Patents by Inventor Noritomo Yamaguchi
Noritomo Yamaguchi 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: 20130308971Abstract: A developer accommodating unit includes: a developer accommodating member, provided with an opening for permitting discharge of a developer, for accommodating the developer; a sealing member including a connecting portion for being connected to the developer accommodating member so as to seal the opening; and an unsealing member for exposing the opening by moving the sealing member to peel the connecting portion from the developer accommodating member. The connecting portion includes a first connecting portion and a second connecting portion with respect to a longitudinal direction thereof. When the connecting portion is peeled from the developer accommodating member, the unsealing member is flexed so that the first connecting portion is peeled earlier than the second connecting portion.Type: ApplicationFiled: May 15, 2013Publication date: November 21, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Yosuke Kashiide, Noritomo Yamaguchi, Yuichi Fukui
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Patent number: 8550455Abstract: The present invention provides an image forming apparatus which can secure a stacking ability even when a paper is curled. An apex portion is provided downstream in the sheet discharge direction with respect to a center of gravity of the sheets discharged on the discharge tray, and an upstream portion in the sheet discharge direction of the sheet is pushed downward by the image reading apparatus, with respect to a downstream end in the sheet discharge direction of the sheet stacked on the discharge tray, at the downstream portion in the sheet discharge direction with respect to the apex portion of the discharge tray, and the upstream portion of the sheet is pressed by a flag while the downstream portion in the sheet discharge direction of the sheet is bent with the apex portion of the discharge tray.Type: GrantFiled: May 29, 2012Date of Patent: October 8, 2013Assignee: Canon Kabushiki KaishaInventor: Noritomo Yamaguchi
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Publication number: 20120235349Abstract: The present invention provides an image forming apparatus which can secure a stacking ability even when a paper is curled. An apex portion is provided downstream in the sheet discharge direction with respect to a center of gravity of the sheets discharged on the discharge tray, and an upstream portion in the sheet discharge direction of the sheet is pushed downward by the image reading apparatus, with respect to a downstream end in the sheet discharge direction of the sheet stacked on the discharge tray, at the downstream portion in the sheet discharge direction with respect to the apex portion of the discharge tray, and the upstream portion of the sheet is pressed by a flag while the downstream portion in the sheet discharge direction of the sheet is bent with the apex portion of the discharge tray.Type: ApplicationFiled: May 29, 2012Publication date: September 20, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Noritomo Yamaguchi
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Patent number: 8238786Abstract: An electrophotographic image forming apparatus includes a cartridge supporting member movable between an inside position in the main assembly of the apparatus and an outside position outside the main assembly. The apparatus further includes a first opening through which the cartridge supporting member passes between the inside position and the outside position and a first openable member for openably closing the first opening. A second opening is provided continuing from the first opening and provided above the first opening, with the second opening being effective to permit the cartridge to be removed from the cartridge supporting member in the state that the cartridge supporting member takes the outside position and being effective to permit the supporting member to support the cartridge. The apparatus also includes a second openable member for openably closing the second opening.Type: GrantFiled: September 28, 2009Date of Patent: August 7, 2012Assignee: Canon Kabushiki KaishaInventors: Noritomo Yamaguchi, Takao Nada, Tomoya Tateishi
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Patent number: 8229338Abstract: The image fixing apparatus forms a cleaning nip portion by pressing a web roll-up portion on a fixing rotation member with a feeding roller, a used portion for cleaning of the web is fed from a cleaning nip portion formation area, and during non-cleaning, a roller is at a waiting position at which the roller is farther from the fixing rotation member than its position during cleaning so as to separate the web roll-up portion from the fixing rotation member. Accordingly, it is possible to reduce degradation of a cleaning ability due to a toner component held by the used portion of the cleaning web.Type: GrantFiled: February 19, 2010Date of Patent: July 24, 2012Assignee: Canon Kabushiki KaishaInventors: Hideo Nanataki, Kenji Takagi, Keisuke Mitsuhashi, Noritomo Yamaguchi, Terutaka Endo
