Patents by Inventor Tsubasa KIRIYAMA
Tsubasa KIRIYAMA 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: 11947307Abstract: A drum cartridge includes: a photosensitive drum; a drum frame; a drum coupling; and an electrical contact surface. The photosensitive drum is rotatable about an axis extending in a first direction. The drum frame has one end portion in a second direction at which the photosensitive drum is positioned. The drum coupling is rotatable together with the photosensitive drum. The drum coupling is positioned at an outer surface of one side in the first direction of the drum frame. The electrical contact surface is positioned closer to another side in the second direction of the drum frame than the drum coupling is to the another side in the second direction of the drum frame.Type: GrantFiled: August 2, 2022Date of Patent: April 2, 2024Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hiroki Mori, Atsushi Fukaya, Tsubasa Kiriyama, Nao Itabashi
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Publication number: 20230176514Abstract: An image forming apparatus includes a main housing, a drawer, and a cartridge. The drawer is movable between an inside position inside the main housing and an outside position outside the main housing. The cartridge is installable into and removable from the drawer. The cartridge includes a photosensitive drum configured to rotate about a drum axis. The drawer comprises a lock member movable between a lock position in which the drawer is locked to the main housing, and an unlock position in which the drawer is unlocked from the main housing. The cartridge installed in the drawer is rotatable about the drum axis between a first position and a second position. The lock member is positioned in the lock position when the cartridge is positioned in the first position, and positioned in the unlock position when the cartridge is positioned in the second position.Type: ApplicationFiled: January 12, 2023Publication date: June 8, 2023Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Nao Itabashi, Misato Osuka, Keita Shimizu, Go Iwasa, Kazutoshi Nakamura, Ryosuke Hayashi, Tsubasa Kiriyama, Naoya Kamimura, Yuwen Wang, Masaaki Furukawa, Kazuma Hinoue, Kenta Tosuji
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Publication number: 20220365478Abstract: A drum cartridge includes: a photosensitive drum; a drum frame; a drum coupling; and an electrical contact surface. The photosensitive drum is rotatable about an axis extending in a first direction. The drum frame has one end portion in a second direction at which the photosensitive drum is positioned. The drum coupling is rotatable together with the photosensitive drum. The drum coupling is positioned at an outer surface of one side in the first direction of the drum frame. The electrical contact surface is positioned closer to another side in the second direction of the drum frame than the drum coupling is to the another side in the second direction of the drum frame.Type: ApplicationFiled: August 2, 2022Publication date: November 17, 2022Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hiroki MORI, Atsushi FUKAYA, Tsubasa KIRIYAMA, Nao ITABASHI
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Patent number: 11454899Abstract: A toner cartridge includes a casing, a developing roller, a holder, a toner memory, an electrical contact and a wiring. The holder is positioned at an outer surface of one side in a first direction of the casing. The electric contact surface is positioned at an outer surface of one side in a second direction of the holder. The second direction crosses the electric contact surface. The electrical contact is positioned on an outer surface of another side in the second direction of the holder. The wiring electrically connects the electrical contact and the electric contact surface. The electric contact surface includes a first electric contact surface and a second electric contact surface. The first electric contact surface electrically is connected to the electrical contact through the wiring. The second electric contact surface electrically is connected to the toner memory.Type: GrantFiled: August 4, 2021Date of Patent: September 27, 2022Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tsubasa Kiriyama, Hiroki Mori, Nao Itabashi, Atsushi Fukaya
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Patent number: 11442398Abstract: A drum cartridge includes: a photosensitive drum; a drum frame; a drum coupling; and an electrical contact surface. The photosensitive drum is rotatable about an axis extending in a first direction. The drum frame has one end portion in a second direction at which the photosensitive drum is positioned. The drum coupling is rotatable together with the photosensitive drum. The drum coupling is positioned at an outer surface of one side in the first direction of the drum frame. The electrical contact surface is positioned closer to another side in the second direction of the drum frame than the drum coupling is to the another side in the second direction of the drum frame.Type: GrantFiled: June 15, 2021Date of Patent: September 13, 2022Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hiroki Mori, Atsushi Fukaya, Tsubasa Kiriyama, Nao Itabashi
