Patents by Inventor Junichi Hashimoto
Junichi Hashimoto 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: 20220057744Abstract: The developing cartridge includes a casing, a developing roller, and a first inclined surface. The first inclined surface is positioned at an outer surface of one end portion of the casing in the second direction. The first inclined surface is fixed to the casing and is inclined relative to the first direction. The first inclined surface is movable in the first direction relative to the photosensitive drum between a first position and a second position together with the casing and the developing roller in a state where the developing cartridge 1 is attached to a drum cartridge. In a state where the first inclined surface is at the first position, the developing roller is in contact with the photosensitive drum. In a state where the first inclined surface is at the second position, the developing roller is in separation from the photosensitive drum.Type: ApplicationFiled: September 23, 2021Publication date: February 24, 2022Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Junichi HASHIMOTO, Yuwen WANG
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Patent number: 11256208Abstract: A developing cartridge includes: a casing; a developing roller; a shaft; and a cam. The casing is configured to accommodate developer therein. The developing roller is rotatable about a first axis extending in an axial direction. The shaft extends along a second axis extending in the axial direction. The shaft is movable along the second axis. The cam is movable along the second axis in response to axial movement of the shaft. The cam has a cam surface non-parallel with the second axis.Type: GrantFiled: March 18, 2021Date of Patent: February 22, 2022Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuwen Wang, Junichi Hashimoto, Isao Kishi, Kazuaki Ooka
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Patent number: 11249418Abstract: A developing roller is located nearer a first end than a second end in a first direction. A first boss extends in a second direction and is movable together with a housing. The first boss bears the weight of a developer cartridge when the first boss is supported by a support surface of a first side plate of a drum unit, and is located away from the developing roller in the first direction and the third direction. A first pressure receiving surface is located farther away from the developing roller than the first boss in the third direction. The pressure receiving member receives a pressing force in the third direction from a pressing member of the first side plate of the drum unit. The first boss is located away from the developing roller in the first direction by a first distance. The first pressure receiving surface is located away from the developing roller in the first direction by the first distance or by a second distance smaller than the first distance.Type: GrantFiled: December 3, 2020Date of Patent: February 15, 2022Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuwen Wang, Kazuaki Ooka, Isao Kishi, Junichi Hashimoto
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Publication number: 20220004118Abstract: A developing cartridge includes: a casing, a developing roller, a first agitator, a supply roller, and a second agitator. The casing is configured to accommodate toner. The developing roller is rotatable about a developing roller rotation axis extending in a first direction. The first agitator is configured to agitate the toner. The first agitator is rotatable about a first agitator rotation axis extending in the first direction. The supply roller is positioned between the first agitator and the developing roller. The supply roller is rotatable about a supply roller rotation axis extending in the first direction. The second agitator is positioned between the supply roller and the first agitator. The second agitator is rotatable about a second agitator rotation axis extending in the first direction. A rotation locus of the second agitator is positioned outside of a rotation locus of the first agitator.Type: ApplicationFiled: September 16, 2021Publication date: January 6, 2022Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Kazuaki OOKA, Junichi HASHIMOTO, Shota IRIYAMA, Keigo NAKAJIMA, Kengo YADA
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Publication number: 20220004143Abstract: A developing cartridge includes: a casing; a developing roller; a shaft extending in a first direction; a first inclined surface; a second inclined surface; an elastic member; and a first protrusion. The shaft is movable in the first direction relative to the casing and the developing roller, and is movable in the second direction together with the same. The first inclined surface is positioned at one end portion of the shaft, while the second inclined surface is positioned at another end portion of the shaft. The first and second inclined surfaces are inclined relative to the first direction. The first protrusion is movable in the first direction together with the second inclined surface. The shaft is movable from a first position to a second position when the second inclined surface receives a pressing force directed in a direction from the another end portion to the one end portion.Type: ApplicationFiled: September 16, 2021Publication date: January 6, 2022Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuwen Wang, Junichi Hashimoto
