Patents by Inventor Yasuhiro Sagawa
Yasuhiro Sagawa 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: 9623726Abstract: The present invention is concerned with a windowpane for vehicles including a glass sheet, a conductor layer which is formed on the surface of the glass sheet by sintering a silver paste containing a silver powder and a glass frit and which has at least a strip part and a terminal connection part connected to the strip part, and a connection terminal soldered onto the terminal connection part with a lead-free solder alloy, in which the conductor layer has a specific resistance of from 2.5 to 6.5 ??cm, the strip part has a line width of not more than 0.35 mm, the lead-free solder alloy consists essentially of tin and silver and has a content of tin of 95% by mass or more, and cracking is not caused on the glass sheet even after elapsing 500 cycles in a prescribed thermal shock test; and a method for producing same.Type: GrantFiled: July 12, 2013Date of Patent: April 18, 2017Assignee: ASAHI GLASS COMPANY, LIMITEDInventors: Yasuhiro Sagawa, Yuukou Minamiya
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Patent number: 8970858Abstract: An operator guidance system includes a detection unit, a control unit, and an operation indicator. The detection unit is disposed in an image forming apparatus to output a combination of detection signals, and includes one or more media sensors, and one or more opening sensors. The one or more media sensors are disposed along a media conveyance path to output a media detection signal. The one or more opening sensors are disposed adjacent to an openable structure to output an opening detection signal. The control unit is connected to the detection unit to determine guidance to be provided to an operator based on the combination of detection signals, and includes a memory and a controller. The operation indicator is connected to the control unit to indicate the identified operation to the operator.Type: GrantFiled: November 16, 2012Date of Patent: March 3, 2015Assignee: Ricoh Company, Ltd.Inventors: Mami Akiyama, Yasuhiro Sagawa, Masaharu Furuya, Manabu Izumikawa, Mikio Ishibashi, Yoshio Hattori, So Ohta, Ryo Takenaka, Hiroaki Murakami
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Patent number: 8944708Abstract: A sheet conveying device, that can be included in an image forming apparatus, includes a first conveying unit to convey a sheet in a first direction, a second conveying unit disposed on a downstream side of the first conveying unit to convey the sheet in a second direction, and a first path formed between the first and second conveying units. At least the second conveying unit has a holding section to hold and convey the sheet. The sheet conveying device further includes a belt conveying unit disposed along an outer side of the first path and includes a belt to convey the sheet toward the holding section. The belt is stretched around a first belt holding and rotating member and a second belt holding and rotating member disposed on an upstream side of the second conveying unit in the second direction.Type: GrantFiled: August 10, 2007Date of Patent: February 3, 2015Assignee: Ricoh Company, Ltd.Inventors: Hiroyuki Watase, Yasuhiro Sagawa, Kenji Ueda, Masayuki Ueda, Naoyuki Okamoto, Hiroshi Kajiyama, Yoshikuni Ishikawa
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Patent number: 8695969Abstract: A sheet adjusting device, applicable to a sheet holding receptacle and an image forming apparatus, includes a sheet setting plate to place a sheet thereon, first and second regulating member to slidably move in a given direction, and a drive transmission unit to transmit a driving power generated by a driving power source to at least the first regulating member and move the first regulating member in the given direction and to include a torque limiting unit to stop the first regulating member moving on the sheet setting plate by cutting off transmission of the driving power between a driven side transmission roller unit of the torque limiting unit and a driving side transmission roller unit of the torque limiting unit when a torque exceeding a given threshold is applied to the driven side transmission roller unit.Type: GrantFiled: January 6, 2011Date of Patent: April 15, 2014Assignee: Ricoh Company, Ltd.Inventors: Jumpei Aoyama, Yasuhiro Sagawa
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Patent number: 8684350Abstract: A sheet adjusting device, applicable to a sheet holding receptacle and an image forming apparatus, includes a sheet setting plate to place a sheet thereon, first and second regulating member to slidably move in a given direction, a drive transmission mechanism to transmit a driving power generated by a driving power source to at least one of the first and second regulating members and move the first regulating member in the given direction, and a stopping unit to stop the first regulating member moving toward the sheet on the setting, plate either when a load exceeding a given threshold is given to either the driving power source or the drive transmission mechanism or when a pressure exceeding a given threshold is given to at least one of the first and second regulating members.Type: GrantFiled: January 13, 2011Date of Patent: April 1, 2014Assignee: Ricoh Company, Ltd.Inventors: Yasuhiro Sagawa, Jumpei Aoyama
