Patents by Inventor Yusuke Niikawa
Yusuke Niikawa 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: 20190250550Abstract: A driving apparatus includes a drive output member configured to, when driving a member to be driven, receive a first force from the member to be driven in a direction in which the drive output member comes off a rotation shaft of a motor, and when driven by a drive transmission member, receive a second force from the drive transmission member in a direction opposite to that of the first force. The second force is equal to or greater than the first force.Type: ApplicationFiled: February 5, 2019Publication date: August 15, 2019Inventor: Yusuke Niikawa
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Patent number: 10203652Abstract: A cartridge mountable to a printer, said printer including a coupling guide contactable to a coupling of the cartridge to guide the coupling member. A case of the cartridge is provided with a hole for exposing a free end portion of the coupling to an outside of the cartridge, and a retracted portion provided in downstream of the hole with respect to the mounting direction of the cartridge. When the cartridge is mounted to a main assembly of the printer, the coupling guide enters the retracted portion from which the coupling member has retracted.Type: GrantFiled: September 7, 2017Date of Patent: February 12, 2019Assignee: Canon Kabushiki KaishaInventors: Shigemi Kamoshida, Takeshi Arimitsu, Isao Koishi, Yusuke Niikawa
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Publication number: 20180341214Abstract: A cartridge mountable to a printer, said printer including a coupling guide contactable to a coupling of the cartridge to guide the coupling member. A case of the cartridge is provided with a hole for exposing a free end portion of the coupling to an outside of the cartridge, and a retracted portion provided in downstream of the hole with respect to the mounting direction of the cartridge. When the cartridge is mounted to a main assembly of the printer, the coupling guide enters the retracted portion from which the coupling member has retracted.Type: ApplicationFiled: August 1, 2018Publication date: November 29, 2018Inventors: Shigemi Kamoshida, Takeshi Arimitsu, Isao Koishi, Yusuke Niikawa
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Patent number: 10107362Abstract: A drive transmission mechanism includes a first gearbox including a driving source, a first gear train, a first frame configured to support one ends of a plurality of shafts of the first gear train, and a first gear cover configured to support the other ends of the shafts of the first gear train, wherein the first gear box is configured to transmit a driving force from the driving source; and a second gearbox including a second gear train, a second frame configured to support one ends of a plurality of shafts of the second gear train, and a second gear cover configured to support the other ends of the shafts of the second gear train, wherein the second gearbox is configured to receive the driving force from the driving source through the first gear train and configured to transmit the driving force. The second gearbox is fixed to the first gearbox.Type: GrantFiled: August 4, 2017Date of Patent: October 23, 2018Assignee: Canon Kabushiki KaishaInventors: Yusuke Niikawa, Shoji Yamamoto
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Publication number: 20180038454Abstract: A drive transmission mechanism includes a first gearbox including a driving source, a first gear train, a first frame configured to support one ends of a plurality of shafts of the first gear train, and a first gear cover configured to support the other ends of the shafts of the first gear train, wherein the first gear box is configured to transmit a driving force from the driving source; and a second gearbox including a second gear train, a second frame configured to support one ends of a plurality of shafts of the second gear train, and a second gear cover configured to support the other ends of the shafts of the second gear train, wherein the second gearbox is configured to receive the driving force from the driving source through the first gear train and configured to transmit the driving force. The second gearbox is fixed to the first gearbox.Type: ApplicationFiled: August 4, 2017Publication date: February 8, 2018Inventors: Yusuke Niikawa, Shoji Yamamoto
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Publication number: 20170371296Abstract: A cartridge mountable to a printer, said printer including a coupling guide contactable to a coupling of the cartridge to guide the coupling member. A case of the cartridge is provided with a hole for exposing a free end portion of the coupling to an outside of the cartridge, and a retracted portion provided in downstream of the hole with respect to the mounting direction of the cartridge. When the cartridge is mounted to a main assembly of the printer, the coupling guide enters the retracted portion from which the coupling member has retracted.Type: ApplicationFiled: September 7, 2017Publication date: December 28, 2017Inventors: Shigemi Kamoshida, Takeshi Arimitsu, Isao Koishi, Yusuke Niikawa
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Patent number: 9791825Abstract: A cartridge mountable to a printer, said printer including a coupling guide contactable to a coupling of the cartridge to guide the coupling member. A case of the cartridge is provided with a hole for exposing a free end portion of the coupling to an outside of the cartridge, and a retracted portion provided in downstream of the hole with respect to the mounting direction of the cartridge. When the cartridge is mounted to a main assembly of the printer, the coupling guide enters the retracted portion from which the coupling member has retracted.Type: GrantFiled: February 24, 2016Date of Patent: October 17, 2017Assignee: Canon Kabushiki KaishaInventors: Shigemi Kamoshida, Takeshi Arimitsu, Isao Koishi, Yusuke Niikawa
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Publication number: 20160246250Abstract: A cartridge mountable to a printer, said printer including a coupling guide contactable to a coupling of the cartridge to guide the coupling member. A case of the cartridge is provided with a hole for exposing a free end portion of the coupling to an outside of the cartridge, and a retracted portion provided in downstream of the hole with respect to the mounting direction of the cartridge. When the cartridge is mounted to a main assembly of the printer, the coupling guide enters the retracted portion from which the coupling member has retracted.Type: ApplicationFiled: February 24, 2016Publication date: August 25, 2016Inventors: Shigemi Kamoshida, Takeshi Arimitsu, Isao Koishi, Yusuke Niikawa
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Patent number: 9342040Abstract: An image forming apparatus for forming an image on a recording material includes a mounting portion to which a cartridge is detachably mounted and a drive transmission member for transmitting a driving force by being engaged with a drive-transmitted member provided on the cartridge when the cartridge is mounted to the mounting portion. In addition, a protecting member is movable between a protecting position where the drive transmission member is prevented from being exposed toward the mounting portion and an open position where the protecting member is retracted from the protecting position to expose the drive transmission member to the mounting portion thereby to permit engagement of the drive transmission member with the drive-transmitted member.Type: GrantFiled: December 12, 2013Date of Patent: May 17, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Yusuke Niikawa, Daisuke Yamamoto, Takeshi Arimitsu, Isao Koishi