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Patent number: 11204579Abstract: A drawer includes: a photosensitive drum; and a frame to which a developing cartridge is attachable. The photosensitive drum is rotatable about a rotational axis extending in an axial direction. The photosensitive drum has an outer circumferential surface. The developing cartridge includes a developing roller having an outer circumferential surface. The developing cartridge is attachable to the frame in a state where the outer circumferential surface of the developing roller faces the outer circumferential surface of the photosensitive drum. The frame is configured to move the developing roller in a separation direction in response to movement in the axial direction of at least a portion of the developing cartridge attached to the frame. The separation direction is a direction in which the outer circumferential surface of the developing roller separates from the outer circumferential surface of the photosensitive drum.Type: GrantFiled: August 21, 2020Date of Patent: December 21, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuwen Wang, Junichi Hashimoto, Isao Kishi, Kazuaki Ooka
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Patent number: 11169467Abstract: A developer cartridge includes a housing, a developing roller, an agitator, a memory, and a cover. The housing is configured to store toner therein and has one end portion and the other end portion in a first direction. The developing roller is rotatable about a first axis extending in the first direction. The agitator is rotatable about a second axis extending in the first direction. The agitator is positioned spaced apart from the developing roller. The memory includes an electrical contact surface. The electrical contact surface is positioned at an outer surface of the housing and at the one end portion of the housing in the first direction, and is disposed between the developing roller and the agitator in a second direction from the first axis toward the second axis. The cover has an opening open in the second direction and covers the electrical contact surface.Type: GrantFiled: January 28, 2020Date of Patent: November 9, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Junichi Hashimoto, Go Iwasa, Masayoshi Mita
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Publication number: 20210341874Abstract: A developing cartridge includes: a casing; a developing roller rotatable about an axis extending in a first direction; a first cam positioned at one end portion of the casing; a second cam positioned at another end portion of the casing; and a connection member connecting the first cam and the second cam to each other. The first cam is movable relative to the casing and the developing roller in the first direction between a first position and a second position, and the second cam is movable relative to the casing and the developing roller in the first direction between a third position and a fourth position. The second cam is movable from the third position to the fourth position due to a tensile force of the connection member in accordance with movement of the first cam from the first position to the second position.Type: ApplicationFiled: July 19, 2021Publication date: November 4, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Junichi HASHIMOTO, Yasushi OKABE
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Patent number: 11143981Abstract: A developing cartridge includes: a casing, a developing roller, a first agitator, a supply roller, and a second agitator. The casing is configured to accommodate toner. The developing roller is rotatable about a developing roller rotation axis extending in a first direction. The first agitator is configured to agitate the toner. The first agitator is rotatable about a first agitator rotation axis extending in the first direction. The supply roller is positioned between the first agitator and the developing roller. The supply roller is rotatable about a supply roller rotation axis extending in the first direction. The second agitator is positioned between the supply roller and the first agitator. The second agitator is rotatable about a second agitator rotation axis extending in the first direction. A rotation locus of the second agitator is positioned outside of a rotation locus of the first agitator.Type: GrantFiled: January 19, 2021Date of Patent: October 12, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Kazuaki Ooka, Junichi Hashimoto, Shota Iriyama, Keigo Nakajima, Kengo Yada
