Patents by Inventor Shimpei Shinohara
Shimpei Shinohara 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: 8939527Abstract: An ink jet printing apparatus can suppress vibrations to a low level without local concentration of abrasion between a carriage and a guide shaft. The ink jet printing apparatus makes the carriage reciprocate along the guide shaft without ejecting ink, thus achieving a stirring operation in which the ink stored in an ink tank is stirred. At least one of a limited range in one direction, in which the stirring operation is performed, and a portion of the guide shaft that contacts the carriage when viewed from the one direction, is changeable.Type: GrantFiled: April 24, 2013Date of Patent: January 27, 2015Assignee: Canon Kabushiki KaishaInventors: Shimpei Shinohara, Takeshi Sekino
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Patent number: 8845217Abstract: A printing apparatus capable of maintaining print sheet conveying performance while keeping apparatus cost low and apparatus size small is provided. The printing apparatus includes a conveying mechanism and a print unit. The conveying mechanism includes a conveying roller which is a driving roller, a plurality of pinch rollers which are passive rollers disposed facing the conveying roller, and a plurality of pinch roller axles supporting the pinch rollers. The print unit prints onto a sheet conveyed by the conveying rollers and the plurality of pinch rollers. The conveying mechanism includes one or more first pinch roller sets including two pinch rollers and a first pinch roller axle supporting the two pinch rollers, and one or more second pinch roller sets including three pinch rollers and a second pinch roller axle supporting the three pinch rollers.Type: GrantFiled: August 23, 2011Date of Patent: September 30, 2014Assignee: Canon Kabushiki KaishaInventors: Seiji Ogasawara, Shimpei Shinohara
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Patent number: 8747001Abstract: A printing apparatus capable of maintaining print sheet conveying performance while keeping apparatus cost low and apparatus size small is provided. The printing apparatus includes a conveying mechanism and a print unit. The conveying mechanism includes a conveying roller which is a driving roller, a plurality of pinch rollers which are passive rollers disposed facing the conveying roller, and a plurality of pinch roller axles supporting the pinch rollers. The print unit prints onto a sheet conveyed by the conveying rollers and the plurality of pinch rollers. The conveying mechanism includes one or more first pinch roller sets including two pinch rollers and a first pinch roller axle supporting the two pinch rollers, and one or more second pinch roller sets including three pinch rollers and a second pinch roller axle supporting the three pinch rollers.Type: GrantFiled: August 23, 2011Date of Patent: June 10, 2014Assignee: Canon Kabushiki KaishaInventors: Seiji Ogasawara, Shimpei Shinohara
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Publication number: 20130300784Abstract: There is provided an ink jet printing apparatus, in which vibrations can be suppressed to a low level without local concentration of abrasion between a carriage and a guide shaft. The ink jet printing apparatus makes the carriage reciprocate along the guide shaft without ejecting ink, thus achieving a stirring operation in which the ink reserved in an ink tank is stirred. At least either one of a limited range in one direction, in which a stirring operation is performed, and a portion of the guide shaft that contacts the carriage when seeing from the direction, is changeable.Type: ApplicationFiled: April 24, 2013Publication date: November 14, 2013Applicant: Canon Kabushiki KaishaInventors: Shimpei Shinohara, Takeshi Sekino
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Patent number: 8459766Abstract: A first rotator is provided on an upstream side of the carriage that holds a print head and a second rotator is provided on a downstream side of the carriage. The print head is allowed to move to a maintenance unit in a first state in which a sheet is in contact with both the first rotator and the second rotator during printing. The print head is not allowed to move to the maintenance unit in a second state in which the sheet is in contact with either one of the first rotator and the second rotator and the sheet is not in contact with the other rotator during printing.Type: GrantFiled: August 23, 2011Date of Patent: June 11, 2013Assignee: Canon Kabushiki KaishaInventors: Shimpei Shinohara, Seiji Ogasawara, Atsushi Takahashi
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Publication number: 20120050361Abstract: A first rotator is provided on an upstream side of the carriage that holds a print head and a second rotator is provided on a downstream side of the carriage. The print head is allowed to move to a maintenance unit in a first state in which a sheet is in contact with both the first rotator and the second rotator during printing. The print head is not allowed to move to the maintenance unit in a second state in which the sheet is in contact with either one of the first rotator and the second rotator and the sheet is not in contact with the other rotator during printing.Type: ApplicationFiled: August 23, 2011Publication date: March 1, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Shimpei Shinohara, Seiji Ogasawara, Atsushi Takahashi
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Publication number: 20120051825Abstract: A printing apparatus capable of maintaining print sheet conveying performance while keeping apparatus cost low and apparatus size small is provided. The printing apparatus includes a conveying mechanism and a print unit. The conveying mechanism includes a conveying roller which is a driving roller, a plurality of pinch rollers which are passive rollers disposed facing the conveying roller, and a plurality of pinch roller axles supporting the pinch rollers. The print unit prints onto a sheet conveyed by the conveying rollers and the plurality of pinch rollers. The conveying mechanism includes one or more first pinch roller sets including two pinch rollers and a first pinch roller axle supporting the two pinch rollers, and one or more second pinch roller sets including three pinch rollers and a second pinch roller axle supporting the three pinch rollers.Type: ApplicationFiled: August 23, 2011Publication date: March 1, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Seiji Ogasawara, Shimpei Shinohara