Patents by Inventor Yuji Nakayashiki
Yuji Nakayashiki 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: 11966185Abstract: An image forming apparatus includes an image forming portion including a photosensitive member and a developing portion, a sheet accommodating portion, a sheet feeding portion, and a first frame. The first frame includes an upper space supporting the image forming portion, and a lower space under the upper space. A second frame is mountable to a lower portion of said first frame. The accommodating portion and the feeding portion are replaceable with a supply container containing toner to be supplied to a developing portion of the image forming portion, in which the second frame supports the accommodating portion and the feeding portion.Type: GrantFiled: September 22, 2022Date of Patent: April 23, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Yasuhiko Fuse, Yuji Nakayashiki
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Patent number: 11703792Abstract: An overturning prevention device includes a holding member disposed at a bottom surface portion of an apparatus, and an overturning prevention member configured to be held by the holding member. The apparatus includes a wheel unit including a wheel, a fitting portion, and a support shaft. The holding member is disposed at a position nearer to a center of the bottom surface portion than the support shaft when viewed from above. The overturning prevention member includes, a projecting portion configured to project outside the bottom surface portion, and a held portion configured to be held by the holding member, the projecting portion and the held portion being connected with each other. The overturning prevention member is configured to be attached to and detached from the holding member by being moved in an attaching direction in which the held portion and the projecting portion are connected.Type: GrantFiled: February 8, 2022Date of Patent: July 18, 2023Assignee: Canon Kabushiki KaishaInventor: Yuji Nakayashiki
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Publication number: 20230017371Abstract: An image forming apparatus includes an image forming portion including a photosensitive member and a developing portion, a sheet accommodating portion, a sheet feeding portion, and a first frame. The first frame includes an upper space supporting the image forming portion, and a lower space under the upper space. A second frame is mountable to a lower portion of said first frame. The accommodating portion and the feeding portion are replaceable with a supply container containing toner to be supplied to a developing portion of the image forming portion, in which the second frame supports the accommodating portion and the feeding portion.Type: ApplicationFiled: September 22, 2022Publication date: January 19, 2023Inventors: Yasuhiko Fuse, Yuji Nakayashiki
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Patent number: 11474469Abstract: An image forming apparatus includes an image forming portion including a photosensitive member and a developing portion configured to develop, with toner, an electrostatic latent image formed on the photosensitive member, the image forming portion being configured to form an image on the sheet, a first frame including an upper space supporting the image forming portion and a lower space under the upper space, an accommodating portion configured to accommodate the sheet, a feeding portion configured to feed the sheet accommodated in the accommodating portion, and a supply container configured to contain the toner to be supplied to the developing portion of the image forming portion. The accommodating portion and the feeding portion are provided in the lower space and, alternatively, the supply container is provided in the lower space together with a second frame which is mountable to a lower portion of the first frame.Type: GrantFiled: March 27, 2020Date of Patent: October 18, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Yasuhiko Fuse, Yuji Nakayashiki
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Publication number: 20220163917Abstract: An overturning prevention device includes a holding member disposed at a bottom surface portion of an apparatus, and an overturning prevention member configured to be held by the holding member. The apparatus includes a wheel unit including a wheel, a fitting portion, and a support shaft. The holding member is disposed at a position nearer to a center of the bottom surface portion than the support shaft when viewed from above. The overturning prevention member includes, a projecting portion configured to project outside the bottom surface portion, and a held portion configured to be held by the holding member, the projecting portion and the held portion being connected with each other. The overturning prevention member is configured to be attached to and detached from the holding member by being moved in an attaching direction in which the held portion and the projecting portion are connected.Type: ApplicationFiled: February 8, 2022Publication date: May 26, 2022Inventor: Yuji NAKAYASHIKI
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Patent number: 11305959Abstract: A sheet conveyance apparatus includes a body portion and a guide unit having a first and second guides. Where an openable portion in the body portion is closed, a first conveyance path is formed between the first guide and a third guide in the openable portion and a second conveyance path is formed between the second guide and the body portion, and a sheet is conveyed from the first conveyance path to the second conveyance path by passing through a gap between the guide unit and a downstream end of the third guide. In a state where the openable portion is open, the guide unit moves with respect to the openable portion so the second guide faces the third guide and the gap between the guide unit and the downstream end of the third guide becomes larger than the gap in a state where the openable portion is closed.Type: GrantFiled: December 9, 2019Date of Patent: April 19, 2022Assignee: CANON KABUSHIKI KAISHAInventor: Yuji Nakayashiki
