Patents by Inventor Yasuyuki Hirai
Yasuyuki Hirai 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: 11916296Abstract: An antenna device, for a mobile body, of this disclosure includes an antenna configured to be installed in the mobile body, and a reflector having a reflection surface configured to change a beam direction of the antenna.Type: GrantFiled: January 29, 2020Date of Patent: February 27, 2024Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaro Miki, Suguru Yamagishi, Takanori Fukunaga, Ichiro Kuwayama, Toyohisa Takano, Hiroki Hirai, Norichika Oomi, Kosuke Sone, Yasuyuki Yamamoto
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Patent number: 9890001Abstract: A sheet feeding apparatus includes a feeding unit, a separation surface, a first separation part configured to switch between a condition in which the first separation part is protruded from the separate surface and the sheet comes into contact with the first separation part and a condition in which the first separation part is retracted from the separate surface and the sheet does not come into contact with the first separation part and to be fixed to each of the two conditions and a second separation part configured to be movable in a direction from a condition in which the second separation part is protruded from the separate surface and the sheet is capable of come into contact with the second separation part to a condition in which the second separation part is retracted from the separate surface, according to a contact force received from the sheet.Type: GrantFiled: August 18, 2015Date of Patent: February 13, 2018Assignee: Canon Kabushiki KaishaInventors: Hisashi Taniguchi, Yasuyuki Hirai, Yasuyuki Asai, Motoyuki Taguchi, Atsushi Ikeda, Kyoshiro Okude
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Publication number: 20160052733Abstract: A sheet feeding apparatus includes a feeding unit, a separation surface, a first separation part configured to switch between a condition in which the first separation part is protruded from the separate surface and the sheet comes into contact with the first separation part and a condition in which the first separation part is retracted from the separate surface and the sheet does not come into contact with the first separation part and to be fixed to each of the two conditions and a second separation part configured to be movable in a direction from a condition in which the second separation part is protruded from the separate surface and the sheet is capable of come into contact with the second separation part to a condition in which the second separation part is retracted from the separate surface, according to a contact force received from the sheet.Type: ApplicationFiled: August 18, 2015Publication date: February 25, 2016Inventors: Hisashi Taniguchi, Yasuyuki Hirai, Yasuyuki Asai, Motoyuki Taguchi, Atsushi Ikeda, Kyoshiro Okude
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Patent number: 8944584Abstract: An ink jet recording apparatus capable of landing an ink drop on an exact position on a recording medium is provided. The ink jet recording apparatus performs recording on a recording medium which has been subjected to application processing with a pretreatment liquid. The ink jet recording apparatus has an electrostatic belt which has a resistance layer formed on the surface thereof, and a power feed roller which imparts charges to the surface of the electrostatic belt. The recording head discharges ink to the surface of the recording medium when the back of the recording medium comes into contact with the surface of the electrostatic belt to which the charges have been imparted.Type: GrantFiled: December 6, 2010Date of Patent: February 3, 2015Assignee: Canon Kabushiki KaishaInventors: Atsushi Sakamoto, Hitoshi Nishikori, Nozomu Nishiberi, Yasuyuki Hirai, Yasufumi Tanaami
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Patent number: 8944585Abstract: A printing apparatus is provided which can prevent foreign matters such as ink adhering to the surface of the conveying belt from getting transferred to other constitutional components. When the conveying belt is rotating in one direction, the foreign matters adhering to the surface of the conveying belt is removed by the wiper. When the conveying belt rotates a predetermined distance in the opposite direction, the pinch roller, the electric charge removing roller and the electric charge supply roller that are in contact with the belt surface are disengaged from the surface of the conveying belt. The predetermined distance is set equal to a rotating distance that the conveying belt rotates until a portion of the surface of the conveying belt, which was in contact with the wiper, comes into contact with the pinch roller, the electric charge removing roller and the electric charge supply roller.Type: GrantFiled: April 20, 2011Date of Patent: February 3, 2015Assignee: Canon Kabushiki KaishaInventors: Yasuyuki Hirai, Kentaro Onuma, Masaaki Ishihara