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Publication number: 20140008347Abstract: The present invention is concerned with a windowpane for vehicles including a glass sheet, a conductor layer which is formed on the surface of the glass sheet by sintering a silver paste containing a silver powder and a glass frit and which has at least a strip part and a terminal connection part connected to the strip part, and a connection terminal soldered onto the terminal connection part with a lead-free solder alloy, in which the conductor layer has a specific resistance of from 2.5 to 6.5 ??cm, the strip part has a line width of not more than 0.35 mm, the lead-free solder alloy consists essentially of tin and silver and has a content of tin of 95% by mass or more, and cracking is not caused on the glass sheet even after elapsing 500 cycles in a prescribed thermal shock test; and a method for producing same.Type: ApplicationFiled: July 12, 2013Publication date: January 9, 2014Inventors: Yasuhiro SAGAWA, Yuukou MINAMIYA
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Patent number: 8585043Abstract: A sheet adjusting device applicable to a sheet holding receptacle, an image forming mechanism, and an image reading mechanism includes a sheet setting plate to place a sheet thereon; first and second regulating member to slidably move in a given direction, and a friction-reducing unit disposed on the sheet setting plate to reduce a frictional force on an underside of the sheet. Alternatively, a sheet adjusting device includes a sheet setting plate, a sheet contact face disposed downstream of the sheet setting plate to cause the leading edge of the sheet abuts against the sheet contact face, first and second regulating member, and a friction-reducing unit disposed on the sheet contact face to reduce a frictional force on the sheet contact face and the leading edge of the sheet.Type: GrantFiled: January 6, 2011Date of Patent: November 19, 2013Assignee: Ricoh Company, Ltd.Inventors: Jumpei Aoyama, Yasuhiro Sagawa
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Publication number: 20130135646Abstract: An operator guidance system includes a detection unit, a control unit, and an operation indicator. The detection unit is disposed in an image forming apparatus to output a combination of detection signals, and includes one or more media sensors, and one or more opening sensors. The one or more media sensors are disposed along a media conveyance path to output a media detection signal. The one or more opening sensors are disposed adjacent to an openable structure to output an opening detection signal. The control unit is connected to the detection unit to determine guidance to be provided to an operator based on the combination of detection signals, and includes a memory and a controller. The operation indicator is connected to the control unit to indicate the identified operation to the operator.Type: ApplicationFiled: November 16, 2012Publication date: May 30, 2013Inventors: Mami AKIYAMA, Yasuhiro SAGAWA, Masaharu FURUYA, Manabu IZUMIKAWA, Mikio ISHIBASHI, Yoshio HATTORI, So OHTA, Ryo TAKENAKA, Hiroaki MURAKAMI
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Patent number: 7992858Abstract: A disclosed sheet conveying apparatus includes a first conveying unit configured to convey a sheet in a first sheet conveying direction; and a second conveying unit arranged on a downstream side of the first conveying unit in the first sheet conveying direction and configured to convey the sheet conveyed by the first conveying unit in a second sheet conveying direction different from the first sheet conveying direction. At least the second conveying unit acts as a holding/conveying unit with a holding section to hold and convey the sheet and includes a moving/guiding unit arranged along an outer side of a sheet conveying path extending between the first conveying unit and the second conveying unit. The moving/guiding unit moves/guides the sheet toward the holding section of the second conveying unit, and is arranged in a discontinuous manner along a sheet width direction orthogonal to the first sheet conveying direction so as to contact at least one part of the sheet in the sheet width direction.Type: GrantFiled: April 12, 2007Date of Patent: August 9, 2011Assignee: Ricoh Company, Ltd.Inventors: Yasuhiro Sagawa, Kenji Ueda, Masayuki Ueda, Hiroyuki Watase, Naoyuki Okamoto, Yoshikuni Ishikawa, Hiroshi Kajiyama, Tamiya Akimoto
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Publication number: 20110175282Abstract: A sheet adjusting device, applicable to a sheet holding receptacle and an image forming apparatus, includes a sheet setting plate to place a sheet thereon, first and second regulating member to slidably move in a given direction, a drive transmission mechanism to transmit a driving power generated by a driving power source to at least one of the first and second regulating members and move the first regulating member in the given direction, and a stopping unit to stop the first regulating member moving toward the sheet on the setting, plate either when a load exceeding a given threshold is given to either the driving power source or the drive transmission mechanism or when a pressure exceeding a given threshold is given to at least one of the first and second regulating members.Type: ApplicationFiled: January 13, 2011Publication date: July 21, 2011Applicant: Ricoh Company, Ltd.Inventors: Yasuhiro Sagawa, Jumpei Aoyama