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Publication number: 20210311414Abstract: An image forming apparatus including a housing, a toner cartridge, and a drum unit. The drum unit is movable through the opening between an accommodated position where the drum unit is positioned in the housing and a pulled-out position where the drum unit is pulled out of the housing. The drum unit includes a photosensitive drum and a developing unit. The photosensitive drum is rotatable about a first axis extending in a second direction. The developing unit includes a magnetic roller, a developer container, a first auger and a second auger. The magnetic roller is positioned between the toner cartridge and the photosensitive drum. The magnetic roller faces a surface of the photosensitive drum. The developer container is formed with an inlet allowing the toner to be replenished from the toner cartridge. The first auger is positioned in the developer container. The second auger is positioned in the developer container.Type: ApplicationFiled: March 26, 2021Publication date: October 7, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Junichi HASHIMOTO, Yuwen WANG, Takuya AMAIKE, Soun KANADA, Kazuma HINOUE
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Publication number: 20210311433Abstract: A drum unit includes a photosensitive drum, a developing unit, a toner cartridge, a connector and a relay board. The photosensitive drum is rotatable about a first axis extending in an axial direction. The developing unit includes a magnetic roller, a developer container, a conveyer member and a toner sensor. The developer container accommodate therein carrier, and has an inlet. The conveyer member is positioned in the developer container, and configured to convey the toner and the carrier from the inlet toward the magnetic roller. The toner cartridge accommodate therein toner and is attachable to the developer container to replenish the toner in the developer container through the inlet. The connector is electrically connected to the image forming apparatus. The relay board electrically connects the toner sensor to the connector. The relay board is configured to transmit a detection signal from the toner sensor to the image forming apparatus.Type: ApplicationFiled: March 25, 2021Publication date: October 7, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuwen WANG, Takuya AMAIKE, Junichi HASHIMOTO
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Publication number: 20210296137Abstract: A film processing method includes forming a target film, the target film having an upper surface. The method includes forming a carbon film on the upper surface of the target film. The method includes performing a first etching to format least one recess in the target film, with the carbon film serving as a mask. The method includes performing a second etching, by directing an ion beam through the at least one recess, to increase a depth of the at least one recess.Type: ApplicationFiled: August 28, 2020Publication date: September 23, 2021Applicant: Kioxia CorporationInventors: Junichi HASHIMOTO, Mitsuhiro OMURA, Toshiyuki SASAKI
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Patent number: 11126139Abstract: A developing cartridge includes: a casing; a developing roller; a shaft extending in a first direction; a first inclined surface; a second inclined surface; an elastic member; and a first protrusion. The shaft is movable in the first direction relative to the casing and the developing roller, and is movable in the second direction together with the same. The first inclined surface is positioned at one end portion of the shaft, while the second inclined surface is positioned at another end portion of the shaft. The first and second inclined surfaces are inclined relative to the first direction. The first protrusion is movable in the first direction together with the second inclined surface. The shaft is movable from a first position to a second position when the second inclined surface receives a pressing force directed in a direction from the another end portion to the one end portion.Type: GrantFiled: June 15, 2020Date of Patent: September 21, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuwen Wang, Junichi Hashimoto
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Publication number: 20210287903Abstract: A method for manufacturing a semiconductor device includes: forming a first film on a substrate; forming a second film containing at least carbon on the first film; forming a hole in the second film; and forming a recess, which communicates with the hole, in the first film by etching using the second film as a mask. In this method, the second film includes a first layer formed on the first film, and a second layer formed on the first layer. The first layer having a higher oxygen concentration than the second layer.Type: ApplicationFiled: August 27, 2020Publication date: September 16, 2021Applicant: Kioxia CorporationInventors: Takehiro KONDOH, Junichi HASHIMOTO, Soichi YAMAZAKI, Yuya MATSUBARA
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Patent number: 11099516Abstract: A drawer includes: a photosensitive drum rotatable about a drum axis extending in an axial direction; and a frame to which a developing cartridge including a developing roller is attachable. The developing cartridge is attachable to the frame in a state where an outer circumferential surface of the developing roller faces an outer circumferential surface of the photosensitive drum. The frame is configured to move the developing roller in a separation direction in which the outer circumferential surface of the developing roller moves away from the outer circumferential surface of the photosensitive drum. The frame includes a first guide roller for guiding the developing cartridge in the axial direction. The first guide roller is configured to move the developing cartridge in the separation direction relative to the frame in response to the movement in the axial direction of the developing cartridge relative to the frame.Type: GrantFiled: June 15, 2020Date of Patent: August 24, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuwen Wang, Junichi Hashimoto