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Patent number: 8807556Abstract: Even in printing apparatus that make use of a plurality of kinds of sheets, the degradation of image quality is reduced. A sheet conveying apparatus includes: a sheet stacking unit; a sheet conveying unit being in contact with the sheet stacked on an uppermost portion, of the stacked sheets, and conveying the sheet; a separation unit separating the sheets into only one sheet of the uppermost portion by a separation slope that abuts a tip portion of the sheet conveyed by the sheet conveying unit; and a guide unit connected to the separation unit and guiding the sheet, in which an angle between the sheet stacking unit and the separation slope is switched to a first angle and a second angle smaller than the first angle by a rotation center of the separation unit provided in a vicinity of a connection portion of the separation unit and the guide unit.Type: GrantFiled: June 21, 2012Date of Patent: August 19, 2014Assignee: Canon Kabushiki KaishaInventors: Noriyuki Sugiyama, Hiroyuki Saito, Atsushi Ikeda, Yasuyuki Hirai, Noriko Sato, Masashi Ito, Fumie Kameyama
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Patent number: 8651614Abstract: In an inkjet printing apparatus, a printing medium is conveyed in a conveying direction by causing the printing medium to adsorb to the surface of the endless belt by electrostatic force. When printing, the surface potential of the printing medium directly below the printing head is acquired. The discharge speed of the ink that has been associated in advance with the acquired surface potential is obtained, and an amount of variation in the landing position of the ink is determined based on the scanning speed of the printing head, the distance from the printing head to the printing medium, and the discharge speed of the ink. The timing of discharge of ink from the printing head is corrected to cancel out the determined amount of variation, and printing is performed based on image data in accordance with the corrected timing.Type: GrantFiled: November 30, 2011Date of Patent: February 18, 2014Assignee: Canon Kabushiki KaishaInventors: Atsushi Sakamoto, Hitoshi Nishikori, Tomoki Yamamuro, Yasuyuki Hirai
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Patent number: 8641184Abstract: Provided is a recording medium conveying mechanism including an endless center conveying belt and endless side conveying belts, the endless center conveying belt and the endless side conveying belts being looped over a driving roller to be driven by a motor, a driven roller and a tension roller. The center conveying belt is positioned in a center in a width direction of a recording medium to be conveyed, and the side conveying belts are positioned on opposite sides in a width direction of the center conveying belt, respectively. The center conveying belt includes a material with a high elastic modulus while the side conveying belts include a material with a low elastic modulus, and a biasing member for providing a tension to the center conveying belt and the side conveying belts is provided on a shaft of the tension roller.Type: GrantFiled: November 15, 2010Date of Patent: February 4, 2014Assignee: Canon Kabushiki KaishaInventors: Nozomu Nishiberi, Yasufumi Tanaami, Yasuyuki Hirai
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Publication number: 20130001859Abstract: Even in printing apparatus that make use of a plurality of kinds of sheets, the degradation of image quality is reduced. A sheet conveying apparatus includes: a sheet stacking unit; a sheet conveying unit being in contact with the sheet stacked on an uppermost portion, of the stacked sheets, and conveying the sheet; a separation unit separating the sheets into only one sheet of the uppermost portion by a separation slope that abuts a tip portion of the sheet conveyed by the sheet conveying unit; and a guide unit connected to the separation unit and guiding the sheet, in which an angle between the sheet stacking unit and the separation slope is switched to a first angle and a second angle smaller than the first angle by a rotation center of the separation unit provided in a vicinity of a connection portion of the separation unit and the guide unit.Type: ApplicationFiled: June 21, 2012Publication date: January 3, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Noriyuki Sugiyama, Hiroyuki Saito, Atsushi Ikeda, Yasuyuki Hirai, Noriko Sato, Masashi Ito, Fumie Kameyama
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Publication number: 20120154472Abstract: In an inkjet printing apparatus, a printing medium is conveyed in a conveying direction by causing the printing medium to adsorb to the surface of the endless belt by electrostatic force. When print, the surface potential of the printing medium directly below the printing head is acquired. The discharge speed of the ink that has been associated in advance with the acquired surface potential is obtained, and an amount of variation in the landing position of the ink is determined based on the scanning speed of the printing head, the distance from the printing head to the printing medium, and the discharge speed of the ink. The timing of discharge of ink from the printing head is corrected to cancel out the determined amount of variation, and printing is performed based on image data in accordance with the corrected timing.Type: ApplicationFiled: November 30, 2011Publication date: June 21, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Atsushi Sakamoto, Hitoshi Nishikori, Tomoki Yamamuro, Yasuyuki Hirai
