Patents by Inventor Mitsuharu Yoshimoto
Mitsuharu Yoshimoto 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: 20160150098Abstract: An image forming apparatus includes an image reading unit, an image forming unit, a discharge unit, and a discharge tray. The image reading unit is configured to read a document placed on a document placement table by moving and scanning of a scanning body in a sub-scanning direction. The image forming unit is configured to form an image read by the image reading unit on a paper sheet. The discharge unit is configured to discharge the paper sheet on which an image is formed by the image forming unit to a direction perpendicular to the sub-scanning direction. The discharge tray is on which the paper sheet from the discharge unit is to be placed with a space portion at a lower side of the image reading unit. A bottom surface of a housing of the image reading unit facing the discharge tray is constituted of a first surface and a second surface. The first surface is a surface at a front side of the discharge unit in a discharging direction and high with respect to the discharge tray.Type: ApplicationFiled: February 2, 2016Publication date: May 26, 2016Inventors: Kenji NAKANISHI, Masahiro IMOTO, Yasuhiro SUTO, Shohichi FUKUTOME, Hisashi YAMANAKA, Mitsuharu YOSHIMOTO
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Patent number: 9280119Abstract: An image forming apparatus includes an image reading unit, an image forming unit, a discharge unit, and a discharge tray. The image reading unit is configured to read a document placed on a document placement table by moving and scanning of a scanning body in a sub-scanning direction. The image forming unit is configured to form an image read by the image reading unit on a paper sheet. The discharge unit is configured to discharge the paper sheet on which an image is formed by the image forming unit to a direction perpendicular to the sub-scanning direction. The discharge tray is on which the paper sheet from the discharge unit is to be placed with a space portion at a lower side of the image reading unit. A bottom surface of a housing of the image reading unit facing the discharge tray is constituted of a first surface and a second surface. The first surface is a surface at a front side of the discharge unit in a discharging direction and high with respect to the discharge tray.Type: GrantFiled: April 5, 2013Date of Patent: March 8, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Kenji Nakanishi, Masahiro Imoto, Yasuhiro Suto, Shohichi Fukutome, Hisashi Yamanaka, Mitsuharu Yoshimoto
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Publication number: 20150369998Abstract: An illuminating device capable of stably illuminating an irradiated object such as a document while suppressing light loss with a simply structure is provided. An LED array and a reflective plate are disposed sandwiching a slit (St) through which light reflected by a document MS passes and a light-guiding member is disposed on the side of the LED array. The light-guiding member includes a direct emission unit disposed between an illumination range y centered on a document reading position and the LED array and an indirect emission unit disposed between the reflective plate and the LED array, a light incidence face of the direct emission unit and a light incidence face of the indirect emission unit are disposed at mutually different position around the LED array, and the LED array is disposed on a side of an interior angle formed by the light incidence faces.Type: ApplicationFiled: June 25, 2015Publication date: December 24, 2015Applicant: SHARP KABUSHIKI KAISHAInventors: Yasuhiro SUTO, Mitsuharu YOSHIMOTO, Tomohiko OKADA, Hisashi YAMANAKA, Shohichi FUKUTOME, Kenji NAKANISHI
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Patent number: 9106782Abstract: An image reader is provided, in its housing, with a first scanning unit made up of an LED array of a plurality of LED elements that are arranged in a row in the horizontal scanning direction and that emit light to a document. An air intake port and an air exhaust port are disposed on the housing of the image reader. An imaginary line of an air flow path coupling the air intake port and the air exhaust port to one another is configured to pass adjacent a center of the LED array of the first scanning unit in the horizontal scanning direction with the first scanning unit stopped at a reading position of the document transferred by a document transfer device.Type: GrantFiled: October 9, 2014Date of Patent: August 11, 2015Assignee: SHARP KABUSHIKI KAISHAInventors: Hisashi Yamanaka, Mitsuharu Yoshimoto, Kenji Nakanishi, Yasuhiro Suto, Shohichi Fukutome, Masahiro Imoto
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Patent number: 9097830Abstract: An illuminating device capable of stably illuminating an irradiated object such as a document while suppressing light loss with a simply structure is provided. An LED array and a reflective plate are disposed sandwiching a slit (St) through which light reflected by a document MS passes and a light-guiding member is disposed on the side of the LED array. The light-guiding member includes a direct emission unit disposed between an illumination range y centered on a document reading position and the LED array and an indirect emission unit disposed between the reflective plate and the LED array, a light incidence face of the direct emission unit and a light incidence face of the indirect emission unit are disposed at mutually different position around the LED array, and the LED array is disposed on a side of an interior angle formed by the light incidence faces.Type: GrantFiled: May 30, 2014Date of Patent: August 4, 2015Assignee: SHARP KABUSHIKI KAISHAInventors: Yasuhiro Suto, Mitsuharu Yoshimoto, Tomohiko Okada, Hisashi Yamanaka, Shohichi Fukutome, Kenji Nakanishi
