Patents by Inventor Kosaku YAMAGATA
Kosaku YAMAGATA 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: 11956397Abstract: An image reading device includes a lens array including lenses arranged in a main scanning direction and forming an erect unmagnified optical system to converge light from a reading target, a holder holding the lens array, a light receiver to receive the light converged by the lenses, and slit units. Each slit unit includes three or more light shielding plates each separating an optical path of one lens from an optical path of another lens between the lens array and the light receiver, and side plates disposed on two sides of the light shielding plates in a direction intersecting the main scanning direction and connecting two adjacent light shielding plates. The slit units are arranged in the main scanning direction, and each two adjacent slit units are arranged with a space therebetween for one optical path of one lens.Type: GrantFiled: March 26, 2021Date of Patent: April 9, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Toshiyuki Sawabe, Kosaku Yamagata, Hironobu Arimoto, Sadaaki Yoshioka, Takashi Maekawa
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Patent number: 11647141Abstract: There are provided a line sensor (110) including two first sensor pixel rows (111a, 111b) and a second sensor pixel row (112a); an image obtaining unit (140) to obtain, from electrical signals obtained by scanning an original in a sub-scanning direction with the two first sensor pixel rows (111a, 111b), two first read image data items, and obtain, from electrical signals obtained by scanning the original in the sub-scanning direction with the second sensor pixel row (112a), a second read image data item; and an image processor (150) to incorporate one or more pixel data items of one or more pixels included in an interval between the two first sensor pixel rows (111a, 111b) out of the second read image data item into the two first read image data items, thereby generating a line image data item in which the one or more pixels in the interval are not vacant.Type: GrantFiled: January 31, 2020Date of Patent: May 9, 2023Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Miki Sugano, Masako Asamura, Kohei Kurihara, Kosaku Yamagata
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Publication number: 20230108017Abstract: An image reading device includes a lens array including lenses arranged in a main scanning direction and forming an erect unmagnified optical system to converge light from a reading target, a holder holding the lens array, a light receiver to receive the light converged by the lenses, and slit units. Each slit unit includes three or more light shielding plates each separating an optical path of one lens from an optical path of another lens between the lens array and the light receiver, and side plates disposed on two sides of the light shielding plates in a direction intersecting the main scanning direction and connecting two adjacent light shielding plates. The slit units are arranged in the main scanning direction, and each two adjacent slit units are arranged with a space therebetween for one optical path of one lens.Type: ApplicationFiled: March 26, 2021Publication date: April 6, 2023Applicant: Mitsubishi Electric CorporationInventors: Toshiyuki SAWABE, Kosaku YAMAGATA, Hironobu ARIMOTO, Sadaaki YOSHIOKA, Takashi MAEKAWA
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Publication number: 20230034290Abstract: There are provided a line sensor (110) including two first sensor pixel rows (11a, 111b) and a second sensor pixel row (112a); an image obtaining unit (140) to obtain, from electrical signals obtained by scanning an original in a sub-scanning direction with the two first sensor pixel rows (111a, 111b), two first read image data items, and obtain, from electrical signals obtained by scanning the original in the sub-scanning direction with the second sensor pixel row (112a), a second read image data item; and an image processor (150) to incorporate one or more pixel data items of one or more pixels included in an interval between the two first sensor pixel rows (111a, 111b) out of the second read image data item into the two first read image data items, thereby generating a line image data item in which the one or more pixels in the interval are not vacant.Type: ApplicationFiled: January 31, 2020Publication date: February 2, 2023Applicant: Mitsubishi Electric CorporationInventors: Miki SUGANO, Masako ASAMURA, Kohei KURIHARA, Kosaku YAMAGATA
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Publication number: 20230025299Abstract: An image-based acceptance learning device (2) learns a result of determination as to whether a planar object (1) is acceptable or defective based on at least one of a three-dimensional shape or a color on a surface of the planar object (1). The device (2) includes a surface image receiver (3) to receive an inputted two-dimensional data being image data of the surface of the planar object (1), a determination information receiver (4) to receive an inputted determination information indicating the result of determination as to whether the planar object (1) corresponding to the two-dimensional data is acceptable or defective, and a learner (5) to learn, based on the two-dimensional data and the determination information, a relevant area (1R) including the three-dimensional shape or the color on the surface in the two-dimensional data. The relevant area is a basis for the determination information.Type: ApplicationFiled: December 15, 2020Publication date: January 26, 2023Applicant: Mitsubishi Electric CorporationInventors: Naoyuki TOKIDA, Atsushi ITO, Yoshihiro AMAMORI, Kosaku YAMAGATA, Kazuya MAKABE
