Patents by Inventor Atsushi Takasaka
Atsushi Takasaka 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: 20230372666Abstract: A medical device 1 includes a main body driving unit (300) including a plurality of driving sources (M11 to M33), a base unit (200) including a coupling device (21) connected to the main body driving unit, a bendable unit (100) configured to be detachably attached to the base unit, and an operation unit (400) configured to be movable between a fixed position and a detachment position. The base unit includes a plurality of coupling units (21c11 to 21c33). The bendable unit includes a plurality of linear members (W11 to W33). A state where each of the plurality of linear members is fixed by each of the plurality of coupling units and a state where each of the plurality of linear members is unfixed from each of the plurality of coupling units are switched in an interlocked manner with movement of the operation unit.Type: ApplicationFiled: July 25, 2023Publication date: November 23, 2023Inventors: RYO IWASAWA, ATSUSHI TAKASAKA, YUSUKE NIIKAWA, TOMIO NOGUCHI, ISAO MATSUOKA
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Publication number: 20220283047Abstract: A force sensor includes a support member, a force receiving member to be displaced with respect to the support member by an action of an external force, and a strain generating member having a scale holding portion and an elastic connection portion connecting the support member and the force receiving member. The force sensor further includes scales each serving as a detection target object and disposed on the elastic connection portion and the scale holding portion, and displacement detection elements mounted on a sensor substrate of the support member to face the scales in a one-to-one correspondence to detect movements of the scales. The force receiving member includes metal, and the strain generating member includes resin.Type: ApplicationFiled: March 24, 2022Publication date: September 8, 2022Inventors: Naoya Ogawa, Atsushi Takasaka
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Patent number: 11209772Abstract: A cartridge includes a developing roller and a coupling member for receiving a rotational force for rotating the developing roller. The cartridge also includes a frame having a bearing configured to rotatably support the cylinder and a regulating wall capable of regulating movement of the coupling member by contacting the coupling member. A spring presses the coupling member to contact the regulating wall, and the bearing encompasses the regulating wall as seen along a rotational axis of the cylinder.Type: GrantFiled: December 10, 2020Date of Patent: December 28, 2021Assignee: Canon Kabushiki KaishaInventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
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Publication number: 20210165359Abstract: A cartridge includes a developing roller and a coupling member for receiving a rotational force for rotating the developing roller. The cartridge also includes a frame having a bearing configured to rotatably support the cylinder and a regulating wall capable of regulating movement of the coupling member by contacting the coupling member. A spring presses the coupling member to contact the regulating wall, and the bearing encompasses the regulating wall as seen along a rotational axis of the cylinder.Type: ApplicationFiled: December 10, 2020Publication date: June 3, 2021Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
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Patent number: 10901360Abstract: A cartridge includes a coupling member for receiving a rotational force for rotating a developing roller. The cartridge also includes a cylinder including an accommodating portion accommodating at least a part of the coupling member, the cylinder being configured to transmit the rotational force from the coupling member to the developing roller. The cartridge further includes a frame including a bearing configured to rotatably support the cylinder and a regulating wall capable of regulating movement of the coupling member by contacting the coupling member. The bearing encompasses the regulating wall as seen along a rotational axis of the cylinder.Type: GrantFiled: January 6, 2020Date of Patent: January 26, 2021Assignee: Canon Kabushiki KaishaInventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
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Publication number: 20200142349Abstract: A cartridge includes a coupling member for receiving a rotational force for rotating a developing roller. The cartridge also includes a cylinder including an accommodating portion accommodating at least a part of the coupling member, the cylinder being configured to transmit the rotational force from the coupling member to the developing roller. The cartridge further includes a frame including a bearing configured to rotatably support the cylinder and a regulating wall capable of regulating movement of the coupling member by contacting the coupling member. The bearing encompasses the regulating wall as seen along a rotational axis of the cylinder.Type: ApplicationFiled: January 6, 2020Publication date: May 7, 2020Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
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Patent number: 10545450Abstract: A cartridge includes a rotatable member, a coupling member for receiving a rotational force for rotating the rotatable member, and a cylindrical member movably supporting one end portion of the coupling member. A first regulating portion is provided inside of the cylindrical member for preventing the end portion of the coupling member from disengaging in an axial direction of the cylindrical member, with the first regulating portion being capable of deformation to allow the one end portion of the coupling member to disengage in the axial direction of the cylindrical member. A second regulating portion is provided for regulating the deformation of the first regulating portion in a state in which the end portion of the coupling member is mounted to the inside of the cylindrical member.Type: GrantFiled: September 18, 2018Date of Patent: January 28, 2020Assignee: Canon Kabushiki KaishaInventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