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Patent number: 9083831Abstract: An image forming apparatus includes an image forming portion; an image reader movable between a first open position and a first closed position; an openable member movable between a second open position and a second closed position; and a supporting member. When the image reader is located at the first open position, the openable member is supported at the second open position by the supporting member. When the image reader is moved from the supported state toward the first closed position, closing of the openable member from a predetermined position closer to the second closed position than the second open position is limited by the supporting member. When the image reader is moved toward the first closed position from a limited state in which the closing of the openable member is limited by the supporting member, limitation of the openable member by the supporting member is eliminated.Type: GrantFiled: March 27, 2014Date of Patent: July 14, 2015Assignee: Canon Kabushiki KaishaInventor: Yusuke Niikawa
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Publication number: 20140293359Abstract: An image forming apparatus includes: an image forming portion; an image reader movable between a first open position and a first closed portion; an openable member movable between a second open position and a second closed position; and a supporting member. When the image reader is located at the first open position, the openable member is supported at the second open position by the supporting member. When the image reader is moved from the supported state toward the first closed position, close of the openable member from a predetermined position closer to the second closed position than the second open position is limited by the supporting member. When the image reader is moved, toward the first closed position, from a limited state in which the close of the openable member is limited by the supporting member, limitation of the openable member by the supporting member is eliminated.Type: ApplicationFiled: March 27, 2014Publication date: October 2, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Yusuke NIIKAWA
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Publication number: 20140161489Abstract: An image forming apparatus for forming an image on a recording material, includes: a mounting portion to which a cartridge is detachably mounted; a drive transmission member for transmitting a driving force by being engaged with a drive-transmitted member provided on the cartridge when the cartridge is mounted to the mounting portion; and a protecting member movable between a protecting position where the drive transmission member is prevented from being exposed toward the mounting portion and an open position where the protecting member is retracted from the protecting position to expose the drive transmission member to the mounting portion thereby to permit engagement of the drive transmission member with the drive-transmitted member.Type: ApplicationFiled: December 12, 2013Publication date: June 12, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Yusuke Niikawa, Daisuke Yamamoto, Takeshi Arimitsu, Isao Koishi
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Patent number: 8744305Abstract: An image forming apparatus includes an image forming portion for forming an image on a recording material; an image reading portion, for reading an original image, movable between a first position in which the image reading portion opposes the image forming portion and a second position in which the image reading portion is partly raised from the image forming portion; an openable member movable, relative to the image forming portion independently of the image reading portion, between an open position in which the openable member exposes an inside of the image forming portion and a closed position in which the openable member covers the image forming member; and preventing means capable of preventing movement of the openable member toward the closed position when the image reading member is located at the second position.Type: GrantFiled: June 7, 2010Date of Patent: June 3, 2014Assignee: Canon Kabushiki KaishaInventor: Yusuke Niikawa
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Patent number: 8521059Abstract: An inexpensive and stable regulating member which can control, without depending on an open/close cover, movement of a cartridge used for an image forming apparatus transportable in a cartridge-mounted state is provided. The regulating member includes a first contact portion which receives a first force applied from the cartridge to inside of the regulating member and a second contact portion which receives a second force that prevents the regulating member from moving from a regulating position by receiving the first force at a position away from a mounting and dismounting path of the cartridge where the cartridge passes when the cartridge is mounted on or dismounted from the apparatus main body.Type: GrantFiled: January 12, 2011Date of Patent: August 27, 2013Assignee: Canon Kabushiki KaishaInventors: Norio Furuya, Wataru Uchida, Takeshi Niimura, Yusuke Niikawa
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Publication number: 20110170905Abstract: An inexpensive and stable regulating member which can control, without depending on an open/close cover, movement of a cartridge used for an image forming apparatus transportable in a cartridge-mounted state is provided. The regulating member includes a first contact portion which receives a first force applied from the cartridge to inside of the regulating member and a second contact portion which receives a second force that prevents the regulating member from moving from a regulating position by receiving the first force at a position away from a mounting and dismounting path of the cartridge where the cartridge passes when the cartridge is mounted on or dismounted from the apparatus main body.Type: ApplicationFiled: January 12, 2011Publication date: July 14, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Norio Furuya, Wataru Uchida, Takeshi Niimura, Yusuke Niikawa
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Publication number: 20100315658Abstract: An image forming apparatus includes an image forming portion for forming an image on a recording material; an image reading portion, for reading an original image, movable between a first position in which the image reading portion opposes the image forming portion and a second position in which the image reading portion is partly raised from the image forming portion; an openable member movable, relative to the image forming portion independently of the image reading portion, between an open position in which the openable member exposes an inside of the image forming portion and a closed position in which the openable member covers the image forming member; and preventing means capable of preventing movement of the openable member toward the closed position when the image reading member is located at the second position.Type: ApplicationFiled: June 7, 2010Publication date: December 16, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Yusuke Niikawa