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Publication number: 20110261130Abstract: A printing apparatus is provided which can prevent foreign matters such as ink adhering to the surface of the conveying belt from getting transferred to other constitutional components. When the conveying belt is rotating in one direction, the foreign matters adhering to the surface of the conveying belt is removed by the wiper. When the conveying belt rotates a predetermined distance in the opposite direction, the pinch roller, the electric charge removing roller and the electric charge supply roller that are in contact with the belt surface are disengaged from the surface of the conveying belt. The predetermined distance is set equal to a rotating distance that the conveying belt rotates until a portion of the surface of the conveying belt, which was in contact with the wiper, comes into contact with the pinch roller, the electric charge removing roller and the electric charge supply roller.Type: ApplicationFiled: April 20, 2011Publication date: October 27, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Yasuyuki Hirai, Kentaro Onuma, Masaaki Ishihara
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Patent number: 8025289Abstract: A recording apparatus is capable of reliably correcting skew feeding of a recording sheet in an arrangement for conveying the recording sheet absorbed by a belt surface. The recording apparatus includes: a driving roller for driving the conveying belt wound around the driving roller and electrically charging the conveying belt by application of a voltage; and a pinching roller abutting against the driving roller via the conveying belt. A pinching section, which is formed by the driving roller and the pinching roller, corrects skew feeding of the recording sheet fed from the paper feed section and thereafter the voltage is applied to the driving roller to electrically charge the conveying belt.Type: GrantFiled: April 20, 2009Date of Patent: September 27, 2011Assignee: Canon Kabushiki KaishaInventor: Yasuyuki Hirai
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Publication number: 20110141213Abstract: An ink jet recording apparatus capable of landing an ink drop on an exact position on a recording medium is provided. An ink jet recording apparatus performs recording on a recording medium A which has been subjected to application processing with a pretreatment liquid. The ink jet recording apparatus has an electrostatic belt which has a resistance layer formed on the surface thereof, and a power feed roller which imparts charges to the surface of the electrostatic belt. The recording head discharges ink to the surface of the recording medium when the back of the recording medium comes into contact with the surface of the electrostatic belt to which the charges have been imparted.Type: ApplicationFiled: December 6, 2010Publication date: June 16, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Atsushi Sakamoto, Hitoshi Nishikori, Nozomu Nishiberi, Yasuyuki Hirai, Yasufumi Tanaami
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Publication number: 20110134201Abstract: Provided is a recording medium conveying mechanism including an endless center conveying belt and endless side conveying belts, the endless center conveying belt and the endless side conveying belts being looped over a driving roller to be driven by a motor, a driven roller and a tension roller. The center conveying belt is positioned in a center in a width direction of a recording medium to be conveyed, and the side conveying belts are positioned on opposite sides in a width direction of the center conveying belt, respectively. The center conveying belt includes a material with a high elastic modulus while the side conveying belts include a material with a low elastic modulus, and a biasing member for providing a tension to the center conveying belt and the side conveying belts is provided on a shaft of the tension roller.Type: ApplicationFiled: November 15, 2010Publication date: June 9, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Nozomu Nishiberi, Yasufumi Tanaami, Yasuyuki Hirai
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Patent number: 7762549Abstract: A recording apparatus includes a feeding section configured to feed a recording sheet, a first conveyance roller which conveys the recording sheet fed from the feeding section to a recording area and conveys the recording sheet during a recording operation, a recording section configured to record an image on the recording sheet at the recording area downstream from the first conveyance roller in the direction of feeding the recording sheet, a conveyance rate detection unit configured to detect the conveyance rate of the recording sheet conveyed by the first conveyance roller, a recording sheet end detection unit disposed downstream from the first conveyance roller and detects the end part of the recording sheet, and a correction unit configured to correct the conveyance rate of the recording sheet conveyed by the first conveyance roller based on a result detected by the conveyance rate detection unit.Type: GrantFiled: June 8, 2007Date of Patent: July 27, 2010Assignee: Canon Kabushiki KaishaInventor: Yasuyuki Hirai
