Patents by Inventor Hisanori Kobayashi
Hisanori Kobayashi 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: 20240111225Abstract: A rotatable polygon mirror includes a plurality of reflecting surfaces provided in parallel to a rotational axis direction, first surface and second surface of polygonal shape perpendicular to the plurality of reflecting surface and of which each side is continued to the plurality of reflecting surfaces. The second surface is opposite to the first surface. A through hole penetrates though the first and second surfaces in parallel to the rotational axis direction and to engage with a rotational shaft of a driving portion. As seen in the rotational axis direction, the through hole has substantially similar shape to the polygonal shape of the first and the second surfaces, and vertexes of the similar shape of the through hole are different in phase from apexes of the polygonal shape of the first and second surfaces with respect to a rotational direction of the polygon mirror.Type: ApplicationFiled: September 5, 2023Publication date: April 4, 2024Inventors: HISANORI KOBAYASHI, YOSHIHIKO TANAKA, Takatoshi Tanaka, NAOKI MATSUSHITA
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Patent number: 11852988Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.Type: GrantFiled: May 5, 2022Date of Patent: December 26, 2023Assignee: Canon Kabushiki KaishaInventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota
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Publication number: 20230405730Abstract: An inspection system for a welded portion in welding includes a display unit, an acquisition unit that acquires a reference position of a welded portion stored in the storage device, a display control unit that displays, on the display unit, a reference position image that is an image showing a reference position virtually superimposed on an image of an object to be welded in a real space captured by the imaging device and includes a welded portion, and a distance calculation unit that calculates a distance in the real space between the welded portion in the real space displayed on the display unit and the reference position of the welded portion.Type: ApplicationFiled: March 21, 2023Publication date: December 21, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryoji KUMAGAI, Yusuke MATSUOKA, Hisanori KOBAYASHI
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Patent number: 11835880Abstract: A rotatable polygon mirror including a plurality of reflecting surfaces includes first and second surfaces connecting to the reflecting surfaces provided on opposite ends, first and second protrusion portions with an annular shape, provided on the first and second surfaces and protruding inversely to each other in the rotational axis direction, about a rotational axis of the rotatable polygon mirror. A height of a top surface portion of the first protrusion portion from the first surface is higher than that of a top surface portion of the second protrusion portion from the second surface with respect to the rotational axis direction. In a case that the rotatable polygon mirrors are stacked in the rotational axis direction, a wall of an inner peripheral side of the first protrusion portion and a wall of an outer peripheral side of the second protrusion portion are engaged with each other.Type: GrantFiled: May 20, 2022Date of Patent: December 5, 2023Assignee: Canon Kabushiki KaishaInventors: Hisanori Kobayashi, Takatoshi Tanaka
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Publication number: 20220373925Abstract: A rotatable polygon mirror including a plurality of reflecting surfaces includes first and second surfaces connecting to the reflecting surfaces provided on opposite ends, first and second protrusion portions with an annular shape, provided on the first and second surfaces and protruding inversely to each other in the rotational axis direction, about a rotational axis of the rotatable polygon mirror. A height of a top surface portion of the first protrusion portion from the first surface is higher than that of a top surface portion of the second protrusion portion from the second surface with respect to the rotational axis direction. In a case that the rotatable polygon mirrors are stacked in the rotational axis direction, a wall of an inner peripheral side of the first protrusion portion and a wall of an outer peripheral side of the second protrusion portion are engaged with each other.Type: ApplicationFiled: May 20, 2022Publication date: November 24, 2022Inventors: Hisanori Kobayashi, Takatoshi Tanaka
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Publication number: 20220260938Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.Type: ApplicationFiled: May 5, 2022Publication date: August 18, 2022Inventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota
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Patent number: 11385457Abstract: In an optical scanning device, an outer wall closest to a circumscribed circle of a rotating polygon mirror has a space in a position facing to a position of a reflection surface of the rotating polygon mirror in an axial direction of a rotating shaft. A part of a cover is provided in a position farther from the circumscribed circle than the outer wall so as to close the space, when the optical scanning device is viewed in a direction perpendicular to the axial direction of the rotating shaft.Type: GrantFiled: September 9, 2020Date of Patent: July 12, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Yoshihiko Tanaka, Hisanori Kobayashi, Naoki Matsushita, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama
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Patent number: 11353805Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.Type: GrantFiled: May 3, 2021Date of Patent: June 7, 2022Assignee: Canon Kabushiki KaishaInventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota
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Patent number: 11249303Abstract: A rotary polygon mirror has no recess in a thickness region of one of the reflecting surfaces of the rotary polygon mirror in the direction of the rotation axis of the rotary polygon mirror and has a protruding portion protruding from the thickness region in a direction away from the thickness region.Type: GrantFiled: July 27, 2020Date of Patent: February 15, 2022Assignee: Canon Kabushiki KaishaInventors: Hisanori Kobayashi, Yoshihiko Tanaka, Naoki Matsushita, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama
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Publication number: 20210255562Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.Type: ApplicationFiled: May 3, 2021Publication date: August 19, 2021Inventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota
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Patent number: 11086248Abstract: An image forming apparatus for forming an image on a recording material includes a photosensitive member; an optical scanning unit including a light source, an optical box, and a cover; and a fan. The fan is provided so that air from the fan directly impinges on the cover of the optical scanning unit. As seen in a direction perpendicular to a rotational axis of the rotatable polygonal mirror, a rib extending from a top plate of the cover toward an optical box side is provided at a portion of the cover in the neighborhood of a light beam emitting port of the optical scanning unit. The cover is provided with an extended portion extended from the rib in a light beam emitting direction.Type: GrantFiled: July 27, 2020Date of Patent: August 10, 2021Assignee: Canon Kabushiki KaishaInventors: Mitsuhiro Ohta, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Naoki Matsushita, Hiroki Katayama