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Patent number: 11226580Abstract: A photosensitive drum rotates about a first axis extending in a first direction. A photosensitive drum is located at one end portion of a housing in a second direction. A cleaning roller cleans a surface of the photosensitive drum. The cleaning roller rotates about a second axis extending in the first direction. A cleaning electrode is electrically connected to the cleaning roller. The cleaning electrode is located at an outer surface of the housing in the first direction. The cleaning electrode is located at a tip end of the one end portion of the housing in the second direction. The cleaning electrode includes a contact surface and a guide surface. The contact surface contacts an electrical contact to which a voltage is supplied. The contact surface is perpendicular to the first direction. The guide surface guides the electrical contact to the contact surface when the drum cartridge is mounted.Type: GrantFiled: February 9, 2021Date of Patent: January 18, 2022Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Atsushi Fukaya, Hiroki Mori, Nao Itabashi, Tsubasa Kiriyama
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Publication number: 20210364946Abstract: A toner cartridge includes a casing, a developing roller, a holder, a toner memory, an electrical contact and a wiring. The holder is positioned at an outer surface of one side in a first direction of the casing. The electric contact surface is positioned at an outer surface of one side in a second direction of the holder. The second direction crosses the electric contact surface. The electrical contact is positioned on an outer surface of another side in the second direction of the holder. The wiring electrically connects the electrical contact and the electric contact surface. The electric contact surface includes a first electric contact surface and a second electric contact surface. The first electric contact surface electrically is connected to the electrical contact through the wiring. The second electric contact surface electrically is connected to the toner memory.Type: ApplicationFiled: August 4, 2021Publication date: November 25, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tsubasa KIRIYAMA, Hiroki MORI, Nao ITABASHI, Atsushi FUKAYA
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Publication number: 20210311430Abstract: A drum cartridge includes: a photosensitive drum; a drum frame; a drum coupling; and an electrical contact surface. The photosensitive drum is rotatable about an axis extending in a first direction. The drum frame has one end portion in a second direction at which the photosensitive drum is positioned. The drum coupling is rotatable together with the photosensitive drum. The drum coupling is positioned at an outer surface of one side in the first direction of the drum frame. The electrical contact surface is positioned closer to another side in the second direction of the drum frame than the drum coupling is to the another side in the second direction of the drum frame.Type: ApplicationFiled: June 15, 2021Publication date: October 7, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hiroki MORI, Atsushi FUKAYA, Tsubasa KIRIYAMA, Nao ITABASHI
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Patent number: 11099501Abstract: A toner cartridge includes a casing, a developing roller, a holder, a toner memory, an electrical contact and a wiring. The holder is positioned at an outer surface of one side in a first direction of the casing. The electric contact surface is positioned at an outer surface of one side in a second direction of the holder. The second direction crosses the electric contact surface. The electrical contact is positioned on an outer surface of another side in the second direction of the holder. The wiring electrically connects the electrical contact and the electric contact surface. The electric contact surface includes a first electric contact surface and a second electric contact surface. The first electric contact surface electrically is connected to the electrical contact through the wiring. The second electric contact surface electrically is connected to the toner memory.Type: GrantFiled: August 27, 2020Date of Patent: August 24, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tsubasa Kiriyama, Hiroki Mori, Nao Itabashi, Atsushi Fukaya
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Publication number: 20210255573Abstract: A photosensitive drum rotates about a first axis extending in a first direction. A photosensitive drum is located at one end portion of a housing in a second direction. A cleaning roller cleans a surface of the photosensitive drum. The cleaning roller rotates about a second axis extending in the first direction. A cleaning electrode is electrically connected to the cleaning roller. The cleaning electrode is located at an outer surface of the housing in the first direction. The cleaning electrode is located at a tip end of the one end portion of the housing in the second direction. The cleaning electrode includes a contact surface and a guide surface. The contact surface contacts an electrical contact to which a voltage is supplied. The contact surface is perpendicular to the first direction. The guide surface guides the electrical contact to the contact surface when the drum cartridge is mounted.Type: ApplicationFiled: February 9, 2021Publication date: August 19, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Atsushi FUKAYA, Hiroki MORI, Nao ITABASHI, Tsubasa KIRIYAMA