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Publication number: 20110163496Abstract: A sheet adjusting device, applicable to a sheet holding receptacle and an image forming apparatus, includes a sheet setting plate to place a sheet thereon, first and second regulating member to slidably move in a given direction, and a drive transmission unit to transmit a driving power generated by a driving power source to at least the first regulating member and move the first regulating member in the given direction and to include a torque limiting unit to stop the first regulating member moving on the sheet setting plate by cutting off transmission of the driving power between a driven side transmission roller unit of the torque limiting unit and a driving side transmission roller unit of the torque limiting unit when a torque exceeding a given threshold is applied to the driven side transmission roller unit.Type: ApplicationFiled: January 6, 2011Publication date: July 7, 2011Applicant: Ricoh Company, Ltd.Inventors: Jumpei Aoyama, Yasuhiro Sagawa
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Publication number: 20110163495Abstract: A sheet adjusting device applicable to a sheet holding receptacle, an image forming mechanism, and an image reading mechanism includes a sheet setting plate to place a sheet thereon; first and second regulating member to slidably move in a given direction, and a friction-reducing unit disposed on the sheet setting plate to reduce a frictional force on an underside of the sheet. Alternatively, a sheet adjusting device includes a sheet setting plate, a sheet contact face disposed downstream of the sheet setting plate to cause the leading edge of the sheet abuts against the sheet contact face, first and second regulating member, and a friction-reducing unit disposed on the sheet contact face to reduce a frictional force on the sheet contact face and the leading edge of the sheet.Type: ApplicationFiled: January 6, 2011Publication date: July 7, 2011Applicant: Ricoh Company, Ltd.Inventors: Jumpei Aoyama, Yasuhiro Sagawa
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Patent number: 7887051Abstract: A catch tray for stacking sheets discharged from an apparatus that includes a first sheet-stacking area and a second sheet-stacking area. The tray further includes a first stopper regulation part disposed, within the second sheet-stacking area, on a downstream side of the sheet discharging direction that regulates edges of discharged sheets of a largest size allowed to be stacked on the catch tray and a second stopper regulation part in the first sheet-stacking area that regulates edges of the discharged sheets of a size smaller than the largest size and elastically deforms in the sheet discharging direction when a sheet of the largest size is discharged so as to allow the first stopper regulation part to regulate an edge of the sheet of the largest size.Type: GrantFiled: February 3, 2009Date of Patent: February 15, 2011Assignee: Ricoh Company, Ltd.Inventors: Ryosuke Hirokawa, Yasuhiro Sagawa
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Patent number: 7708276Abstract: An easy-to-use, inexpensive, and small sheet conveying device, which can stably and separately convey not only sheets of a fixed size that are normally used, but also highly rigid sheets and special sheets, and can further separately convey a bent sheet reliably. In a sheet conveying path switching device having a sheet carrying-in path and a switching separating nail, outlines of two separating/conveying paths out of a plurality of separating/conveying paths positioned on a downstream side of the switching separating nail are configured by a movable belt surface, the two separating/conveying paths being located closer to the separating nail than the other separating/conveying paths.Type: GrantFiled: May 29, 2007Date of Patent: May 4, 2010Assignee: Ricoh Company, Ltd.Inventors: Naoyuki Okamoto, Hiroyuki Watase, Masayuki Ueda, Kenji Ueda, Yasuhiro Sagawa, Hiroshi Kajiyama, Yoshikuni Ishikawa
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Patent number: 7621519Abstract: A first conveying unit conveys a sheet. A second conveying unit conveys the sheet conveyed by the first conveying unit in a direction different from a sheet conveying direction of the first conveying unit, and is disposed on a downstream side in the sheet conveying direction of the first conveying unit. A guiding unit reduces a sheet conveying load. The guiding unit is disposed in an outer area of a sheet conveying path formed between the first conveying unit and the second conveying unit.Type: GrantFiled: September 8, 2006Date of Patent: November 24, 2009Assignee: Ricoh Company, LimitedInventors: Yasuhiro Sagawa, Kenji Ueda, Masayuki Ueda, Tamiya Akimoto, Naoyuki Okamoto, Hiroyuki Watase, Yoshikuni Ishikawa, Hiroshi Kajiyama
