incorporated. The second holding member is configured to be fixed to the first holding member. The first holding member and the second folding member are configured to adjust a posture of the device side plate with respect to the main body side plate in assembly of the belt device.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 10, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroki ISHIHARA, Takehiro NAKAMURA, Kenji NOZAWA
  • Publication number: 20220066361
    Abstract: 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: Application
    Filed: August 17, 2021
    Publication date: March 3, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Kazuhiro Shimojima, Kenji Nozawa, Genichiroh Kawamichi, Masato Ogawa, Kohki Asada, Kazuaki Kamihara, Hiroshi Sawase, Ryusaku Hida
  • Publication number: 20220063300
    Abstract: 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: Application
    Filed: August 25, 2021
    Publication date: March 3, 2022
    Inventors: Kohki ASADA, Kazuaki KAMIHARA, Masato OGAWA, Hiroshi SAWASE, Yoshihiro TAKAHASHI, Ryusaku HIDA, Kenji NOZAWA, Genichiroh KAWAMICHI