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Patent number: 11054787Abstract: A drum cartridge includes: a photosensitive drum; a drum frame; a drum coupling; and an electrical contact surface. The photosensitive drum is rotatable about an axis extending in a first direction. The drum frame has one end portion in a second direction at which the photosensitive drum is positioned. The drum coupling is rotatable together with the photosensitive drum. The drum coupling is positioned at an outer surface of one side in the first direction of the drum frame. The electrical contact surface is positioned closer to another side in the second direction of the drum frame than the drum coupling is to the another side in the second direction of the drum frame.Type: GrantFiled: August 26, 2020Date of Patent: July 6, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hiroki Mori, Atsushi Fukaya, Tsubasa Kiriyama, Nao Itabashi
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Publication number: 20210063911Abstract: A toner cartridge includes a casing, a developing roller, a holder, a toner memory, an electrical contact and a wiring. The holder is positioned at an outer surface of one side in a first direction of the casing. The electric contact surface is positioned at an outer surface of one side in a second direction of the holder. The second direction crosses the electric contact surface. The electrical contact is positioned on an outer surface of another side in the second direction of the holder. The wiring electrically connects the electrical contact and the electric contact surface. The electric contact surface includes a first electric contact surface and a second electric contact surface. The first electric contact surface electrically is connected to the electrical contact through the wiring. The second electric contact surface electrically is connected to the toner memory.Type: ApplicationFiled: August 27, 2020Publication date: March 4, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tsubasa KIRIYAMA, Hiroki MORI, Nao ITABASHI, Atsushi FUKAYA
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Publication number: 20210063952Abstract: A drum cartridge includes: a photosensitive drum; a drum frame; a drum coupling; and an electrical contact surface. The photosensitive drum is rotatable about an axis extending in a first direction. The drum frame has one end portion in a second direction at which the photosensitive drum is positioned. The drum coupling is rotatable together with the photosensitive drum. The drum coupling is positioned at an outer surface of one side in the first direction of the drum frame. The electrical contact surface is positioned closer to another side in the second direction of the drum frame than the drum coupling is to the another side in the second direction of the drum frame.Type: ApplicationFiled: August 26, 2020Publication date: March 4, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hiroki MORI, Atsushi FUKAYA, Tsubasa KIRIYAMA, Nao ITABASHI
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Patent number: 10520879Abstract: A developing cartridge includes a developing roller rotatable about a first axis extending in an axial direction of the developing roller, a casing having an outer surface positioned at one end of the casing in the axial direction, an electrode electrically connected to the developing roller and positioned at the outer surface, the electrode extending in the axial direction, a gear, a protrusion, and an adapter having an electric conductivity and detachably attachable to the electrode, the adapter being electrically connected to the electrode in a state where the adapter is attached to the electrode. A total length of the electrode and the adapter in the axial direction in the state where the adapter is attached to the electrode is greater than a length in the axial direction of the electrode in a state where the adapter is detached from the electrode.Type: GrantFiled: January 16, 2019Date of Patent: December 31, 2019Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventor: Tsubasa Kiriyama
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Publication number: 20190302679Abstract: A developing cartridge includes a developing roller rotatable about a first axis extending in an axial direction of the developing roller, a casing having an outer surface positioned at one end of the casing in the axial direction, an electrode electrically connected to the developing roller and positioned at the outer surface, the electrode extending in the axial direction, a gear, a protrusion, and an adapter having an electric conductivity and detachably attachable to the electrode, the adapter being electrically connected to the electrode in a state where the adapter is attached to the electrode. A total length of the electrode and the adapter in the axial direction in the state where the adapter is attached to the electrode is greater than a length in the axial direction of the electrode in a state where the adapter is detached from the electrode.Type: ApplicationFiled: January 16, 2019Publication date: October 3, 2019Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Tsubasa KIRIYAMA