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Publication number: 20220014641Abstract: An image reading device can easily increase or improve the depth of field. The image reading device includes a lens array (1) including lenses (2) arrayed in a main scanning direction, a sensor array (4) including sensor elements (4) arrayed in the main scanning direction to receive light converged by the lenses (2), and an overlap preventer located between the lens array (1) and the sensor array (4) to prevent an overlap of images formed by the lenses (2). The overlap preventer includes a slit assembly (5) including at least one specific-light blocker or optically transparent columns (13).Type: ApplicationFiled: March 18, 2020Publication date: January 13, 2022Applicant: Mitsubishi Electric CorporationInventors: Kosaku YAMAGATA, Hironobu ARIMOTO
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Patent number: 11115549Abstract: For an image sensor that is elongated in a main scanning direction, an image sensor mounting bracket is obtained that suppresses a warp of the image sensor due to the weight thereof. The image sensor mounting bracket includes a fastening element to be fastened to a lateral surface of the image sensor and a fastening element to be fastened to an attachment target object, the fastening element intersecting the image sensor-side fastening element. The fastening element has an image sensor fastening surface abutting the image sensor and having positioning pins, and the attachment target object fastening element has an attachment target object fastening surface abutting the attachment target object and having elongated through holes that elongate in a sub-scanning direction and are arranged in the main scanning direction and the sub-scanning direction.Type: GrantFiled: March 13, 2019Date of Patent: September 7, 2021Assignee: Mitsubishi Electric CorporationInventors: Toshiyuki Sawabe, Kosaku Yamagata
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Publication number: 20200374412Abstract: For an image sensor that is elongated in a main scanning direction, an image sensor mounting bracket is obtained that suppresses a warp of the image sensor due to the weight thereof. The image sensor mounting bracket includes a fastening element to be fastened to a lateral surface of the image sensor and a fastening element to be fastened to an attachment target object, the fastening element intersecting the image sensor-side fastening element. The fastening element has an image sensor fastening surface abutting the image sensor and having positioning pins, and the attachment target object fastening element has an attachment target object fastening surface abutting the attachment target object and having elongated through holes that elongate in a sub-scanning direction and are arranged in the main scanning direction and the sub-scanning direction.Type: ApplicationFiled: March 13, 2019Publication date: November 26, 2020Applicant: Mitsubishi Electric CorporationInventors: Toshiyuki SAWABE, Kosaku YAMAGATA
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Patent number: 10270944Abstract: An image capturing device (1) includes: a microlens array (33) including a plurality of micro condenser lenses (34) arranged at a focal position of an imaging optical system for forming a plurality of erect equal-magnification images; and an imaging unit (31) including light-sensitive pixels (32x) provided at positions corresponding to the micro condenser lenses 34. Micro condenser lenses (34) have refractive powers to condense, among light rays incident from the imaging optical system, light rays incident at an incident angle within a predetermined limited angle range, onto positions different from positions on which light rays incident at an incident angle outside the limited angle range are incident. Effective light-sensitive regions of the light-sensitive pixels (32x) receive only light rays incident at an incident angle within the limited angle range among light rays entered micro condenser lenses (32).Type: GrantFiled: February 28, 2017Date of Patent: April 23, 2019Assignee: Mitsubishi Electric CorporationInventors: Hiroyuki Kawano, Kosaku Yamagata, Tadashi Minobe, Tatsuya Kunieda, Masatoshi Kodama
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Publication number: 20190052776Abstract: An image capturing device (1) includes: a microlens array (33) including a plurality of micro condenser lenses (34) arranged at a focal position of an imaging optical system for forming a plurality of erect equal-magnification images; and an imaging unit (31) including light-sensitive pixels (32x) provided at positions corresponding to the micro condenser lenses 34. Micro condenser lenses (34) have refractive powers to condense, among light rays incident from the imaging optical system, light rays incident at an incident angle within a predetermined limited angle range, onto positions different from positions on which light rays incident at an incident angle outside the limited angle range are incident. Effective light-sensitive regions of the light-sensitive pixels (32x) receive only light rays incident at an incident angle within the limited angle range among light rays entered micro condenser lenses (32).Type: ApplicationFiled: February 28, 2017Publication date: February 14, 2019Applicant: Mitsubishi Electric CorporationInventors: Hiroyuki KAWANO, Kosaku YAMAGATA, Tadashi MINOBE, Tatsuya KUNIEDA, Masatoshi KODAMA
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Patent number: 9936098Abstract: Image processors are provided for respective groups formed by grouping of images, the order of which is sequential when images respectively having overlapping portions corresponding to the same portion of an object are arranged so as to be adjacent to each other, and concurrently perform processing to detect combining-position information for combining an image in a group and an image adjacent to the image without any positional displacement by image-matching. The combining-position information between images belonging to different groups is respectively transferred, via combination-information transferring paths, between the image processors and between the image processors.Type: GrantFiled: January 27, 2016Date of Patent: April 3, 2018Assignee: Mitsubishi Electric CorporationInventors: Kosaku Yamagata, Tadashi Minobe, Satoshi Yamanaka, Masako Asamura, Yoshitaka Toyoda
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Publication number: 20180007232Abstract: Image processors are provided for respective groups formed by grouping of images, the order of which is sequential when images respectively having overlapping portions corresponding to the same portion of an object are arranged so as to be adjacent to each other, and concurrently perform processing to detect combining-position information for combining an image in a group and an image adjacent to the image without any positional displacement by image-matching. The combining-position information between images belonging to different groups is respectively transferred, via combination-information transferring paths, between the image processors and between the image processors.Type: ApplicationFiled: January 27, 2016Publication date: January 4, 2018Applicant: Mitsubishi Electric CorporationInventors: Kosaku YAMAGATA, Tadashi MINOBE, Satoshi YAMANAKA, Masako ASAMURA, Yoshitaka TOYODA
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Patent number: 9641714Abstract: A light guide including a light scattering portion that reflects light guided inside the light guide, and a light emitting surface portion emitting light reflected by the light scattering portion to outside the light guide. A light emitting surface portion includes first and second light emitting surface portions, the first light emitting surface portion has a longer circumferential length than that of the second light emitting surface portion in the transversal cross section, and circumference curvature of the first light emitting surface portion in the transversal cross section increases away from the second light emitting surface portion. A normal line to the light scattering portion, passing through the center of the light scattering portion in the transversal cross section, intersects with the first light emitting surface portion, at a point at a near side to the second light emitting surface portion in the transversal cross section.Type: GrantFiled: February 14, 2014Date of Patent: May 2, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Taku Matsuzawa, Kosaku Yamagata, Tadashi Minobe, Yasuhiro Nakamura, Hiroyuki Kawano
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Publication number: 20160014294Abstract: A light guide including a light scattering portion that reflects light guided inside the light guide, and a light emitting surface portion emitting light reflected by the light scattering portion to outside the light guide. A light emitting surface portion includes first and second light emitting surface portions, the first light emitting surface portion has a longer circumferential length than that of the second light emitting surface portion in the transversal cross section, and circumference curvature of the first light emitting surface portion in the transversal cross section increases away from the second light emitting surface portion. A normal line to the light scattering portion, passing through the center of the light scattering portion in the transversal cross section, intersects with the first light emitting surface portion, at a point at a near side to the second light emitting surface portion in the transversal cross section.Type: ApplicationFiled: February 14, 2014Publication date: January 14, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Taku MATSUZAWA, Kosaku YAMAGATA, Tadashi MINOBE, Yasuhiro NAKAMURA, Hiroyuki KAWANO
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Patent number: D885389Type: GrantFiled: January 5, 2018Date of Patent: May 26, 2020Assignee: Mitsubishi Electric CorporationInventors: Toshiyuki Sawabe, Kosaku Yamagata
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Patent number: D899432Type: GrantFiled: November 4, 2019Date of Patent: October 20, 2020Assignee: Mitsubishi Electric CorporationInventors: Toshiyuki Sawabe, Kosaku Yamagata
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Patent number: D955863Type: GrantFiled: July 12, 2018Date of Patent: June 28, 2022Assignee: Mitsubishi Electric CorporationInventors: Toshiyuki Sawabe, Kosaku Yamagata
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Patent number: D964847Type: GrantFiled: October 1, 2021Date of Patent: September 27, 2022Assignee: Mitsubishi Electric CorporationInventors: Toshiyuki Sawabe, Kosaku Yamagata
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Patent number: D964848Type: GrantFiled: October 1, 2021Date of Patent: September 27, 2022Assignee: Mitsubishi Electric CorporationInventors: Toshiyuki Sawabe, Kosaku Yamagata