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Publication number: 20090200730Abstract: A disclosed catch tray for stacking thereon sheets discharged from an apparatus includes a first sheet-stacking area disposed upstream of a sheet discharging direction and having a sloping surface extending upwardly from an upstream side to a downstream side of the sheet discharging direction; a second sheet-stacking area extending from an end of the sloping surface on the downstream side; a first regulation part disposed, within the second sheet-stacking area, on the downstream side of the sheet discharging direction, and configured to regulate edges of the discharged sheets of a largest size allowed to be stacked on the catch tray; and a second regulation part disposed in the first sheet-stacking area, and configured to regulate edges of the discharged sheets of a size smaller than the largest size and elastically deform in the sheet discharging direction when a sheet of the largest size is discharged so as to allow the first regulation part to regulate an edge of the sheet of the largest size.Type: ApplicationFiled: February 3, 2009Publication date: August 13, 2009Inventors: Ryosuke Hirokawa, Yasuhiro Sagawa
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Publication number: 20080038039Abstract: A sheet conveying device, that can be included in an image forming apparatus, includes a first conveying unit to convey a sheet in a first direction, a second conveying unit disposed on a downstream side of the first conveying unit to convey the sheet in a second direction, and a first path formed between the first and second conveying units. At least the second conveying unit has a holding section to hold and convey the sheet. The sheet conveying device further includes a belt conveying unit disposed along an outer side of the first path and includes a belt to convey the sheet toward the holding section. The belt is stretched around a first belt holding and rotating member and a second belt holding and rotating member disposed on an upstream side of the second conveying unit in the second direction.Type: ApplicationFiled: August 10, 2007Publication date: February 14, 2008Inventors: Hiroyuki Watase, Yasuhiro Sagawa, Kenji Ueda, Masayuki Ueda, Naoyuki Okamoto, Hiroshi Kajiyama, Yoshikuni Ishikawa
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Publication number: 20080001350Abstract: An easy-to-use, inexpensive, and small sheet conveying device, which can stably and separately convey not only sheets of a fixed size that are normally used, but also highly rigid sheets and special sheets, and can further separately convey a bent sheet reliably. In a sheet conveying path switching device having a sheet carrying-in path and a switching separating nail, outlines of two separating/conveying paths out of a plurality of separating/conveying paths positioned on a downstream side of the switching separating nail are configured by a movable belt surface, the two separating/conveying paths being located closer to the separating nail than the other separating/conveying paths.Type: ApplicationFiled: May 29, 2007Publication date: January 3, 2008Inventors: Naoyuki Okamoto, Hiroyuki Watase, Masayuki Ueda, Kenji Ueda, Yasuhiro Sagawa, Hiroshi Kajiyama, Yoshikuni Ishikawa
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Publication number: 20070246879Abstract: A disclosed sheet conveying apparatus includes a first conveying unit configured to convey a sheet in a first sheet conveying direction; and a second conveying unit arranged on a downstream side of the first conveying unit in the first sheet conveying direction and configured to convey the sheet conveyed by the first conveying unit in a second sheet conveying direction different from the first sheet conveying direction. At least the second conveying unit acts as a holding/conveying unit with a holding section to hold and convey the sheet and includes a moving/guiding unit arranged along an outer side of a sheet conveying path extending between the first conveying unit and the second conveying unit. The moving/guiding unit moves/guides the sheet toward the holding section of the second conveying unit, and is arranged in a discontinuous manner along a sheet width direction orthogonal to the first sheet conveying direction so as to contact at least one part of the sheet in the sheet width direction.Type: ApplicationFiled: April 12, 2007Publication date: October 25, 2007Inventors: Yasuhiro Sagawa, Kenji Ueda, Masayuki Ueda, Hiroyuki Watase, Naoyuki Okamoto, Yoshikuni Ishikawa, Hiroshi Kajiyama, Tamiya Akimoto
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Publication number: 20070057444Abstract: A first conveying unit conveys a sheet. A second conveying unit conveys the sheet conveyed by the first conveying unit in a direction different from a sheet conveying direction of the first conveying unit, and is disposed on a downstream side in the sheet conveying direction of the first conveying unit. A guiding unit reduces a sheet conveying load. The guiding unit is disposed in an outer area of a sheet conveying path formed between the first conveying unit and the second conveying unit.Type: ApplicationFiled: September 8, 2006Publication date: March 15, 2007Inventors: Yasuhiro Sagawa, Kenji Ueda, Masayuki Ueda, Tamiya Akimoto, Naoyuki Okamoto, Hiroyuki Watase, Yoshikuni Ishikawa, Hiroshi Kajiyama