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Publication number: 20190155204Abstract: A cartridge includes a rotatable member, a coupling member for receiving a rotational force for rotating the rotatable member, and a cylindrical member movably supporting one end portion of the coupling member. A first regulating portion is provided inside of the cylindrical member for preventing the end portion of the coupling member from disengaging in an axial direction of the cylindrical member, with the first regulating portion being capable of deformation to allow the one end portion of the coupling member to disengage in the axial direction of the cylindrical member. A second regulating portion is provided for regulating the deformation of the first regulating portion in a state in which the end portion of the coupling member is mounted to the inside of the cylindrical member.Type: ApplicationFiled: September 18, 2018Publication date: May 23, 2019Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
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Patent number: 10095179Abstract: An image forming apparatus comprises a cartridge that includes a developing roller and a coupling member for receiving a rotational force for rotating the developing roller. A cylindrical member movably supports one end portion of the coupling member inside of the cylindrical member. A cylindrical member side force receiving portion is provided inside the cylindrical member. A first regulating portion, provided inside of the cylindrical member, prevents one end portion of the coupling member from disengaging in an axial direction of the cylindrical member. A second regulating portion regulates deformations of the first regulating portion outward of the cylindrical member in the radial direction in a state in which one end portion of the coupling member is mounted to the inside of the cylindrical member. The apparatus also includes a driving motor and a driving shaft engageable with the coupling member of the cartridge.Type: GrantFiled: January 30, 2017Date of Patent: October 9, 2018Assignee: Canon Kabushiki KaishaInventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
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Patent number: 9946195Abstract: A developer container or a developing device including a sheet member having a plurality of holes and a plurality of protruded portions to be inserted into the holes.Type: GrantFiled: November 14, 2017Date of Patent: April 17, 2018Assignee: Canon Kabushiki KaishaInventors: Atsushi Takasaka, Tadashi Horikawa, Naoya Asanuma, Go Torii
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Publication number: 20180067421Abstract: A developer container or a developing device including a sheet member having a plurality of holes and a plurality of protruded portions to be inserted into the holes.Type: ApplicationFiled: November 14, 2017Publication date: March 8, 2018Inventors: Atsushi Takasaka, Tadashi Horikawa, Naoya Asanuma, Go Torii
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Patent number: 9846386Abstract: A developer container or a developing device including a sheet member having a plurality of holes and a plurality of protruded portions to be inserted into the holes.Type: GrantFiled: October 4, 2016Date of Patent: December 19, 2017Assignee: Canon Kabushiki KaishaInventors: Atsushi Takasaka, Tadashi Horikawa, Naoya Asanuma, Go Torii
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Publication number: 20170139349Abstract: An image forming apparatus comprises a cartridge that includes a developing roller and a coupling member for receiving a rotational force for rotating the developing roller. A cylindrical member movably supports one end portion of the coupling member inside of the cylindrical member. A cylindrical member side force receiving portion is provided inside the cylindrical member. A first regulating portion, provided inside of the cylindrical member, prevents one end portion of the coupling member from disengaging in an axial direction of the cylindrical member. A second regulating portion regulates deformations of the first regulating portion outward of the cylindrical member in the radial direction in a state in which one end portion of the coupling member is mounted to the inside of the cylindrical member. The apparatus also includes a driving motor and a driving shaft engageable with the coupling member of the cartridge.Type: ApplicationFiled: January 30, 2017Publication date: May 18, 2017Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
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Publication number: 20170102639Abstract: A developer container or a developing device including a sheet member having a plurality of holes and a plurality of protruded portions to be inserted into the holes.Type: ApplicationFiled: October 4, 2016Publication date: April 13, 2017Inventors: Atsushi Takasaka, Tadashi Horikawa, Naoya Asanuma, Go Torii
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Patent number: 9594343Abstract: An image forming apparatus comprises a cartridge that includes a developing roller and a coupling member for receiving a rotational force for rotating the developing roller. A cylindrical member movably supports one end portion of the coupling member inside of the cylindrical member. A cylindrical member side force receiving portion is provided inside the cylindrical member. A first regulating portion, provided inside of the cylindrical member, prevents one end portion of the coupling member from disengaging in an axial direction of the cylindrical member. A second regulating portion regulates deformations of the first regulating portion outward of the cylindrical member in the radial direction in a state in which one end portion of the coupling member is mounted to the inside of the cylindrical member. The apparatus also includes a driving motor and a driving shaft engageable with the coupling member of the cartridge.Type: GrantFiled: May 4, 2016Date of Patent: March 14, 2017Assignee: Canon Kabushiki KaishaInventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
