Patents by Inventor Satoshi Narai
Satoshi Narai 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: 20150341515Abstract: An image scanner includes a primary conveyance roller to convey an original bearing an image in an original conveyance direction and an image reader disposed downstream from the primary conveyance roller in the original conveyance direction to read the image on the original. A moving original reading portion is disposed opposite the image reader. The image reader reads the image on the original through the moving original reading portion while the original moves over the moving original reading portion. A slope is disposed downstream from the moving original reading portion in the original conveyance direction. A spacer is interposed between the moving original reading portion and the slope in the original conveyance direction. A secondary conveyance roller has an original contact point to come into contact with the original. The original contact point is disposed opposite the spacer with an interval therebetween.Type: ApplicationFiled: May 5, 2015Publication date: November 26, 2015Applicant: Ricoh Company, Ltd.Inventors: Yasunobu YOUDA, Koji HATAYAMA, Tatsuaki NAGANO, Yohei OSANAI, Satoshi NARAI, Masafumi KISHI
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Patent number: 8947751Abstract: An image reading device, which can be included in an image forming apparatus, includes an image pickup device, a transparent member, a traveling body, and a housing. The traveling body includes a light source to emit light and guides the light reflected from a surface of the document to the image pickup device while moving in a sub scanning direction along the document surface on the transparent member. The housing accommodates the image pickup device and the traveling body, and includes a base member including a rectangular bottom surface and a side surface, and a rail member including a rail surface and a first vertical surface. The rail member further includes a fixing part that is a surface to be fixed to the bottom surface of the base member and to extend from one end of the rail member in the sub scanning direction to the other end.Type: GrantFiled: January 16, 2014Date of Patent: February 3, 2015Assignee: Ricoh, Company Ltd.Inventors: Hiroshi Kusumoto, Tatsuaki Nagano, Yohei Osanai, Satoshi Narai, Masafumi Kishi, Toshiyuki Horikawa
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Publication number: 20140347711Abstract: An image scanner includes a stationary original plate on which a stationary original is placed and a moving original plate, over which a moving original is conveyed, aligned with the stationary original plate in a sub-scanning direction and tilted relative to the stationary original plate by a given angle. A reader is movable in the sub-scanning direction between a stationary original reading span disposed opposite the stationary original via the stationary original plate to read an image on the stationary original and a moving original reading position disposed opposite the moving original via the moving original plate to read an image on the moving original. The reader pressingly contacts the stationary original plate and the moving original plate as the reader moves in the sub-scanning direction.Type: ApplicationFiled: August 13, 2014Publication date: November 27, 2014Applicant: RICOH COMPANY, LTD.Inventors: Satoshi NARAI, Yasunobu YOUDA, Taku KUDOH, Takayuki ANDOH, Koji HATAYAMA, Yohei OSANAI
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Patent number: 8861048Abstract: An image scanner includes a stationary original plate on which a stationary original is placed and a moving original plate, over which a moving original is conveyed, aligned with the stationary original plate in a sub-scanning direction and tilted relative to the stationary original plate by a given angle. A reader is movable in the sub-scanning direction between a stationary original reading span disposed opposite the stationary original via the stationary original plate to read an image on the stationary original and a moving original reading position disposed opposite the moving original via the moving original plate to read an image on the moving original. The reader pressingly contacts the stationary original plate and the moving original plate as the reader moves in the sub-scanning direction.Type: GrantFiled: May 17, 2013Date of Patent: October 14, 2014Assignee: Ricoh Company, Ltd.Inventors: Satoshi Narai, Yasunobu Youda, Taku Kudoh, Takayuki Andoh, Koji Hatayama, Yohei Osanai
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Patent number: 8800990Abstract: An automatic document feeder includes an upstream conveyance roller pair disposed upstream of an image reader including an upstream driving roller and an upstream driven roller; a downstream conveyance roller pair including a downstream driving roller and a downstream driven roller; an upstream auxiliary roller pair including upstream auxiliary rollers disposed coaxially on a shaft of the upstream driving roller and of the upstream driven roller, respectively, each formed of an elastic member and having a diameter greater than that of the adjacent upstream driving roller and of the adjacent upstream driven roller, respectively; and a downstream auxiliary roller pair including downstream auxiliary rollers each disposed coaxially on a shaft of the downstream driving roller and of the downstream driven roller, formed of a low-hardness elastic member and having a diameter greater than that of the adjacent downstream driving roller and of the adjacent downstream driven roller.Type: GrantFiled: October 18, 2011Date of Patent: August 12, 2014Assignee: Ricoh Company, Ltd.Inventors: Koji Hatayama, Yasunobu Youda, Taku Kudoh, Takayuki Andoh, Yohei Osanai, Satoshi Narai, Takashi Fujii