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Patent number: 8210528Abstract: The present invention provides an image forming apparatus which can secure a stacking ability even when a paper is curled. An apex portion is provided downstream in the sheet discharge direction with respect to a center of gravity of the sheets discharged on the discharge tray, and an upstream portion in the sheet discharge direction of the sheet is pushed downward by the image reading apparatus, with respect to a downstream end in the sheet discharge direction of the sheet stacked on the discharge tray, at the downstream portion in the sheet discharge direction with respect to the apex portion of the discharge tray, and the upstream portion of the sheet is pressed by a flag while the downstream portion in the sheet discharge direction of the sheet is bent with the apex portion of the discharge tray.Type: GrantFiled: January 28, 2011Date of Patent: July 3, 2012Assignee: Canon Kabushiki KaishaInventor: Noritomo Yamaguchi
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Patent number: 8059989Abstract: A color electrophotographic image forming apparatus is disclosed. The apparatus includes a cartridge supporting member supporting a plurality of cartridges and moving between a position inside a main body of the apparatus and a mounting and detaching position for mounting and detaching the cartridges. The apparatus further includes an engaging portion provided to one of the supporting member and the main body at a position corresponding to the mounting and detaching position for at least one cartridge, and a pressure member provided to the other and elastically urged to disengageably engage with the engaging portion. When the supporting member is moved from the inside position to the mounting and detaching position, a load required for movement of the supporting member at the mounting and detaching position is made larger than a load required for movement at other positions than the mounting and detaching position.Type: GrantFiled: June 8, 2010Date of Patent: November 15, 2011Assignee: Canon Kabushiki KaishaInventors: Tomoya Tateishi, Takao Nada, Noritomo Yamaguchi
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Publication number: 20110198801Abstract: The present invention provides an image forming apparatus which can secure a stacking ability even when a paper is curled. An apex portion is provided downstream in the sheet discharge direction with respect to a center of gravity of the sheets discharged on the discharge tray, and an upstream portion in the sheet discharge direction of the sheet is pushed downward by the image reading apparatus, with respect to a downstream end in the sheet discharge direction of the sheet stacked on the discharge tray, at the downstream portion in the sheet discharge direction with respect to the apex portion of the discharge tray, and the upstream portion of the sheet is pressed by a flag while the downstream portion in the sheet discharge direction of the sheet is bent with the apex portion of the discharge tray.Type: ApplicationFiled: January 28, 2011Publication date: August 18, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Noritomo Yamaguchi
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Patent number: 7957659Abstract: Provided is an image forming apparatus in which the image forming apparatus has a marginless mode in which the toner image is formed on said image bearing member in an area that covers the recording material and an area outside the recording material, and the toner image is transferred to extend beyond an edge of the recording material carried by said recording material carrying member, the image forming apparatus further including: a detecting device which detects the toner image that extends beyond the edge of the recording material and is transferred to said recording material carrying member in the marginless mode; and a control device which uses a detection result provided by said detecting device to control where said exposure device forms a latent image on said image bearing member.Type: GrantFiled: November 21, 2008Date of Patent: June 7, 2011Assignee: Canon Kabushiki KaishaInventors: Takao Nada, Takuma Abe, Kiyoharu Yoshioka, Tomonori Shida, Keisuke Mitsuhashi, Michio Uchida, Noritomo Yamaguchi, Tomoya Tateishi
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Patent number: 7890019Abstract: A color electrophotographic image forming apparatus includes a main body, cartridge support, an engaging portion, and a pressure member. The support supports a plurality of cartridges and moves between a first position in the main body and a second position for mounting and detaching the cartridges. The engaging portion is provided to one of the support and the main body at a position corresponding to the second position for at least one cartridge. The pressure member is provided to the other and is elastically urged to disengageably engage the engaging portion. When the support moves from the first to the second position, a load required for movement of the support at the second position is larger than a load required for the movement at other positions than the second position, by engagement of the pressure member with the engaging portion.Type: GrantFiled: December 15, 2008Date of Patent: February 15, 2011Assignee: Canon Kabushiki KaishaInventors: Tomoya Tateishi, Takao Nada, Noritomo Yamaguchi