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Patent number: 11281150Abstract: An overturning prevention device includes a holding member disposed at a bottom surface portion of an apparatus, and an overturning prevention member configured to be held by the holding member. The apparatus includes a wheel unit including a wheel, a fitting portion, and a support shaft. The holding member is disposed at a position nearer to a center of the bottom surface portion than the support shaft when viewed from above. The overturning prevention member includes, a projecting portion configured to project outside the bottom surface portion, and a held portion configured to be held by the holding member, the projecting portion and the held portion being connected with each other. The overturning prevention member is configured to be attached to and detached from the holding member by being moved in an attaching direction in which the held portion and the projecting portion are connected.Type: GrantFiled: April 16, 2021Date of Patent: March 22, 2022Assignee: Canon Kabushiki KaishaInventor: Yuji Nakayashiki
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Publication number: 20210349419Abstract: An overturning prevention device includes a holding member disposed at a bottom surface portion of an apparatus, and an overturning prevention member configured to be held by the holding member. The apparatus includes a wheel unit including a wheel, a fitting portion, and a support shaft. The holding member is disposed at a position nearer to a center of the bottom surface portion than the support shaft when viewed from above. The overturning prevention member includes, a projecting portion configured to project outside the bottom surface portion, and a held portion configured to be held by the holding member, the projecting portion and the held portion being connected with each other. The overturning prevention member is configured to be attached to and detached from the holding member by being moved in an attaching direction in which the held portion and the projecting portion are connected.Type: ApplicationFiled: April 16, 2021Publication date: November 11, 2021Inventor: Yuji NAKAYASHIKI
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Patent number: 10962918Abstract: An image forming apparatus includes a photosensitive unit provided with a discharge opening, a pair of frame members, a developer receiving portion connected to the discharge opening, and a developer feeding portion connected to the developer receiving portion. The developer receiving portion is provided inside a space sandwiched between the frame members. The developer feeding portion is provided outside the space.Type: GrantFiled: June 8, 2020Date of Patent: March 30, 2021Assignee: CANON KABUSHIKI KAISHAInventor: Yuji Nakayashiki
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Publication number: 20200409289Abstract: An image forming apparatus includes a photosensitive unit provided with a discharge opening, a pair of frame members, a developer receiving portion connected to the discharge opening, and a developer feeding portion connected to the developer receiving portion. The developer receiving portion is provided inside a space sandwiched between the frame members. The developer feeding portion is provided outside the space.Type: ApplicationFiled: June 8, 2020Publication date: December 31, 2020Inventor: Yuji Nakayashiki
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Publication number: 20200326651Abstract: An image forming apparatus includes an image forming portion including a photosensitive member and a developing portion, a sheet accommodating portion, a sheet feeding portion, and a first frame. The first frame includes an upper space supporting the image forming portion, and a lower space under the upper space. A second frame is mountable to a lower portion of said first frame. The accommodating portion and the feeding portion are replaceable with a supply container containing toner to be supplied to a developing portion of the image forming portion, in which the second frame supports the accommodating portion and the feeding portion.Type: ApplicationFiled: March 27, 2020Publication date: October 15, 2020Inventors: Yasuhiko Fuse, Yuji Nakayashiki
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Publication number: 20200109021Abstract: A sheet conveyance apparatus includes a body portion, an openable portion supported by the body portion and configured to be opened and closed with respect to the body portion, a first movable guide supported by the openable portion and movable to a first position at which a first conveyance path through which a sheet is conveyed is formed between the first movable guide and the openable portion and a second position at which the first path is opened, a second movable guide movably supported by the first movable guide, and an abutment portion provided in the body portion. In a state where the openable portion is closed, the second movable guide abut with the abutment portion and is held on a position to form a second conveyance path through which the sheet is conveyed.Type: ApplicationFiled: December 9, 2019Publication date: April 9, 2020Inventor: Yuji Nakayashiki
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Patent number: 10532905Abstract: A sheet conveyance apparatus includes a body portion, and an openable unit including an openable portion supported by the body portion, a first movable guide to guide a sheet, a supporting portion to movably support the first movable guide between a first position, at which a first conveyance path through which the sheet is conveyed is formed between the first movable guide and the openable portion, and a second position, at which the first conveyance path is opened, the supporting portion being moved away from the body portion along with an opening operation of the openable portion, and a second movable guide movably supported by the first movable guide. An abutment portion abuts with the second movable guide in a state where the openable portion is closed, such that the second movable guide is held on a position to form a second conveyance path through which the sheet is conveyed.Type: GrantFiled: November 1, 2017Date of Patent: January 14, 2020Assignee: CANON KABUSHIKI KAISHAInventor: Yuji Nakayashiki
