Patents by Inventor Yoshiyuki Shimizu
Yoshiyuki Shimizu 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: 8811859Abstract: A developer container includes a container body in which a developer containing chamber and a discharge outlet are formed, a developer conveyance member disposed inside the developer containing chamber and including a first conveyance portion and a second conveyance portion downstream from the first conveyance portion in a developer conveyance director, a canopy disposed inside the container body and facing the discharge outlet, a developer conveyance chamber defined by the canopy and an inner face of the container body in which the discharge outlet is formed, and a return opening formed in the canopy downstream from the discharge outlet. A developer conveyance velocity (Q2) of the second conveyance portion of the developer conveyance member to transports the developer toward the return opening is slower than a developer conveyance velocity (Q1) of the first conveyance portion of the developer conveyance member.Type: GrantFiled: July 20, 2012Date of Patent: August 19, 2014Assignee: Ricoh Company, Ltd.Inventors: Shoh Tsuritani, Masanari Fujita, Yoshiyuki Shimizu, Tomohiro Kubota, Naoki Nakatake
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Publication number: 20140225287Abstract: It is an objective of the present disclosure to prevent or reduce cracks in edge portions of raised portions of a diffractive optical element. A diffractive optical element includes a diffractive surface. The diffractive surface includes a plurality of raised portions. Each of the raised portion has a first surface having a diffraction function, and a second surface extending upright to be connected to the first surface. A tilt angle of the second surface relative to an optical axis varies according to a region in the diffractive surface.Type: ApplicationFiled: April 21, 2014Publication date: August 14, 2014Applicant: PANASONIC CORPORATIONInventors: Yoshiyuki SHIMIZU, Tetsuya SUZUKI, Toshiaki TAKANO, Koji FUJII
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Patent number: 8805214Abstract: An image forming apparatus includes an image bearer, an optical writing unit to writing an electrostatic latent image on the image bearer, the optical writing unit including multiple optical writing elements arranged in a longitudinal direction of the image bearer and a frame to hold the multiple optical writing elements, a development device to develop the electrostatic latent image on the image bearer with developer, a developer container for containing the developer supplied to the development device, and a developer amount detector to detect an amount of developer contained in the developer container based on a light transmission amount between a light-emitting element and a light-receiving element. At least one of the light-emitting element and the light-receiving element of the developer amount detector is attached to the optical writing unit.Type: GrantFiled: February 27, 2012Date of Patent: August 12, 2014Assignee: Ricoh Company, Ltd.Inventors: Masanari Fujita, Kenji Nakamura, Tomohiro Kubota, Yoshiyuki Shimizu, Masato Tsuji, Shoh Tsuritani
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Publication number: 20140208801Abstract: A method for manufacturing a diffractive optical element by pressing a glass material with a molding die in which an inverted shape relative to a shape of a diffractive surface of the diffractive optical element is formed. The method includes: preparing the molding die, a molding surface of the molding die being formed with a plurality of raised portions chamfered at tip ends thereof; and pressing, with the molding die, the glass material into the diffractive optical element in which raised portions and recessed portions are alternately arranged on the diffractive surface and valley bottoms of the recessed portions are formed to have a chamfered shape.Type: ApplicationFiled: April 1, 2014Publication date: July 31, 2014Applicant: Panasonic CorporationInventors: Toshiaki TAKANO, Tetsuya SUZUKI, Yoshiyuki SHIMIZU, Koji FUJII
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Patent number: 8792808Abstract: The developer container includes a rotator that is rotated in the container body, a sequence of gears disposed outside the developer container that transmits a torque to the rotator, and a container guiding portion that fits with a main body side guiding portion and guides the developer container in a direction in which the developer container is attached to a mounting portion of an image forming device main body. A first gear included in the sequence of the gears is movable between an operating position where the first gear engages with a second gear and a retracted position where the first gear is retracted. On a surface on which the container guiding portion is disposed, a part of the container guiding portion is disposed within a projected area of the first gear being disposed at the operating position.Type: GrantFiled: June 3, 2013Date of Patent: July 29, 2014Assignee: Ricoh Company, Ltd.Inventors: Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Manabu Hamada, Masato Tsuji, Masanari Fujita
