Patents by Inventor Akihito Tokutsu
Akihito Tokutsu 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).
-
Patent number: 8854706Abstract: An auto document feeding device includes: a carrying member configured to carry an original from an original setting unit to an image scanning unit; a fixed guide unit configured to change a carrying direction of the original, at between the carrying member and the image scanning unit; a movable guide unit which is movable between the fixed guide unit and the carrying member; and a paper discharge unit configured to discharge the original which passed through the image scanning unit.Type: GrantFiled: July 1, 2010Date of Patent: October 7, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Osamu Kitazawa, Masakazu Iwamoto, Shinichi Miyakawa, Seiji Iino, Akihito Tokutsu, Mitsunori Ishii, Naoki Shoji
-
Patent number: 8605343Abstract: According to the embodiment, an automatic document feeder includes a first transport unit which transports a document fed from a document tray to a reading portion in a first direction after turning over the document, and a second transport unit which transports the document fed from the document tray to the reading portion in a second direction and transports the document passed through the reading portion to the reading portion in the first direction after turning over the document. When an image on one side of the document is read, the document is sorted to be transported to the first transport unit, and when images on both sides of the document are read, the document is sorted to be transported to the second transport unit.Type: GrantFiled: June 23, 2011Date of Patent: December 10, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Akihito Tokutsu
-
Patent number: 8503048Abstract: According to one embodiment, an auto document feeding device comprises: a document placing section on which documents are placed; a first gate configured to divert the documents in a first direction or a second direction; a first conveying unit or a second conveying unit configured to lead the documents to the image scanning unit; a paper discharging and conveying unit configured to lead the documents from the image scanning unit in the direction of the paper discharge tray; a reversing roller configured to switch back the documents passed through the paper discharging and conveying unit; a reversing and conveying unit configured to convey the documents from the reversing roller to the first gate; and a second gate configured to divert the documents passed through the paper discharging and conveying unit to the reversing and conveying unit.Type: GrantFiled: January 19, 2011Date of Patent: August 6, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Akihito Tokutsu
-
Publication number: 20120308285Abstract: An auto-document feeder includes plural conveying sections which have different paths to reach an image scanning section configured to scan an image on a document from a paper feeding section and which guide the document to the image scanning section, a scanning conveying section configured to alternately nip the documents one by one fed by the plural conveying sections and feed the documents in a direction of a paper discharge section through the image scanning section, a gate section which directs the documents to one of the plural conveying sections, and a detecting section configured to detect if a document is fed by the paper feeding section.Type: ApplicationFiled: January 30, 2012Publication date: December 6, 2012Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Naoki Shoji, Shinji Miwa, Shoichi Taniguchi, Osamu Kitazawa, Akihito Tokutsu, Seiji Iino, Mitsunori Ishii, Takeshi Kojima, Takeshi Ito
-
Publication number: 20120262766Abstract: An auto-document feeder includes a first image scanning section configured to scan an image on first side of documents, a paper feeding section configured to feed the documents one by one, from which images are read by the first image scanning section, a paper discharge section which discharges the documents passing through the first image scanning section, plural conveying sections having different paths to reach the first image scanning section and which guide the document from the paper feeding section to the first image scanning section, a gate section which directs the documents fed by the paper feeding section to one of the plural conveying sections, a second image scanning section configured to scan the image on second side of the documents, a double feeding detecting section which positioned between the first image scanning section and the second image scanning section.Type: ApplicationFiled: January 19, 2012Publication date: October 18, 2012Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Mitsunori Ishii, Naoki Shoji, Shoichi Taniguchi, Osamu Kitazawa, Akihito Tokutsu, Seiji Iino, Shinji Miwa, Takeshi Kojima, Takeshi Ito
-
Publication number: 20120182590Abstract: An auto-document feeder includes a first image scanning section configured to scan an image on first side of a document, a paper feeding section configured to feed one by one the documents, from which images are read by the first image scanning section, a paper discharge section which discharges the document passed through the first image scanning section, plural conveying section which have different paths to reach the first image scanning section and which guide the document from the paper feeding section to the first image scanning section, a gate section which divides the document, which fed by the paper feeding section, to one of the plural conveying sections, a second image scanning section configured to scan the image on second side of a document, a jam detecting section which is located between the first image scanning section and the second image scanning section.Type: ApplicationFiled: January 19, 2012Publication date: July 19, 2012Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Seiji Iino, Naoki Shoji, Shoichi Taniguchi, Osamu Kitazawa, Akihito Tokutsu, Shinji Miwa, Mitsunori Ishii, Takeshi Kojima, Takeshi Ito
-
Patent number: 8203767Abstract: An auto document feeding device causes an original document passing through an OUT path and an original document passing through an IN path to flow together with overlap a trailing edge of a preceding original document and a leading edge of a following original document. Before the original documents reach to a READ document glass, the auto document feeding device comprises a separating unit configured to separate an overlapping portion of the original documents. The auto document feeding device reduces a distance between the preceding original document and the following original document passing on the READ document glass to nearly 0 mm.Type: GrantFiled: November 2, 2009Date of Patent: June 19, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Osamu Kitazawa, Masakazu Iwamoto, Seiji Iino, Akihito Tokutsu, Shinichi Miyakawa, Mitsunori Ishii
-
Patent number: 8199383Abstract: The lengths of an OUT path and an IN path are made longer than the length of a document of a main size in a traveling direction. The document of the main size stands by for conveyance in a direction of a READ document glass in a state where the entire document is contained in the OUT path or the IN path. The entrance speed of the document into the OUT path or the IN path is equal to the read speed of a scanner. The leading edge of a subsequent document is overlapped on the trailing edge of a preceding document, and the document is conveyed to the READ document glass.Type: GrantFiled: June 26, 2009Date of Patent: June 12, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Akihito Tokutsu, Seiji Iino, Mitsunori Ishii, Masakazu Iwamoto, Shinichi Miyakawa, Osamu Kitazawa
-
Patent number: 8177225Abstract: An automatic document feeder of the present invention is provided with a turning/discharging path in a reversing path in order to read images on both sides of documents in lengths less than the main size and discharge in a discharging tray. Further, an aligning wall is provided to bump ends of documents discharged from the turning/discharging path against it. Thus, the documents of which both sides are read are discharged in the sequentially collated state at a high-speed and the aligned state.Type: GrantFiled: December 16, 2008Date of Patent: May 15, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Akihito Tokutsu
-
Publication number: 20120112401Abstract: An auto-document feeder includes: a paper feeding section configured to feed original documents one by one; a first feeding section configured to feed the fed original document through a first feeding path; a second feeding section configured to feed the fed original document through a second feeding path; a third feeding section configured to alternately nip one by one the fed original documents; a determining section configured to determine that the original document is nipped by the third feeding section; and a document diverting and feeding section configured to alternately divert and feed, into the first feeding path and the second feeding path, the fed original documents and, if the preceding original document is present, after the preceding original document is detected by the determining section, feed the following original document into the first or second feeding path into which the preceding original document is not fed.Type: ApplicationFiled: October 14, 2011Publication date: May 10, 2012Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Akihito Tokutsu, Shinji Miwa, Naoki Shoji, Shoichi Taniguchi, Osamu Kitazawa, Seiji IINO, Mitsunori Ishii, Takeshi Kojima, Takeshi Ito
-
Publication number: 20120091651Abstract: An auto-document feeder includes: a document placing section on which an original document is placed; a sheet detection sensor configured to detect the original document, length in a feeding direction of the original document being first length larger than second length; a length detection sensor configured to detect the length of the original document while the original document is fed; a first feeding path for feeding the original document to a reading section for reading an image of the original document; a second feeding path for feeding the original document to the reading section, the second feeding path being different from the first feeding path; a switching section configured to selectively switch the first feeding path and the second feeding path; and a control section configured to divert, with the switching section, the original document to the first feeding path if the sheet detection sensor detects the original document.Type: ApplicationFiled: October 14, 2011Publication date: April 19, 2012Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Shinji Miwa, Naoki Shoji, Shoichi Taniguchi, Osamu Kitazawa, Akihito Tokutsu, Seiji Iino, Mitsunori Ishii, Takeshi Kojima, Takeshi Ito
-
Publication number: 20120008178Abstract: According to the embodiment, an automatic document feeder includes a first transport unit which transports a document fed from a document tray to a reading portion in a first direction after turning over the document, and a second transport unit which transports the document fed from the document tray to the reading portion in a second direction and transports the document passed through the reading portion to the reading portion in the first direction after turning over the document. When an image on one side of the document is read, the document is sorted to be transported to the first transport unit, and when images on both sides of the document are read, the document is sorted to be transported to the second transport unit.Type: ApplicationFiled: June 23, 2011Publication date: January 12, 2012Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventor: Akihito Tokutsu
-
Publication number: 20110181926Abstract: According to one embodiment, an auto document feeding device comprises: a document placing section on which documents are placed; a first gate configured to divert the documents in a first direction or a second direction; a first conveying unit or a second conveying unit configured to lead the documents to the image scanning unit; a paper discharging and conveying unit configured to lead the documents from the image scanning unit in the direction of the paper discharge tray; a reversing roller configured to switch back the documents passed through the paper discharging and conveying unit; a reversing and conveying unit configured to convey the documents from the reversing roller to the first gate; and a second gate configured to divert the documents passed through the paper discharging and conveying unit to the reversing and conveying unit.Type: ApplicationFiled: January 19, 2011Publication date: July 28, 2011Inventor: Akihito Tokutsu
-
Publication number: 20110079953Abstract: A double feed detection apparatus includes a first element and a second element at positions where they are opposite to each other across a sheet, and a direction in which an ultrasonic wave or a light passes through the sheet is vertical to a conveyance direction of the sheet. An auto sheet feeder includes the first element and the second element of the double feed detection apparatus in a range from a downstream side of a joining point of an outside conveyance path and an inside conveyance path in the sheet conveyance direction to a near side of a read part.Type: ApplicationFiled: September 2, 2010Publication date: April 7, 2011Applicants: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Mitsunori ISHII, Akihito Tokutsu, Seiji Iino, Masakazu Iwamoto, Shinichi Miyakawa, Osamu Kitazawa
-
Publication number: 20110007370Abstract: An auto document feeding device includes: a carrying member configured to carry an original from an original setting unit to an image scanning unit; a fixed guide unit configured to change a carrying direction of the original, at between the carrying member and the image scanning unit; a movable guide unit which is movable between the fixed guide unit and the carrying member; and a paper discharge unit configured to discharge the original which passed through the image scanning unit.Type: ApplicationFiled: July 1, 2010Publication date: January 13, 2011Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Osamu KITAZAWA, Masakazu IWAMOTO, Shinichi MIYAKAWA, Seiji IINO, Akihito TOKUTSU, Mitsunori ISHII, Naoki SHOJI
-
Publication number: 20100109226Abstract: An auto document feeding device causes an original document passing through an OUT path and an original document passing through an IN path to flow together with overlap a trailing edge of a preceding original document and a leading edge of a following original document. Before the original documents reach to a READ document glass, the auto document feeding device comprises a separating unit configured to separate an overlapping portion of the original documents. The auto document feeding device reduces a distance between the preceding original document and the following original document passing on the READ document glass to nearly 0 mm.Type: ApplicationFiled: November 2, 2009Publication date: May 6, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Osamu Kitazawa, Masakazu Iwamoto, Seiji Iino, Akihito Tokutsu, Shinichi Miyakawa, Mitsunori Ishii
-
Publication number: 20100014902Abstract: The lengths of an OUT path and an IN path are made longer than the length of a document of a main size in a traveling direction. The document of the main size stands by for conveyance in a direction of a READ document glass in a state where the entire document is contained in the OUT path or the IN path. The entrance speed of the document into the OUT path or the IN path is equal to the read speed of a scanner. The leading edge of a subsequent document is overlapped on the trailing edge of a preceding document, and the document is conveyed to the READ document glass.Type: ApplicationFiled: June 26, 2009Publication date: January 21, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Akihito TOKUTSU, Seiji IINO, Mitsunori ISHII, Masakazu IWAMOTO, Shinichi MIYAKAWA, Osamu KITAZAWA
-
Patent number: 7633657Abstract: According to an embodiment of the present invention, an image forming apparatus having an automatic document carrier device including a plurality of sensors arranged in a path where source documents to be read are carried; a plurality of motors configured to detect the positions of the source documents by these sensors and to carry the source documents at a predetermined speed; a cooling fan to be rotated to reduce the ambient temperature; a fan motor configured to drive the cooling fan; and a carrier control unit configured to control the plurality of sensors, the plurality of motors and the fan motor, wherein the carrier control unit detects passage of the source documents by any of the plurality of sensors, estimates a time when the source documents are discharged into the discharge tray, and stops the fan motor around the estimated time.Type: GrantFiled: March 8, 2006Date of Patent: December 15, 2009Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki KaishaInventor: Akihito Tokutsu
-
Publication number: 20090251744Abstract: An OUT conveying member and an IN conveying member which reach pre-scan rollers from a document tray are provided. In the case of continuously conveying a document, while a preceding document is conveyed by one conveying member, a following document is caused to stand by in the other conveying member. The documents are conveyed in the state where the distance between the preceding document and the following document is close to 0 mm.Type: ApplicationFiled: March 27, 2009Publication date: October 8, 2009Applicants: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Akihito TOKUTSU
-
Publication number: 20090096151Abstract: An automatic document feeder of the present invention is provided with a turning/discharging path in a reversing path in order to read images on both sides of documents in lengths less than the main size and discharge in a discharging tray. Further, an aligning wall is provided to bump ends of documents discharged from the turning/discharging path against it. Thus, the documents of which both sides are read are discharged in the sequentially collated state at a high-speed and the aligned state.Type: ApplicationFiled: December 16, 2008Publication date: April 16, 2009Inventor: Akihito TOKUTSU