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Patent number: 10234815Abstract: A contact point end portion of a second ring connected to a first ring portion on a power reception portion side protrudes further in the direction of a power reception portion than a contact point end portion of the first ring connected to a spring portion on a power reception portion side.Type: GrantFiled: February 20, 2018Date of Patent: March 19, 2019Assignee: Canon Kabushiki KaishaInventor: Yuji Nakayashiki
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Patent number: 10189644Abstract: Provided is a driving force transmission device including: an actuator (22) that, in a case where one of a first annular gear (11), a second annular gear (14), and a carrier (16) is an input member, another one is an output member, and the remaining one is a rotational member, causes one of the input member and the output member to rotate integrally with the rotational member. When driving force is inputted from the drive source to the input member and input member is rotated unidirectionally, the rotation direction of the output member in the case where one of the input member and the output member rotates integrally with the rotational member is reversed with respect to that in a case where one of the input member and the output member does not rotate integrally with the rotational member.Type: GrantFiled: August 22, 2017Date of Patent: January 29, 2019Assignee: Canon Kabushiki KaishaInventors: Takuji Uesugi, Yuji Nakayashiki, Taku Fukita, Akira Kuroda, Masao Umezawa, Yoshihiro Matsuo
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Publication number: 20180246461Abstract: A contact point end portion of a second ring connected to a first ring portion on a power reception portion side protrudes further in the direction of a power reception portion than a contact point end portion of the first ring connected to a spring portion on a power reception portion side.Type: ApplicationFiled: February 20, 2018Publication date: August 30, 2018Inventor: Yuji Nakayashiki
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Publication number: 20180127228Abstract: A sheet conveyance apparatus includes a body portion, an openable portion supported by the body portion and configured to be opened and closed with respect to the body portion, a first movable guide supported by the openable portion and movable to a first position at which a first conveyance path through which a sheet is conveyed is formed between the first movable guide and the openable portion and a second position at which the first path is opened, a second movable guide movably supported by the first movable guide, and an abutment portion provided in the body portion. In a state where the openable portion is closed, the second movable guide abut with the abutment portion and is held on a position to form a second conveyance path through which the sheet is conveyed.Type: ApplicationFiled: November 1, 2017Publication date: May 10, 2018Inventor: Yuji Nakayashiki
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Publication number: 20170369249Abstract: Provided is a driving force transmission device including: an actuator (22) that, in a case where one of a first annular gear (11), a second annular gear (14), and a carrier (16) is an input member, another one is an output member, and the remaining one is a rotational member, causes one of the input member and the output member to rotate integrally with the rotational member. When driving force is inputted from the drive source to the input member and input member is rotated unidirectionally, the rotation direction of the output member in the case where one of the input member and the output member rotates integrally with the rotational member is reversed with respect to that in a case where one of the input member and the output member does not rotate integrally with the rotational member.Type: ApplicationFiled: August 22, 2017Publication date: December 28, 2017Inventors: Takuji Uesugi, Yuji Nakayashiki, Taku Fukita, Akira Kuroda, Masao Umezawa, Yoshihiro Matsuo
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Patent number: 9783365Abstract: Provided is a driving force transmission device including: an actuator (22) that, in a case where one of a first annular gear (11), a second annular gear (14), and a carrier (16) is an input member, another one is an output member, and the remaining one is a rotational member, causes one of the input member and the output member to rotate integrally with the rotational member. When driving force is inputted from the drive source to the input member and input member is rotated unidirectionally, the rotation direction of the output member in the case where one of the input member and the output member rotates integrally with the rotational member is reversed with respect to that in a case where one of the input member and the output member does not rotate integrally with the rotational member.Type: GrantFiled: September 26, 2014Date of Patent: October 10, 2017Assignee: Canon Kabushiki KaishaInventors: Takuji Uesugi, Yuji Nakayashiki, Taku Fukita, Akira Kuroda, Masao Umezawa, Yoshihiro Matsuo
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Publication number: 20150090563Abstract: Provided is a driving force transmission device including: an actuator (22) that, in a case where one of a first annular gear (11), a second annular gear (14), and a carrier (16) is an input member, another one is an output member, and the remaining one is a rotational member, causes one of the input member and the output member to rotate integrally with the rotational member. When driving force is inputted from the drive source to the input member and input member is rotated unidirectionally, the rotation direction of the output member in the case where one of the input member and the output member rotates integrally with the rotational member is reversed with respect to that in a case where one of the input member and the output member does not rotate integrally with the rotational member.Type: ApplicationFiled: September 26, 2014Publication date: April 2, 2015Inventors: Takuji Uesugi, Yuji Nakayashiki, Taku Fukita, Akira Kuroda, Masao Umezawa, Yoshihiro Matsuo