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Patent number: 9477201Abstract: A cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes coupling member that is provided for receiving a rotational force for rotating a developing roller, with a cylindrical member movably supporting one end portion of the coupling member inside of the cylindrical member, and a cylindrical member side force receiving portion being provided inside the cylindrical member for receiving the rotational force received by the coupling member. The cartridge further includes a first regulating portion for preventing one end portion of the coupling member from disengaging in an axial direction of the cylindrical member; and a second regulating portion for regulating deformation of the first regulating portion in a state in which one end portion of the coupling member is mounted to an inside of the cylindrical member with deformation of the first regulating portion.Type: GrantFiled: June 21, 2013Date of Patent: October 25, 2016Assignee: Canon Kabushiki KaishaInventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
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Patent number: 9454124Abstract: An image forming apparatus includes an apparatus main body and a movable member configured to move with respect to the main body while supporting an image bearing member and a developer bearing member. The movable member is movable to a position located inside the main body, where the two bearing members is in an image formable state, and a position located outside the main body, where a cartridge including the developer bearing member is detachable from the movable member. The apparatus further includes an exposure device configured to expose the image bearing member via a light transmission member, and a cleaning member configured to clean a surface of the light transmission member opposed to the movable member. The cleaning member is provided on the movable member and is movable to a contact position for contacting the light transmission member and a noncontact position when the movable member moves.Type: GrantFiled: May 11, 2015Date of Patent: September 27, 2016Assignee: Canon Kabushiki KaishaInventors: Atsushi Takasaka, Noriyuki Komatsu, Osamu Anan, Tetsuya Numata
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Publication number: 20160246249Abstract: An image forming apparatus comprises a cartridge that includes a developing roller and a coupling member for receiving a rotational force for rotating the developing roller. A cylindrical member movably supports one end portion of the coupling member inside of the cylindrical member. A cylindrical member side force receiving portion is provided inside the cylindrical member. A first regulating portion, provided inside of the cylindrical member, prevents one end portion of the coupling member from disengaging in an axial direction of the cylindrical member. A second regulating portion regulates deformations of the first regulating portion outward of the cylindrical member in the radial direction in a state in which one end portion of the coupling member is mounted to the inside of the cylindrical member. The apparatus also includes a driving motor and a driving shaft engageable with the coupling member of the cartridge.Type: ApplicationFiled: May 4, 2016Publication date: August 25, 2016Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
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Patent number: 9389583Abstract: An image forming apparatus includes an apparatus main-body to and from which a process cartridge can be attached and detached. The process cartridge includes an image carrying member to carry an image, a charging member to charge the image carrying member, a cleaning member to clean the charging member by contacting it, and a force receiving unit to receive a force for moving the cleaning member in a longitudinal direction of the image carrying member. The apparatus main-body includes a slope portion which slopes in a direction in which the process cartridge is attached and contacts the force receiving unit to apply the force in a process where the process cartridge is attached to the apparatus main-body, and the slope portion applies the force to the force receiving unit to move the cleaning member from an inside to an outside of a region where an image can be formed.Type: GrantFiled: January 21, 2015Date of Patent: July 12, 2016Assignee: Canon Kabushiki KaishaInventors: Naoki Maeda, Atsushi Takasaka, Ryuta Murakami
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Patent number: 9348303Abstract: A cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes coupling member that is provided for receiving a rotational force for rotating a developing roller, with a cylindrical member movably supporting one end portion of the coupling member inside of the cylindrical member, and a cylindrical member side force receiving portion being provided inside the cylindrical member for receiving the rotational force received by the coupling member. The cartridge further includes a first regulating portion for preventing one end portion of the coupling member from disengaging in an axial direction of the cylindrical member; and a second regulating portion for regulating deformation of the first regulating portion in a state in which one end portion of the coupling member is mounted to an inside of the cylindrical member with deformation of the first regulating portion.Type: GrantFiled: June 21, 2013Date of Patent: May 24, 2016Assignee: Canon Kabushiki KaishaInventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka