Patents by Inventor Ryuya Yamazaki
Ryuya Yamazaki 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: 20240004343Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: ApplicationFiled: June 27, 2023Publication date: January 4, 2024Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Patent number: 11733646Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: GrantFiled: September 15, 2021Date of Patent: August 22, 2023Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Patent number: 11669043Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: GrantFiled: January 22, 2021Date of Patent: June 6, 2023Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Patent number: 11644790Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: GrantFiled: September 14, 2021Date of Patent: May 9, 2023Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Publication number: 20210405580Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: ApplicationFiled: September 14, 2021Publication date: December 30, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Publication number: 20210405581Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: ApplicationFiled: September 15, 2021Publication date: December 30, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Publication number: 20210223737Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: ApplicationFiled: January 22, 2021Publication date: July 22, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Patent number: 10901361Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: GrantFiled: March 25, 2020Date of Patent: January 26, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Publication number: 20200225613Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: ApplicationFiled: March 25, 2020Publication date: July 16, 2020Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Patent number: 10620580Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: GrantFiled: May 10, 2019Date of Patent: April 14, 2020Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Publication number: 20190332052Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: ApplicationFiled: May 10, 2019Publication date: October 31, 2019Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Patent number: 10303112Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: GrantFiled: July 11, 2018Date of Patent: May 28, 2019Assignee: Brother Kogyo Kabushiki KaishaInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Patent number: 10228650Abstract: An image forming apparatus includes: an apparatus body; a photosensitive drum defining an axis extending in a first direction; a support member movable between an inside position and an outside position relative to the apparatus body; a cleaner for removing waste toner from the photosensitive drum; a first conveyer for conveying the waste toner in the first direction; a conveying unit; and a container for storing the waste toner conveyed by the conveying unit. The conveying unit includes a second conveyer for conveying the waste toner conveyed by the first conveyer in a second direction intersecting with the first direction; and a conveying pipe accommodating the second conveyer and connectable to the container. The conveying pipe includes a shutter for opening and closing a conveyer-side opening formed in a downstream end portion of the conveying pipe in the second direction.Type: GrantFiled: March 30, 2015Date of Patent: March 12, 2019Assignee: Brother Kogyo Kabushiki KaishaInventors: Junichi Hashimoto, Ryuya Yamazaki
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Publication number: 20180321632Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: ApplicationFiled: July 11, 2018Publication date: November 8, 2018Inventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Patent number: 10061258Abstract: A drum unit includes a photosensitive drum, a side plate, a cleaning unit, a waste-toner conveyor unit. The photosensitive drum has a first drum body and a second drum body, each having a photosensitive layer and a supported portion extending from one end of the drum body in a first direction along a rotational axis of the photosensitive drum. The side plate supports the supported portions. The cleaning unit has cleaners and conveyors corresponding to the drum bodies so as to remove waste toner from the photosensitive drums and convey the waste toner removed by the cleaners in the first direction. The waste-toner conveyor unit has a collecting conveyor configured to convey the waste toner conveyed by the. The collecting conveyor is disposed between the side plate and the drum bodies. The collecting conveyor is disposed below the first conveyor.Type: GrantFiled: January 5, 2017Date of Patent: August 28, 2018Assignee: Brother Kogyo Kabushiki KaishaInventors: Junichi Hashimoto, Ryuya Yamazaki
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Patent number: 10048645Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: GrantFiled: January 10, 2018Date of Patent: August 14, 2018Assignee: Brother Kogyo Kabushiki KaishaInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Publication number: 20180129159Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: ApplicationFiled: January 10, 2018Publication date: May 10, 2018Inventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
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Patent number: 9964915Abstract: An image forming apparatus includes a body casing, a drum unit movable between an inside position and an outside position, and a waste toner storage unit. The drum unit includes a photosensitive drum, a cleaning unit configured to remove toner remaining on a surface of the photosensitive drum, a conveying unit including a conveying member to convey the toner in a moving direction of the drum unit, and a conveying tube that can accommodate the conveying member and having a discharging outlet through which the toner is discharged to the waste toner storage unit. Moreover, the conveying tube includes a first conveying tube extending in the moving direction and accommodating the conveying member, and a second conveying tube connectable to the first conveying tube and extending in a direction intersecting with a direction in which the first conveying tube extends.Type: GrantFiled: April 28, 2017Date of Patent: May 8, 2018Assignee: Brother Kogyo Kabushiki KaishaInventors: Junichi Hashimoto, Ryuya Yamazaki
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Patent number: 9910381Abstract: An image-forming apparatus includes a first photosensitive member, a second photosensitive member, an exposure unit, a first developing unit and a second developing unit. The first developing unit includes a first developing roller, a first casing and a first thickness-regulating blade having a first base end and a first free end. The second developing unit includes a second developing roller, a second casing and a second thickness-regulating blade having a second base end and a second free end. The first thickness-regulating blade is disposed between the first developing roller and the exposure unit, or between the first developing roller and a first optical axis of the light to which the first photosensitive member is exposed. The first thickness-regulating blade extends from the first base end to the first free end in a following direction with respect to a moving direction of a peripheral surface of the first developing roller.Type: GrantFiled: August 26, 2011Date of Patent: March 6, 2018Assignee: Brother Kogyo Kabushiki KaishaInventors: Ryuya Yamazaki, Naoya Kamimura
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Patent number: 9891581Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.Type: GrantFiled: November 15, 2016Date of Patent: February 13, 2018Assignee: Brother Kogyo Kabushiki KaishaInventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama