Patents by Inventor Masahito Yoshida
Masahito Yoshida 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: 8851770Abstract: A control unit includes a memory storing correction data obtained by associating information acquired by a first acquisition unit (rotary encoder) with information acquired by a second acquisition unit (direct sensor) with respect to, at least one rotation of a conveying roller. When a plurality of images are sequentially printed on a first surface and a second surface of a continuous sheet, the control unit reads the correction data corresponding to the rotation information acquired by the first acquisition unit from the memory and corrects at least one of driving control of a print head and driving control of the roller. The correction data used in printing on the first surface of the sheet is different from that used in printing on the second surface of the sheet.Type: GrantFiled: November 18, 2010Date of Patent: October 7, 2014Assignee: Canon Kabushiki KaishaInventors: Yasuhiko Ikeda, Masahito Yoshida, Koichiro Kawaguchi, Kenji Shigeno, Toshiki Takeuchi, Masato Izumi, Ryosuke Sato, Kengo Nieda
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Patent number: 8833893Abstract: A reference mark is formed for cutting a sheet in a region between a first image printed on the sheet being conveyed and a second image, and the sheet is cut based on the detected reference mark. The second image is printed such that the length of the region in a conveying direction in which the sheet is conveyed corresponds to the length of the first image in the direction.Type: GrantFiled: January 27, 2012Date of Patent: September 16, 2014Assignee: Canon Kabushiki KaishaInventors: Takayuki Okamoto, Masahito Yoshida
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Patent number: 8824953Abstract: A device includes a winding rotary member having a cylindrical shape; a holder having a rotating member, which is provided in the vicinity of a cylindrical surface of the winding rotary member, capable of nipping and conveying the sheet; a first driving mechanism configured to rotate the winding rotary member; and a second driving mechanism configured to rotate the rotating member. The winding rotary member rotates with the sheet is nipped with the rotatable holder, whereby the sheet is wound around the winding rotary member.Type: GrantFiled: November 18, 2010Date of Patent: September 2, 2014Assignee: Canon Kabushiki KaishaInventors: Kota Uchida, Manabu Kanazawa, Masahito Yoshida, Tetsuhiro Nitta, Takayuki Okamoto
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Patent number: 8783859Abstract: A sheet conveyance apparatus comprising: a first processing unit including a first sheet conveyance mechanism; a second processing unit including a second sheet conveyance mechanism; a cutting unit, interposed between the first processing unit and the second processing unit, for cutting the sheet; and a controlling unit that controls, in a case of trouble with sheet conveyance, driving of the first sheet conveyance mechanism until an end of the sheet reaches the first processing unit side beyond a cutting position of the cutting unit.Type: GrantFiled: October 17, 2012Date of Patent: July 22, 2014Assignee: Canon Kabushiki KaishaInventors: Toshiaki Tokisawa, Yoshiaki Suzuki, Kanto Kurasawa, Masahito Yoshida, Kota Uchida, Takayuki Okamoto
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Patent number: 8746997Abstract: A method includes pulling out and conveying a sheet having splice portions, acquiring information relating to a position of an indentation on the sheet formed in addition to a splice portion, and performing processing on the sheet but a position corresponding to the acquired position of the indentation and its vicinity.Type: GrantFiled: March 4, 2013Date of Patent: June 10, 2014Assignee: Canon Kabushiki KaishaInventors: Toshiki Takeuchi, Yasuhiko Ikeda, Koichiro Kawaguchi, Kengo Nieda, Masahito Yoshida, Masato Izumi, Kenji Shigeno, Ryosuke Sato
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Patent number: 8662618Abstract: In the event that occurrence of a jam has been detected during conveyance of a sheet, the sheet is cut at a cutter unit, and a user is prompted to perform manual jam restoration processing according to the location where the jam has occurred. If the jam has occurred upstream from the cutter unit, the cut sheets left downstream from the cutter unit are discharged as completed articles.Type: GrantFiled: November 30, 2010Date of Patent: March 4, 2014Assignee: Canon Kabushiki KaishaInventors: Takayuki Okamoto, Masahito Yoshida, Kota Uchida
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Patent number: 8558457Abstract: A lamp (14) has an inner tube (32) pinch sealed at one end to form a pinch seal (82), to which a base (36) is attached. The base (36) has a pair of base pins (102, 104) provided in parallel to the axis of the inner tube (32). A pair of connection wires (98, 100) that extend out from the pinch seal (82) are inserted into the respective base pins (102, 104) and are fixed by concavities located in a portion of the base pins (102, 104). Each of the concavities is concave in a direction orthogonal to the base pins (102, 104) and parallel to an imaginary plane that traverses central axes of the base pins (102, 104).Type: GrantFiled: January 21, 2011Date of Patent: October 15, 2013Assignee: Panasonic CorporationInventors: Atsushi Utsubo, Shunsuke Kakisaka, Jun Tominaga, Masahito Yoshida
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Patent number: 8554127Abstract: In a first step, a sheet is conveyed in a direction, whereby a leading end portion of the sheet is fed to a position between a decurl roller and a decurl pinch roller, which are in positions spaced apart from each other. In a second step, the leading end portion of the sheet is curved and held by causing the decurl pinch roller to come close to or press against the decurl roller. In a third step, the leading end portion of the sheet is withdrawn from between the decurl roller and the decurl pinch roller by conveying the sheet in a direction opposed to the conveying direction. After executing the first to third steps, the sheet is conveyed in the conveying direction through the first step while the sheet is curved by the decurl roller.Type: GrantFiled: September 14, 2012Date of Patent: October 8, 2013Assignee: Canon Kabushiki KaishaInventors: Masahito Yoshida, Yasuhiko Ikeda, Kenji Shigeno, Koichiro Kawaguchi, Toshiki Takeuchi, Masato Izumi, Kengo Nieda, Ryosuke Sato
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Patent number: 8540360Abstract: An apparatus for performing duplex printing having a sheet feeding unit, a printing unit, a cutter unit, a drying unit, and a reverse unit. In the duplex printing, the printing unit prints a plurality of images on a first surface of a sheet fed from the sheet feeding unit. The sheet is a continuous sheet. The sheet printed on the first surface passes through the drying unit and is led to the reverse unit. The reverse unit feeds the reversed sheet to the printing unit and the printing unit prints a plurality of images on a second surface that is a back of the first surface of the sheet fed from the reverse unit. The cutter unit cuts the sheet printed on the second surface into a plurality of cut sheets each having the image printed thereon. The cut sheets pass through the drying unit and are ejected.Type: GrantFiled: November 18, 2010Date of Patent: September 24, 2013Assignee: Canon Kabushiki KaishaInventors: Tetsuhiro Nitta, Yasuhiko Ikeda, Masahito Yoshida, Kota Uchida
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Patent number: 8485630Abstract: A device includes a conveying roller configured to convey a recording medium, a follower roller configured to press the recording medium against the conveying roller, a detector configured to detect a direction of skew of the conveyed recording medium, and a changer configured to change a state of contact between the recording medium and the conveying roller in accordance with a result of the detection by the detector such that a length of a portion of the conveying roller that is in contact with the recording medium in a conveyance direction is larger on a side toward which the recording medium is skewed than on an opposite side.Type: GrantFiled: November 12, 2010Date of Patent: July 16, 2013Assignee: Canon Kabushiki KaishaInventors: Koichiro Kawaguchi, Yasuhiko Ikeda, Toshiki Takeuchi, Kengo Nieda, Masahito Yoshida, Masato Izumi, Kenji Shigeno, Ryosuke Sato, Noriyuki Sugiyama, Takaaki Ishida
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Patent number: 8427056Abstract: A lamp having: an arc tube (30) including a main tube portion and a pair of thin tube portions (46) provided at ends of the main tube portion; and an adjacent conductor (78) including a strip-shaped metal plate. In the adjacent conductor (78), a portion of the metal plate in the direction of length thereof, from the middle of the metal plate to just before an edge thereof, is a gripping portion (92) having a shape suitable for gripping the outer circumferential of one of the thin tube portions (46). One end of the gripping portion (92) is a free end. The gripping portion (92) is disposed along an outer circumferential surface of the thin tube portion (46) so as to be in contact with the outer circumferential surface, and is elastically deformable in accordance with expansion in the radial direction of the thin tube portion (46).Type: GrantFiled: January 12, 2011Date of Patent: April 23, 2013Assignee: Panasonic CorporationInventors: Atsushi Utsubo, Shunsuke Kakisaka, Akio Takubo, Masahito Yoshida, Yukiya Kanazawa
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Patent number: 8408827Abstract: A method includes pulling out and conveying a sheet having splice portions, acquiring information relating to a position of an indentation on the sheet formed in addition to a splice portion, and performing processing on the sheet but a position corresponding to the acquired position of the indentation and its vicinity.Type: GrantFiled: June 28, 2010Date of Patent: April 2, 2013Assignee: Canon Kabushiki KaishaInventors: Toshiki Takeuchi, Yasuhiko Ikeda, Koichiro Kawaguchi, Kengo Nieda, Masahito Yoshida, Masato Izumi, Kenji Shigeno, Ryosuke Sato
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Patent number: 8393705Abstract: An apparatus includes a line-type recording head including a plurality of recording elements formed thereon, a holding unit configured to hold a sheet, a conveyance mechanism configured to convey the sheet held by the holding unit to a position of recording by the recording head, a shift mechanism capable of relatively shifting a position of the sheet in a sheet width direction with respect to the recording head while the sheet is fed from the holding unit to the recording position, and a control unit configured to control the conveyance mechanism and the shift mechanism.Type: GrantFiled: November 19, 2010Date of Patent: March 12, 2013Assignee: Canon Kabushiki KaishaInventors: Kenji Shigeno, Yasuhiko Ikeda, Masahito Yoshida, Koichiro Kawaguchi, Toshiki Takeuchi, Masato Izumi, Ryosuke Sato, Kengo Nieda
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Publication number: 20130010043Abstract: In a first step, a sheet is conveyed in a direction, whereby a leading end portion of the sheet is fed to a position between a decurl roller and a decurl pinch roller, which are in positions spaced apart from each other. In a second step, the leading end portion of the sheet is curved and held by causing the decurl pinch roller to come close to or press against the decurl roller. In a third step, the leading end portion of the sheet is withdrawn from between the decurl roller and the decurl pinch roller by conveying the sheet in a direction opposed to the conveying direction. After executing the first to third steps, the sheet is conveyed in the conveying direction through the first step while the sheet is curved by the decurl roller.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Masahito Yoshida, Yasuhiko Ikeda, Kenji Shigeno, Koichiro Kawaguchi, Toshiki Takeuchi, Masato Izumi, Kengo Nieda, Ryosuke Sato
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Patent number: 8295758Abstract: In a first step, a sheet is conveyed in a direction, whereby a leading end portion of the sheet is fed to a position between a decurl roller and a decurl pinch roller, which are in positions spaced apart from each other. In a second step, the leading end portion of the sheet is curved and held by causing the decurl pinch roller to come close to or press against the decurl roller. In a third step, the leading end portion of the sheet is withdrawn from between the decurl roller and the decurl pinch roller by conveying the sheet in a direction opposed to the conveying direction. After executing the first to third steps, the sheet is conveyed in the conveying direction through the first step while the sheet is curved by the decurl roller.Type: GrantFiled: October 25, 2010Date of Patent: October 23, 2012Assignee: Canon Kabushiki KaishaInventors: Masahito Yoshida, Yasuhiko Ikeda, Kenji Shigeno, Koichiro Kawaguchi, Toshiki Takeuchi, Masato Izumi, Kengo Nieda, Ryosuke Sato
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Publication number: 20120204693Abstract: A recording medium cutting apparatus includes a conveyance unit configured to convey a recording medium, a conveyance path through which the recording medium to be conveyed by the conveyance unit passes, a cutting unit configured to cut the recording medium, a discharge port provided on the midway of the conveyance path, for discharging a portion cut off the recording medium by the cutting unit from the conveyance path, and a discharge unit configured, when the recording medium is cut, to come into contact with the recording medium from an opposite side to the discharge port, to cause a portion to be cut off of the recording medium to be positioned toward an outside of a conveyance path from the discharge port.Type: ApplicationFiled: February 10, 2012Publication date: August 16, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Masahito Yoshida
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Publication number: 20120194597Abstract: A reference mark is formed for cutting a sheet in a region between a first image printed on the sheet being conveyed and a second image, and the sheet is cut based on the detected reference mark. The second image is printed such that the length of the region in a conveying direction in which the sheet is conveyed corresponds to the length of the first image in the direction.Type: ApplicationFiled: January 27, 2012Publication date: August 2, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Takayuki Okamoto, Masahito Yoshida
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Publication number: 20120187829Abstract: A lamp (14) has an inner tube (32) pinch sealed at one end to form a pinch seal (82), to which a base (36) is attached. The base (36) has a pair of base pins (102, 104) provided in parallel to the axis of the inner tube (32). A pair of connection wires (98, 100) that extend out from the pinch seal (82) are inserted into the respective base pins (102, 104) and are fixed by concavities located in a portion of the base pins (102, 104). Each of the concavities is concave in a direction orthogonal to the base pins (102, 104) and parallel to an imaginary plane that traverses central axes of the base pins (102, 104).Type: ApplicationFiled: January 21, 2011Publication date: July 26, 2012Inventors: Atsushi Utsubo, Shunsuke Kakisaka, Jun Tominaga, Masahito Yoshida
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Publication number: 20120146498Abstract: A lamp having: an arc tube (30) including a main tube portion and a pair of thin tube portions (46) provided at ends of the main tube portion; and an adjacent conductor (78) including a strip-shaped metal plate. In the adjacent conductor (78), a portion of the metal plate in the direction of length thereof, from the middle of the metal plate to just before an edge thereof, is a gripping portion (92) having a shape suitable for gripping the outer circumferential of one of the thin tube portions (46). One end of the gripping portion (92) is a free end. The gripping portion (92) is disposed along an outer circumferential surface of the thin tube portion (46) so as to be in contact with the outer circumferential surface, and is elastically deformable in accordance with expansion in the radial direction of the thin tube portion (46).Type: ApplicationFiled: January 12, 2011Publication date: June 14, 2012Inventors: Atsushi Utsubo, Shunsuke Kakisaka, Akio Takubo, Masahito Yoshida, Yukiya Kanazawa
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Publication number: 20110280642Abstract: A control unit includes a memory storing correction data obtained by associating information acquired by a first acquisition unit (rotary encoder) with information acquired by a second acquisition unit (direct sensor) with respect to, at least one rotation of a conveying roller. When a plurality of images are sequentially printed on a first surface and a second surface of a continuous sheet, the control unit reads the correction data corresponding to the rotation information acquired by the first acquisition unit from the memory and corrects at least one of driving control of a print head and driving control of the roller. The correction data used in printing on the first surface of the sheet is different from that used in printing on the second surface of the sheet.Type: ApplicationFiled: November 18, 2010Publication date: November 17, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Yasuhiko Ikeda, Masahito Yoshida, Koichiro Kawaguchi, Kenji Shigeno, Toshiki Takeuchi, Masato Izumi, Ryosuke Sato, Kengo Nieda