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Publication number: 20140194725Abstract: An object of the present invention is to perform a more accurate and detailed diagnosis of a brain disease. A diagnosis server 10 of the brain disease diagnosis system 1 for diagnosing a brain disease of an examined person includes: an acquiring unit 11 for acquiring a brain image of the examined person so as to obtain an acquired image; a region setting unit 12 for setting a plurality of regions in the acquired image; an individual index value calculating unit 13 for calculating an individual index value based on a pixel value of the acquired image, in each of the plurality of regions; a whole index value calculating unit 14 for calculating a whole index value by weighting the individual index value of each of the plurality of regions; a diagnosis unit 15 for diagnosing the brain disease of the examined person based on the whole index value; and an output unit 16 for outputting information indicating a diagnosis outcome.Type: ApplicationFiled: March 13, 2014Publication date: July 10, 2014Applicant: Hamamatsu Photonics K.K.Inventors: Akihiro KAKIMOTO, Yoshiyuki SHIMIZU, Tsuyoshi KOSUGI, Hiroyuki OKADA
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Patent number: 8774683Abstract: A development device includes a housing for containing developer, a developer bearer to carry by rotation the developer contained in the housing to a development range position facing a latent image bearer, and developer conveyance device that includes a rotary shaft, a conveyance blade extending axially along the rotary shaft, projecting from the rotary shaft, and extending obliquely to the rotary shaft, to transport developer as the rotary shaft rotates, and a flexible agitation blade provided to the rotary shaft. An axial range of the flexible agitation blade overlaps at least partially with that of the conveyance blade. The flexible agitation blade has a width wider than a width of the conveyance blade and extends beyond an outer edge of the conveyance blade in the direction of diameter of the rotary shaft.Type: GrantFiled: January 17, 2012Date of Patent: July 8, 2014Assignee: Ricoh Company, Ltd.Inventors: Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani
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Patent number: 8768203Abstract: An image forming apparatus includes an exposure device as a light source, a developer container storing developer and attached to a main body of the image forming apparatus perpendicular to a lengthwise direction of the photoconductor, a developing unit and a photoconductor unit having a photoconductor for bearing a latent image thereon each detachably attached to the main body substantially in the same direction as the developer container. An exposure device displacing mechanism displaces the exposure device between a first position enabling the exposure device to function as the light source and a second position disabling the exposure device to function as the light source. The photoconductor unit is detached when the developer container is either displaced from an initially attached position or is removed from the main body and the exposure device displacing device has displaced the exposure device to the second position.Type: GrantFiled: November 7, 2011Date of Patent: July 1, 2014Assignee: Ricoh Company, Ltd.Inventors: Manabu Hamada, Tomofumi Yoshida, Hirobumi Ooyoshi, Yoshiyuki Shimizu, Takeru Muramatsu, Tomohiro Kubota, Shinichi Arasawa, Shoh Tsuritani, Masanari Fujita, Tatsuo Fukushima, Nobuhiko Kita, Haruo Hashimoto
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Publication number: 20140153972Abstract: A powder container that includes a container body to contain powder for image formation, a discharge outlet formed in the container body to discharge powder therefrom, a shutter movable between an open position to open the discharge outlet and a closed position to close the discharge outlet, and a seal member to be interposed between the container body and the shutter when the shutter is at the open position. In a state in which the shutter is at the open position, a downstream end of the seal member in an opening direction in which the shutter moves to open the discharge outlet is positioned downstream from a downstream end of the shutter in the opening direction.Type: ApplicationFiled: November 14, 2013Publication date: June 5, 2014Inventors: Shoh TSURITANI, YOSHIYUKI SHIMIZU, TOMOHIRO KUBOTA, MANABU HAMADA, MASATO TSUJI