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Patent number: 11022908Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.Type: GrantFiled: October 26, 2020Date of Patent: June 1, 2021Assignee: Canon Kabushiki KaishaInventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota
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Publication number: 20210132521Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.Type: ApplicationFiled: October 26, 2020Publication date: May 6, 2021Inventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota
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Publication number: 20210080712Abstract: In an optical scanning device, an outer wall closest to a circumscribed circle of a rotating polygon mirror has a space in a position facing to a position of a reflection surface of the rotating polygon mirror in an axial direction of a rotating shaft. A part of a cover is provided in a position farther from the circumscribed circle than the outer wall so as to close the space, when the optical scanning device is viewed in a direction perpendicular to the axial direction of the rotating shaft.Type: ApplicationFiled: September 9, 2020Publication date: March 18, 2021Inventors: Yoshihiko Tanaka, Hisanori Kobayashi, Naoki Matsushita, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama
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Publication number: 20210041801Abstract: An image forming apparatus for forming an image on a recording material includes a photosensitive member; an optical scanning unit including a light source, an optical box, and a cover; and a fan. The fan is provided so that air from the fan directly impinges on the cover of the optical scanning unit. As seen in a direction perpendicular to a rotational axis of the rotatable polygonal mirror, a rib extending from a top plate of the cover toward an optical box side is provided at a portion of the cover in the neighborhood of a light beam emitting port of the optical scanning unit. The cover is provided with an extended portion extended from the rib in a light beam emitting direction.Type: ApplicationFiled: July 27, 2020Publication date: February 11, 2021Inventors: Mitsuhiro Ohta, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Naoki Matsushita, Hiroki Katayama
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Publication number: 20210033851Abstract: A rotary polygon mirror has no recess in a thickness region of one of the reflecting surfaces of the rotary polygon mirror in the direction of the rotation axis of the rotary polygon mirror and has a protruding portion protruding from the thickness region in a direction away from the thickness region.Type: ApplicationFiled: July 27, 2020Publication date: February 4, 2021Inventors: Hisanori Kobayashi, Yoshihiko Tanaka, Naoki Matsushita, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama
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Patent number: 10900524Abstract: A sealing member of a bearing device for vehicle wheel including: a sealing plate having a sealing plate fitting section (7a) fitted to an inner circumferential surface of an outer ring, an annular support section (7c) extending radially inwardly from the sealing plate fitting section, and sealing lips provided on one side surface of the support section; and a slinger (8) having a slinger fitting section (8a) fitted to the outer circumferential surface of an inner ring (4) and an annular upright plate section (8b) extending radially outwardly from the slinger fitting section and facing the support section. The plurality of sealing lips are in contact with one side surface of the upright plate section or with the slinger fitting section, the support section is bent to form an annular groove section, and the outer peripheral portion of the upright plate section is bent to form a cylindrical wall section.Type: GrantFiled: September 14, 2018Date of Patent: January 26, 2021Assignee: NTN CORPORATIONInventors: Makoto Seki, Hisanori Kobayashi
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Patent number: 10773549Abstract: A bearing device 1 for a vehicle wheel, wherein an annular weir part 20 is provided on the outer periphery of an outer-side end part of an outer member 2, the annular weir part 20 having the rotation axis L of an inner member 3 as a center, the weir part 20 having a shape that is asymmetrical between the upper side Us and the lower side Ls of the outer member 2, and the weir part 20 being inclined farther toward the inner side the more a weir wall surface 20a faces outward in the radial direction in a part or all of the upper side Us. Also, the weir part 20 is inclined farther toward the outer side the more the weir wall surface 20a faces outward in the radial direction in a part or all of the lower side Ls.Type: GrantFiled: September 11, 2017Date of Patent: September 15, 2020Assignee: NTN CORPORATIONInventors: Hisanori Kobayashi, Xiaole Bao, Yuta Nakatsuji, Akira Torii
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Publication number: 20200277993Abstract: A sealing member of a bearing device for vehicle wheel including: a sealing plate having a sealing plate fitting section (7a) fitted to an inner circumferential surface of an outer ring, an annular support section (7c) extending radially inwardly from the sealing plate fitting section, and sealing lips provided on one side surface of the support section; and a slinger (8) having a slinger fitting section (8a) fitted to the outer circumferential surface of an inner ring (4) and an annular upright plate section (8b) extending radially outwardly from the slinger fitting section and facing the support section. The plurality of sealing lips are in contact with one side surface of the upright plate section or with the slinger fitting section, the support section is bent to form an annular groove section, and the outer peripheral portion of the upright plate section is bent to form a cylindrical wall section.Type: ApplicationFiled: September 14, 2018Publication date: September 3, 2020Inventors: Makoto SEKI, Hisanori KOBAYASHI
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Publication number: 20190299710Abstract: A bearing device 1 for a vehicle wheel, wherein an annular weir part 20 is provided on the outer periphery of an outer-side end part of an outer member 2, the annular weir part 20 having the rotation axis L of an inner member 3 as a center, the weir part 20 having a shape that is asymmetrical between the upper side Us and the lower side Ls of the outer member 2, and the weir part 20 being inclined farther toward the inner side the more a weir wall surface 20a faces outward in the radial direction in a part or all of the upper side Us. Also, the weir part 20 is inclined farther toward the outer side the more the weir wall surface 20a faces outward in the radial direction in a part or all of the lower side Ls.Type: ApplicationFiled: September 11, 2017Publication date: October 3, 2019Inventors: Hisanori KOBAYASHI, Xiaole BAO, Yuta NAKATSUJI, Akira TORII