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Publication number: 20140211279Abstract: An image reading device, which can be included in an image forming apparatus, includes an image pickup device, a transparent member, a traveling body, and a housing. The traveling body includes a light source to emit light and guides the light reflected from a surface of the document to the image pickup device while moving in a sub scanning direction along the document surface on the transparent member. The housing accommodates the image pickup device and the traveling body, and includes a base member including a rectangular bottom surface and a side surface, and a rail member including a rail surface and a first vertical surface. The rail member further includes a fixing part that is a surface to be fixed to the bottom surface of the base member and to extend from one end of the rail member in the sub scanning direction to the other end.Type: ApplicationFiled: January 16, 2014Publication date: July 31, 2014Applicant: Ricoh Company, Ltd.Inventors: Hiroshi KUSUMOTO, Tatsuaki NAGANO, Yohei OSANAI, Satoshi NARAI, Masafumi KISHI, Toshiyuki HORIKAWA
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Publication number: 20130335790Abstract: An image scanner includes a stationary original plate on which a stationary original is placed and a moving original plate, over which a moving original is conveyed, aligned with the stationary original plate in a sub-scanning direction and tilted relative to the stationary original plate by a given angle. A reader is movable in the sub-scanning direction between a stationary original reading span disposed opposite the stationary original via the stationary original plate to read an image on the stationary original and a moving original reading position disposed opposite the moving original via the moving original plate to read an image on the moving original. The reader pressingly contacts the stationary original plate and the moving original plate as the reader moves in the sub-scanning direction.Type: ApplicationFiled: May 17, 2013Publication date: December 19, 2013Applicant: RICOH COMPANY, LTD.Inventors: Satoshi NARAI, Yasunobu YOUDA, Taku KUDOH, Takayuki ANDOH, Koji HATAYAMA, Yohei OSANAI
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Patent number: 8322710Abstract: An automatic sheet feeder includes a sheet setting unit to set a sheet to be fed by a sheet feeding member, an openably closable cover rotatably disposed over an upper portion of the sheet setting unit, a sheet detector rotatably supported on the cover to detect whether or not a sheet is set on the sheet setting unit and including a detection member, a rotary shaft about which the detection member rotates, and a sensor to detect the setting of the sheet according to a movement of the detection member, and a rotating member to cause the detection member to rotate in a direction such that an angle between a line extending in a longitudinal direction of the detection member and a surface of the sheet set on the sheet setting unit decreases as the cover rotates from an open position to a closed position.Type: GrantFiled: April 25, 2011Date of Patent: December 4, 2012Assignee: Ricoh Company, Ltd.Inventors: Takayuki Andoh, Kohji Hatayama, Yohei Osanai, Satoshi Narai, Taku Kudoh
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Publication number: 20120104676Abstract: An automatic document feeder includes an upstream conveyance roller pair disposed upstream of an image reader including an upstream driving roller and an upstream driven roller; a downstream conveyance roller pair including a downstream driving roller and a downstream driven roller; an upstream auxiliary roller pair including upstream auxiliary rollers disposed coaxially on a shaft of the upstream driving roller and of the upstream driven roller, respectively, each formed of an elastic member and having a diameter greater than that of the adjacent upstream driving roller and of the adjacent upstream driven roller, respectively; and a downstream auxiliary roller pair including downstream auxiliary rollers each disposed coaxially on a shaft of the downstream driving roller and of the downstream driven roller, formed of a low-hardness elastic member and having a diameter greater than that of the adjacent downstream driving roller and of the adjacent downstream driven roller.Type: ApplicationFiled: October 18, 2011Publication date: May 3, 2012Applicant: Ricoh Company, Ltd.Inventors: Koji Hatayama, Yasunobu Youda, Taku Kudoh, Takayuki Andoh, Yohei Osanai, Satoshi Narai, Takashi Fujii
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Publication number: 20110285078Abstract: An automatic sheet feeder includes a sheet setting unit to set a sheet to be fed by a sheet feeding member, an openably closable cover rotatably disposed over an upper portion of the sheet setting unit, a sheet detector rotatably supported on the cover to detect whether or not a sheet is set on the sheet setting unit and including a detection member, a rotary shaft about which the detection member rotates, and a sensor to detect the setting of the sheet according to a movement of the detection member, and a rotating member to cause the detection member to rotate in a direction such that an angle between a line extending in a longitudinal direction of the detection member and a surface of the sheet set on the sheet setting unit decreases as the cover rotates from an open position to a closed position.Type: ApplicationFiled: April 25, 2011Publication date: November 24, 2011Applicant: Ricoh Company, Ltd.Inventors: Takayuki Andoh, Kohji Hatayama, Yohei Osanai, Satoshi Narai, Taku Kudoh