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Patent number: 8744321Abstract: The developer container includes a rotator that is rotated in the container body, a sequence of gears disposed outside the developer container that transmits a torque to the rotator, and a container guiding portion that fits with a main body side guiding portion and guides the developer container in a direction in which the developer container is attached to a mounting portion of an image forming device main body. A first gear included in the sequence of the gears is movable between an operating position where the first gear engages with a second gear and a retracted position where the first gear is retracted. On a surface on which the container guiding portion is disposed, a part of the container guiding portion is disposed within a projected area of the first gear being disposed at the operating position.Type: GrantFiled: May 31, 2013Date of Patent: June 3, 2014Assignee: Ricoh Company, Ltd.Inventors: Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Manabu Hamada, Masato Tsuji, Masanari Fujita
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Publication number: 20140142827Abstract: A brake controlling unit detects a brake actuation object based on images captured by a running environment recognizing unit and sets a target brake pre-pressure actuation distance based on a relative speed between the brake actuation object and a subject vehicle. When an actual distance between the subject vehicle and the brake actuation object reaches the target brake pre-pressure actuation distance, the brake controlling unit outputs to a brake driving unit a driving signal that generates a brake pre-pressure to make the brake clearance of a brake minimal.Type: ApplicationFiled: November 15, 2013Publication date: May 22, 2014Applicant: FUJI JUKOGYO KABUSHIKI KAISHAInventor: Yoshiyuki SHIMIZU
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Publication number: 20140124909Abstract: According to one embodiment, a semiconductor device includes a first electrical conductor, a second electrical conductor, first and second semiconductors between the first and second electrical conductors, a first power terminal, a second power terminal, a signal terminal, and an insulator which covers the components. The insulator includes a flat bottom surface in which the first and second electrical conductors are exposed, a ceiling surface, a first end surface, and a second end surface. The power terminals and the signal terminal extend outwardly from the first and second end surfaces, and the ceiling surface, respectively. The first end surface, the ceiling surface, and the second end surface are formed with a parting line.Type: ApplicationFiled: September 12, 2013Publication date: May 8, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Takayuki Masunaga, Kazuhiro Ueda, Naotake Watanabe, Yoshiyuki Shimizu, Hideo Nishiuchi, Takashi Togasaki, Satoshi Sayama
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Publication number: 20140117526Abstract: According to one embodiment, a semiconductor power converter includes first and second electrical conductors opposed to each other, first and second semiconductor elements joined to a first joint surface of the first electrical conductor, first and second convex electrical conductors joined to the first and second semiconductor elements, a junction joined to the first and second convex electrical conductors and a second joint surface of the second electrical conductor, power terminals, signal terminals, and an envelope sealing the constituent members. The envelope includes a flat bottom surface which extends perpendicular to the semiconductor elements and in which first and second bottom surfaces of the electrical conductors are exposed.Type: ApplicationFiled: September 12, 2013Publication date: May 1, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Hideo Nishiuchi, Kazuhiro Ueda, Takayuki Masunaga, Naotake Watanabe, Yoshiyuki Shimizu, Takashi Togasaki, Koji Maruno
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Patent number: 8712310Abstract: An image forming apparatus includes a dual purpose tray that accommodates a document and a transfer sheet, a document transport mechanism to transport the document from the dual purpose tray to an image reading position, an image reading mechanism disposed beneath the document transport mechanism, an image forming mechanism disposed beneath the image reading mechanism, a transfer sheet transport mechanism to transport the transfer sheet from a bifurcation point through the image reading mechanism, a sheet feeding path that bifurcates into a first transport path through which the document is transported to the image reading position and a second transport path through which the transfer sheet is transported through the image reading mechanism to an image forming position by switching a switching member in accordance with one of a type of a recording medium set on the dual purpose tray and an operation mode of the image forming apparatus.Type: GrantFiled: June 25, 2009Date of Patent: April 29, 2014Assignee: Ricoh Company, Ltd.Inventors: Yoshiyuki Shimizu, Takafumi Miyazaki, Kozo Yamazaki, Hideyuki Masumoto, Tatsuya Miyadera