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Publication number: 20100247143Abstract: A color electrophotographic image forming apparatus including: a cartridge supporting member supporting a plurality of cartridges and moving between an inside position in the main body and a mounting and detaching position for mounting and detaching the cartridges; an engaging portion provided to one of the supporting member and the main body at a position corresponding to the mounting and detaching position for at least one cartridge; and a pressure member provided to the other and elastically urged to disengageably engage with the engaging portion, wherein when the supporting member is moved from the inside position to the mounting and detaching position, a load required for movement of the supporting member at the mounting and detaching position is made larger than a load required for the movement at other positions than the mounting and detaching position, by engagement of the pressure member with the engaging portion.Type: ApplicationFiled: June 8, 2010Publication date: September 30, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Tomoya Tateishi, Takao Nada, Noritomo Yamaguchi
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Publication number: 20100232849Abstract: The image fixing apparatus forms a cleaning nip portion by pressing a web roll-up portion on a fixing rotation member with a feeding roller, a used portion for cleaning of the web is fed from a cleaning nip portion formation area, and during non-cleaning, a roller is at a waiting position at which the roller is further from the fixing rotation member than a position during cleaning so as to separate the web roll-up portion from the fixing rotation member. Accordingly, it is possible to reduce degradation of a cleaning ability due to a toner component held by the used portion of the cleaning web.Type: ApplicationFiled: February 19, 2010Publication date: September 16, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Hideo Nanataki, Kenji Takagi, Keisuke Mitsuhashi, Noritomo Yamaguchi, Terutaka Endo
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Publication number: 20100119254Abstract: A color electrophotographic image forming apparatus including: a cartridge supporting member supporting a plurality of cartridges and moving between an inside position in the main body and a mounting and detaching position for mounting and detaching the cartridges; an engaging portion provided to one of the supporting member and the main body at a position corresponding to the mounting and detaching position for at least one cartridge; and a pressure member provided to the other and elastically urged to disengageably engage with the engaging portion, wherein when the supporting member is moved from the inside position to the mounting and detaching position, a load required for movement of the supporting member at the mounting and detaching position is made larger than a load required for the movement at other positions than the mounting and detaching position, by engagement of the pressure member with the engaging portion.Type: ApplicationFiled: December 15, 2008Publication date: May 13, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Tomoya Tateishi, Takao Nada, Noritomo Yamaguchi
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Publication number: 20100080614Abstract: An electrophotographic image forming apparatus in the state that cartridge is detachably mounted to a main assembly of the apparatus, the apparatus includes a cartridge supporting member movable between an inside position in the main assembly and an outside position outside the main assembly when a cartridge is mountable thereto and dismountable from the cartridge supporting member; a first opening through which the cartridge supporting member passes between the inside position and the outside position; a first openable member for openably closing the first opening; a second opening continuing from the first opening and provided above the first opening, the second opening being effective to permit the cartridge to be removed from the cartridge supporting member in the state that cartridge supporting member takes the outside position and being effective to permit the supporting member to support the cartridge; a second openable member for openably closing the second opening, the second openable member being efType: ApplicationFiled: September 28, 2009Publication date: April 1, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Noritomo Yamaguchi, Takao Nada, Tomoya Tateishi
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Publication number: 20090136247Abstract: Provided is an image forming apparatus in which the image forming apparatus has a marginless mode in which the toner image is formed on said image bearing member in an area that covers the recording material and an area outside the recording material, and the toner image is transferred to extend beyond an edge of the recording material carried by said recording material carrying member, the image forming apparatus further including: a detecting device which detects the toner image that extends beyond the edge of the recording material and is transferred to said recording material carrying member in the marginless mode; and a control device which uses a detection result provided by said detecting device to control where said exposure device forms a latent image on said image bearing member.Type: ApplicationFiled: November 21, 2008Publication date: May 28, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Takao Nada, Takuma Abe, Kiyoharu Yoshioka, Tomonori Shida, Keisuke Mitsuhashi, Michio Uchida, Noritomo Yamaguchi, Tomoya Tateishi