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Publication number: 20150098744Abstract: An image forming apparatus includes an image reading unit, an image forming unit, a discharge unit, and a discharge tray. The image reading unit is configured to read a document placed on a document placement table by moving and scanning of a scanning body in a sub-scanning direction. The image forming unit is configured to form an image read by the image reading unit on a paper sheet. The discharge unit is configured to discharge the paper sheet on which an image is formed by the image forming unit to a direction perpendicular to the sub-scanning direction. The discharge tray is on which the paper sheet from the discharge unit is to be placed with a space portion at a lower side of the image reading unit. A bottom surface of a housing of the image reading unit facing the discharge tray is constituted of a first surface and a second surface. The first surface is a surface at a front side of the discharge unit in a discharging direction and high with respect to the discharge tray.Type: ApplicationFiled: April 5, 2013Publication date: April 9, 2015Inventors: Kenji Nakanishi, Masahiro Imoto, Yasuhiro Suto, Shohichi Fukutome, Hisashi Yamanaka, Mitsuharu Yoshimoto
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Patent number: 8964264Abstract: An illuminating device capable of stably illuminating an irradiated object such as a document while suppressing light loss with a simply structure is provided. An LED array (71) and a reflective plate (73) are disposed sandwiching a slit (St) through which light reflected by a document MS passes and a light-guiding member (72) is disposed on the side of the LED array (71). The light-guiding member (72) includes a direct emission unit (77) disposed between an illumination range y centered on a document reading position and the LED array (71) and an indirect emission unit (78) disposed between the reflective plate (73) and the LED array (71), a light incidence face of the direct emission unit (77) and a light incidence face of the indirect emission unit (78) are disposed at mutually different position around the LED array (71), and the LED array (71) is disposed on a side of an interior angle formed by the light incidence faces.Type: GrantFiled: May 5, 2014Date of Patent: February 24, 2015Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Suto, Mitsuharu Yoshimoto, Tomohiko Okada, Hisashi Yamanaka, Shohichi Fukutome, Kenji Nakanishi
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Publication number: 20150022843Abstract: An image reader is provided, in its housing, with a first scanning unit made up of an LED array of a plurality of LED elements that are arranged in a row in the horizontal scanning direction and that emit light to a document. An air intake port and an air exhaust port are disposed on the housing of the image reader. An imaginary line of an air flow path coupling the air intake port and the air exhaust port to one another is configured to pass adjacent a center of the LED array of the first scanning unit in the horizontal scanning direction with the first scanning unit stopped at a reading position of the document transferred by a document transfer device.Type: ApplicationFiled: October 9, 2014Publication date: January 22, 2015Inventors: HISASHI YAMANAKA, MITSUHARU YOSHIMOTO, KENJI NAKANISHI, YASUHIRO SUTO, SHOHICHI FUKUTOME, MASAHIRO IMOTO
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Patent number: 8897667Abstract: An image reader is provided, in its housing, with a first scanning unit made up of an LED array of a plurality of LED elements that are arranged in a row in the horizontal scanning direction and that emit light to a document. An air intake port and an air exhaust port are disposed on the housing of the image reader. An imaginary line of an air flow path coupling the air intake port and the air exhaust port to one another is configured to pass adjacent a center of the LED array of the first scanning unit in the horizontal scanning direction with the first scanning unit stopped at a reading position of the document transferred by a document transfer device.Type: GrantFiled: October 26, 2012Date of Patent: November 25, 2014Assignee: Sharp Kabushiki KaishaInventors: Hisashi Yamanaka, Mitsuharu Yoshimoto, Kenji Nakanishi, Yasuhiro Suto, Shohichi Fukutome, Masahiro Imoto
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Publication number: 20140285857Abstract: An illuminating device (210) according to an embodiment of the invention included in an image reading apparatus (100) and an image forming apparatus (D) includes light source portions (211a1), (211b1), (211a2) and (211b2), light-guiding members (213a) and (213b) for illuminating an illumination target (G) from an elongated light emitting face (M) that extends in a longitudinal direction (Y), by guiding light from the light source portions, and holding members (216a) and (216b) for holding the light-guiding members. The holding members include holding portions (2161a) and (2161b) for removably holding the light-guiding members, and tilted portions (2162a) and (2162b) that reflect light emitted from the light emitting face (M), the tilted portions extending from a front end on the light emitting face (M) side of the holding portions, obliquely widening with increasing distance from the light-guiding members.Type: ApplicationFiled: June 6, 2014Publication date: September 25, 2014Inventors: Yoshihisa YAMADA, Mitsuharu YOSHIMOTO, Yasuhiro SUTO, Kenji NAKANISHI, Shohichi FUKUTOME, Hisashi YAMANAKA
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Publication number: 20140286046Abstract: An illuminating device capable of stably illuminating an irradiated object such as a document while suppressing light loss with a simply structure is provided. An LED array and a reflective plate are disposed sandwiching a slit (St) through which light reflected by a document MS passes and a light-guiding member is disposed on the side of the LED array. The light-guiding member includes a direct emission unit disposed between an illumination range y centered on a document reading position and the LED array and an indirect emission unit disposed between the reflective plate and the LED array, a light incidence face of the direct emission unit and a light incidence face of the indirect emission unit are disposed at mutually different position around the LED array, and the LED array is disposed on a side of an interior angle formed by the light incidence faces.Type: ApplicationFiled: May 30, 2014Publication date: September 25, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Yasuhiro SUTO, Mitsuharu YOSHIMOTO, Tomohiko OKADA, Hisashi YAMANAKA, Shohichi FUKUTOME, Kenji NAKANISHI
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Publication number: 20140240797Abstract: An illuminating device capable of stably illuminating an irradiated object such as a document while suppressing light loss with a simply structure is provided. An LED array (71) and a reflective plate (73) are disposed sandwiching a slit (St) through which light reflected by a document MS passes and a light-guiding member (72) is disposed on the side of the LED array (71). The light-guiding member (72) includes a direct emission unit (77) disposed between an illumination range y centered on a document reading position and the LED array (71) and an indirect emission unit (78) disposed between the reflective plate (73) and the LED array (71), a light incidence face of the direct emission unit (77) and a light incidence face of the indirect emission unit (78) are disposed at mutually different position around the LED array (71), and the LED array (71) is disposed on a side of an interior angle formed by the light incidence faces.Type: ApplicationFiled: May 5, 2014Publication date: August 28, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Yasuhiro SUTO, Mitsuharu YOSHIMOTO, Tomohiko OKADA, Hisashi YAMANAKA, Shohichi FUKUTOME, Kenji NAKANISHI
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Patent number: 8787799Abstract: An illuminating device (210) according to an embodiment of the invention included in an image reading apparatus (100) and an image forming apparatus (D) includes light source portions (211a1), (211b1), (211a2) and (211b2), light-guiding members (213a) and (213b) for illuminating an illumination target (G) from an elongated light emitting face (M) that extends in a longitudinal direction (Y), by guiding light from the light source portions, and holding members (216a) and (216b) for holding the light-guiding members. The holding members include holding portions (2161a) and (2161b) for removably holding the light-guiding members, and tilted portions (2162a) and (2162b) that reflect light emitted from the light emitting face (M), the tilted portions extending from a front end on the light emitting face (M) side of the holding portions, obliquely widening with increasing distance from the light-guiding members.Type: GrantFiled: October 9, 2009Date of Patent: July 22, 2014Assignee: Sharp Kabushiki KaishaInventors: Yoshihisa Yamada, Mitsuharu Yoshimoto, Yasuhiro Suto, Kenji Nakanishi, Shohichi Fukutome, Hisashi Yamanaka
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Patent number: 8755095Abstract: An illuminating device capable of stably illuminating an irradiated object such as a document while suppressing light loss with a simply structure is provided. An LED array (71) and a reflective plate (73) are disposed sandwiching a slit (St) through which light reflected by a document MS passes and a light-guiding member (72) is disposed on the side of the LED array (71). The light-guiding member (72) includes a direct emission unit (77) disposed between an illumination range y centered on a document reading position and the LED array (71) and an indirect emission unit (78) disposed between the reflective plate (73) and the LED array (71), a light incidence face of the direct emission unit (77) and a light incidence face of the indirect emission unit (78) are disposed at mutually different position around the LED array (71), and the LED array (71) is disposed on a side of an interior angle formed by the light incidence faces.Type: GrantFiled: October 15, 2010Date of Patent: June 17, 2014Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Suto, Mitsuharu Yoshimoto, Tomohiko Okada, Hisashi Yamanaka, Shohichi Fukutome, Kenji Nakanishi
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Patent number: 8665503Abstract: A document reading section includes a document load table, a document load tray, a first document receiving tray, a linear conveyance path, a first guide member and a first reading section. The linear conveyance path, inclining downward from the document load tray, reaches the first document receiving tray. The first guide member is disposed in the linear conveyance path, and its top surface inclines downward along the linear conveyance path toward a downstream side in a document conveying direction in relation to the document load table. The first guide member is disposed in such a manner that part of its top surface intersects with a plane containing a top surface of the document load table.Type: GrantFiled: August 1, 2011Date of Patent: March 4, 2014Assignee: Sharp Kabushiki KaishaInventors: Mitsuharu Yoshimoto, Yasuhiro Suto, Shohichi Fukutome, Kenji Nakanishi, Hisashi Yamanaka, Sohichi Takata
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Patent number: 8625170Abstract: The present invention provides an illuminating device including a plurality of light-emitting elements arranged in a line, the illuminating device illuminates an irradiation target by irradiating the irradiation target with light that is emitted from the light-emitting elements via a first and a second optical paths. In the illuminating device, a light diffusing portion for diffusing light is provided in one of the first optical path and the second optical path, and an irradiation light amount of said one of the first optical path and the second optical path in which the light diffusing portion is provided is larger than an irradiation light amount of the other optical path.Type: GrantFiled: February 7, 2011Date of Patent: January 7, 2014Assignee: Sharp Kabushiki KaishaInventors: Masahiro Imoto, Mitsuharu Yoshimoto, Yasuhiro Suto, Shohichi Fukutome, Kenji Nakanishi, Hisashi Yamanaka, Yoshihisa Yamada
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Patent number: 8619339Abstract: An image reading apparatus includes a reading glass, a second guide member, and a control section. The reading glass and the second guide member together form a document feed path. The second guide member includes a white reference plate. The control section performs, when it is determined that shading correction image data is affected by a stain, a stain location determination of whether the stain is attached to the reading glass or the second guide member according to a tone value variation in the portion of the shading correction image data that corresponds to the stain edge, the variation being along a predetermined distance in the main scanning direction.Type: GrantFiled: January 19, 2011Date of Patent: December 31, 2013Assignee: Sharp Kabushiki KaishaInventors: Shohichi Fukutome, Hironori Ogasawara, Mitsuharu Yoshimoto, Kenji Nakanishi, Masahiro Imoto, Yasuhiro Suto
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Patent number: 8599447Abstract: In a light source unit (210) serving as an embodiment of an illuminating apparatus, when P is a light-emitting element pitch [mm], and H is an optical axis distance [mm] between light-emitting elements (212) and an original (G), and when, in an illuminance cycle (T) representing repetition of bright and dark areas in a main scanning direction (X) on a light-irradiated face (Gs) of the original (G) caused by the light-emitting elements (212), the light-emitting element pitch (P) and the optical axis distance (H) are set such that unevenness [%] (M) (=(L1?L2)/L3 [%]) obtained by dividing a value obtained by subtracting a minimum illuminance value (L2) from a maximum illuminance value (L1) by an average illuminance value (L3) and an inter-unevenness distance [mm] (N) which is a half cycle of the illuminance cycle (T) satisfy the relation M?N/2?5.5, and more preferably, M?N/2?7.5.Type: GrantFiled: December 18, 2009Date of Patent: December 3, 2013Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Suto, Tomohiko Okada, Shohichi Fukutome, Hisashi Yamanaka, Kenji Nakanishi, Yoshihisa Yamada, Mitsuharu Yoshimoto, Eiji Kurimoto, Keiji Sakai
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Patent number: 8564859Abstract: An image reading apparatus comprises: an image reading unit that includes a platen glass and a color contact image sensor configured by a line image sensor for reading red, a line image sensor for reading green, and a line image sensor for reading blue, the line image sensors being disposed in a sub-scanning direction of an original; and an automatic original feeder. In the image reading apparatus, the line image sensor for reading red and the line image sensor for reading green are disposed so that a line gap therebetween is two lines, and in a monochrome mode in which a color original is read and output as a monochrome image, the color original is read using the line image sensor for reading red and the line image sensor for reading green.Type: GrantFiled: January 28, 2010Date of Patent: October 22, 2013Assignee: Sharp Kabushiki KaishaInventors: Mitsuharu Yoshimoto, Kenji Tanaka, Kenji Nakanishi, Shohichi Fukutome
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Patent number: 8515313Abstract: An illuminating device includes a light-emitting element that is mounted on a base material and a light-guiding member that guides light from the light-emitting element to an irradiation target, and illuminates the irradiation target with the light transmitted through the light-guiding member. The light-guiding member includes an extending portion that extends from the surface of the base material on which the light-emitting element is mounted to a left side end portion of the base material so as to cover the left side end portion. An image-reading includes this illuminating device. Image-forming apparatus includes this image-reading apparatus.Type: GrantFiled: December 29, 2010Date of Patent: August 20, 2013Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Suto, Tomohiko Okada, Mitsuharu Yoshimoto, Shohichi Fukutome, Kenji Nakanishi, Hisashi Yamanaka