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Patent number: 8676294Abstract: To perform a more accurate and detailed diagnosis of a brain disease, a diagnosis server of the brain disease diagnosis system for diagnosing a brain disease of an examined person includes: an acquiring unit for acquiring a brain image of the examined person so as to obtain an acquired image; a region setting unit for setting a plurality of regions in the acquired image; an individual index value calculating unit for calculating an individual index value based on a pixel value of the acquired image, in each of the plurality of regions; a whole index value calculating unit for calculating a whole index value by weighting the individual index value of each of the plurality of regions; a diagnosis unit for diagnosing the brain disease of the examined person based on the whole index value; and an output unit for outputting information indicating a diagnosis outcome.Type: GrantFiled: June 19, 2009Date of Patent: March 18, 2014Assignee: Hamamatsu Photonics K.K.Inventors: Akihiro Kakimoto, Yoshiyuki Shimizu, Tsuyoshi Kosugi, Hiroyuki Okada
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Publication number: 20140050502Abstract: An image forming apparatus includes an apparatus body, an apparatus-side terminal provided to a first inner side wall of the apparatus body, a developer container to contain developer and to be removably installable in the apparatus body, a container-side terminal electrically connectable to the apparatus-side terminal and disposed in a first end portion of the developer container in a longitudinal direction thereof, and an apparatus-side protrusion projecting inward from the first inner side wall of the apparatus body. In removal of the developer container from the apparatus body, a second end portion of the developer container in the longitudinal direction is disengaged from the apparatus body before the first end portion is disengaged from the apparatus body, and the apparatus-side protrusion contacts the first end portion of the developer container immediately after removal of the developer container from the apparatus body is started.Type: ApplicationFiled: August 15, 2013Publication date: February 20, 2014Inventors: Shoh TSURITANI, Manabu Hamada, Tomohiro Kubota, Yoshiyuki Shimizu
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Publication number: 20140050507Abstract: A shutter assembly includes an internal shutter and an external shutter. The internal shutter including a contact member is movable between a first position at which the internal shutter closes the outlet, a third position at which the internal shutter opens the outlet, and a second position between the first position and the third position. The internal shutter at the second position is movable to the third position while closing the outlet. The external shutter is movable between a closed position at which the external shutter closes the outlet and an open position at which the external shutter opens the outlet, and includes an interlocking member to contact the contact member to move the internal shutter. As the external shutter is moved from the closed position to the open position, the internal shutter is moved from the first position to the second position in conjunction with the external shutter.Type: ApplicationFiled: July 17, 2013Publication date: February 20, 2014Inventors: Manabu HAMADA, Masanari Fujita, Masato Tsuji, Yoshiyuki Shimizu, Tomohiro Kubota, Shoh Tsuritani
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Publication number: 20140039439Abstract: A packaged absorbent article having a body surface and a garment surface; and a wrapper sheet for wrapping the absorbent article so that at least a portion of the garment surface of the absorbent article can be seen through the wrapper sheet.Type: ApplicationFiled: October 14, 2013Publication date: February 6, 2014Applicant: The Procter & Gamble CompanyInventors: Yoshiyuki Shimizu, Akane Matsuo, Sachiko Ninomya, Tsunetoshi Miura
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Publication number: 20140029962Abstract: An image forming apparatus includes a powder container containing powder used for image forming and including an inlet through which the powder is supplied, a powder supply unit including an outlet that is removably connected to the inlet and supplying the powder to the powder container with the outlet connected to the inlet of the powder container, a powder amount detector detecting whether a present powder level in the powder container is equal to or greater than a threshold, and a controller controlling an amount of powder supply from the powder supply unit and controlling the present powder level in the powder container after replenishment to remain in a range from the threshold and a position corresponding to an upper edge of the inlet. A powder transport unit includes a transport decelerating part to decelerate the speed of powder transport and a detection area in the image forming apparatus.Type: ApplicationFiled: July 10, 2013Publication date: January 30, 2014Inventors: Yoshiyuki SHIMIZU, Tomohiro KUBOTA, Shoh TSURITANI, Manabu HAMADA, Masato TSUJI, Masanari FUJITA, Naoki NAKATAKE
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Patent number: D698387Type: GrantFiled: December 11, 2012Date of Patent: January 28, 2014Assignee: Ricoh Company, Ltd.Inventors: Tomohiro Kubota, Sho Tsuritani, Yoshiyuki Shimizu, Emi Kita, Manabu Hamada, Masato Tsuji, Naoki Nakatake