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Publication number: 20090278301Abstract: A recording apparatus is capable of reliably correcting skew feeding of a recording sheet in an arrangement for conveying the recording sheet absorbed by a belt surface. The recording apparatus includes: a driving roller for driving the conveying belt wound around the driving roller and electrically charging the conveying belt by application of a voltage; and a pinching roller abutting against the driving roller via the conveying belt. A pinching section, which is formed by the driving roller and the pinching roller, corrects skew feeding of the recording sheet fed from the paper feed section and thereafter the voltage is applied to the driving roller to electrically charge the conveying belt.Type: ApplicationFiled: April 20, 2009Publication date: November 12, 2009Applicant: CANON KABUSHIKI KAISHAInventor: Yasuyuki Hirai
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Patent number: 7605957Abstract: An original document feed tray is positioned above an original document output tray. When original documents are set on the original document feed tray, the original document feed tray is moved upwardly from a home position to a position where the uppermost original document sheet can be transported to an original document transport mechanism. When the original document feed tray is lifted in accordance with the reduction of the original documents on the original document feed tray after the original documents are transported to the original document transport mechanism, the original document feed tray is lifted to a position, above the position where all original documents on the original document feed tray were transported to the original document transport mechanism.Type: GrantFiled: October 27, 2005Date of Patent: October 20, 2009Assignee: Kyocera Mita CorporationInventors: Hiroyuki Harada, Masayuki Yamada, Yasuyuki Hirai, Minoru Matsushita
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Publication number: 20090224460Abstract: A burden on a user when changing sheets such as with an ink jet printer and the like is reduced, and the necessary stack space is secured without considering the step difference up to the mounting surface of an ejected paper tray worth of the amount of curls for sheets that easily curls such as post cards and the like. Thus, enlargement of the apparatus and increase in the manufacturing cost are suppressed, and is easily adopted for low cost type for mass consumption.Type: ApplicationFiled: May 14, 2009Publication date: September 10, 2009Applicant: CANON KABUSHIKI KAISHAInventors: TETSUJI KURATA, KOSUKE YAMAMOTO, JUNICHI YOSHIKAWA, YASUYUKI HIRAI, YOSHITAKA OKAMURA
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Patent number: 7547011Abstract: A burden on a user when changing sheets such as with an ink jet printer and the like is reduced, and the necessary stack space is secured without considering the step difference up to the mounting surface of an ejected paper tray worth of the amount of curls for sheets that easily curls such as post cards and the like. Thus, enlargement of the apparatus and increase in the manufacturing cost are suppressed, and is easily adopted for low cost type for mass consumption.Type: GrantFiled: May 16, 2006Date of Patent: June 16, 2009Assignee: Canon Kabushiki KaishaInventors: Tetsuji Kurata, Kosuke Yamamoto, Junichi Yoshikawa, Yasuyuki Hirai, Yoshitaka Okamura
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Patent number: 7538150Abstract: The present invention discloses a thermosetting resin composition which comprises (A) 35 to 75 parts by weight of a thermosetting resin comprising a compound having a hydrobenzoxazine ring as a main component, (B) 10 to 25 parts by weight of a polycondensation product of a phenol, a compound having a triazine ring and an aldehyde, and (C) 10 to 45 parts by weight of an epoxy resin, based on 100 parts by weight of the total amount of organic solid components of Components (A), (B) and (C), and (i) a bisphenol F epoxy resin having a weight-average molecular weight of 1,000 to 3,000, or (ii) a mixed epoxy resin of bisphenol F epoxy resin and bisphenol A epoxy resin having a weight average molecular weight of 1,000 to 3,000, is contained in Component (C) in an amount of 0 to 100% by weight of Component (C); and a prepreg, a laminated board for a wiring board and a wiring board using the same.Type: GrantFiled: September 7, 2005Date of Patent: May 26, 2009Assignee: Hitachi Chemical Company, LtdInventors: Kenichi Oohori, Yoshihiro Nakamura, Hikari Murai, Yoshiyuki Takeda, Yasuyuki Hirai, Shinichi Kamoshida, Minoru Kakitani, Norihiro Abe, Syunichi Numata, Teruki Aizawa, Ken Nanaumi