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Publication number: 20210255567Abstract: A developing cartridge includes a casing, a developing roller, a supply roller, a first agitator and a second agitator. The casing is configured to accommodate toner therein. The supply roller is configured to supply the toner to the developing roller. The first agitator is configured to agitate the toner in the casing. The second agitator is configured to agitate the toner in the casing. The second agitator is positioned between the first agitator and the supply roller. The second agitator includes a blade having a tip end configured to contact a peripheral surface of the supply roller.Type: ApplicationFiled: January 28, 2021Publication date: August 19, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hotaka KAKUTANI, Kazuaki OOKA, Kengo YADA, Ayaka KOMORI, Shota IRIYAMA, Keigo NAKAJIMA, Junichi HASHIMOTO
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Publication number: 20210208532Abstract: A developing cartridge includes: a casing; a developing roller; a shaft; and a cam. The casing is configured to accommodate developer therein. The developing roller is rotatable about a first axis extending in an axial direction. The shaft extends along a second axis extending in the axial direction. The shaft is movable along the second axis. The cam is movable along the second axis in response to axial movement of the shaft. The cam has a cam surface non-parallel with the second axis.Type: ApplicationFiled: March 18, 2021Publication date: July 8, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuwen WANG, Junichi HASHIMOTO, Isao KISHI, Kazuaki OOKA
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Publication number: 20210165342Abstract: A developing roller is located nearer a first end than a second end in a first direction. A first boss extends in a second direction and is movable together with a housing. The first boss bears the weight of a developer cartridge when the first boss is supported by a support surface of a first side plate of a drum unit, and is located away from the developing roller in the first direction and the third direction. A first pressure receiving surface is located farther away from the developing roller than the first boss in the third direction. The pressure receiving member receives a pressing force in the third direction from a pressing member of the first side plate of the drum unit. The first boss is located away from the developing roller in the first direction by a first distance. The first pressure receiving surface is located away from the developing roller in the first direction by the first distance or by a second distance smaller than the first distance.Type: ApplicationFiled: December 3, 2020Publication date: June 3, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuwen WANG, Kazuaki OOKA, Isao KISHI, Junichi HASHIMOTO
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Publication number: 20210165274Abstract: A liquid crystal display panel includes pixels including a reflective region for display in a reflection mode and a transmissive region for display in a transmission mode. The liquid crystal display panel includes a liquid crystal layer including a nematic liquid crystal material having negative dielectric anisotropy and a chiral agent, a pixel electrode including a reflective conductive layer and a transparent conductive layer, a counter electrode, a light diffusing structure provided in common to the reflective region and the transmissive region, and a first vertical alignment film provided between the pixel electrode and the liquid crystal layer, and a second vertical alignment film provided between the counter electrode and the liquid crystal layer.Type: ApplicationFiled: November 26, 2020Publication date: June 3, 2021Inventors: TAKAHIRO SASAKI, HIROYUKI HAKOI, TAKASHI SATOH, JUNICHI HASHIMOTO, MING NI
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Publication number: 20210165361Abstract: A photosensitive drum is rotatable about a drum axis extending in a first direction. A frame includes a first side plate located at first end in the first direction and a second side plate spaced from the first side plate in the first direction. The frame rotatably supports the photosensitive drum between the first side plate and the second side plate in the first direction. The frame holds a developer cartridge. A lock lever is pivotable about a pivot axis extending in a second direction intersecting with the first direction. The lock lever is movable between a lock position at which the developer cartridge is locked on the frame and a release position at which the developer cartridge is unlocked from the frame.Type: ApplicationFiled: February 12, 2021Publication date: June 3, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuwen WANG, Junichi HASHIMOTO, Isao KISHI, Kazuaki OOKA