Patents by Inventor Akihiro Ito
Akihiro Ito 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: 20210155427Abstract: A sheet feeding apparatus is disclosed. This sheet feeding apparatus includes: a feeding roller configured to feed sheets; a conveying roller configured to convey the sheets fed by the feeding roller; a separation roller configured to form a nip portion by being pressed on the conveying roller, and to separate one by one the sheets at the nip portion, the sheets being conveyed by the conveying roller; a guide configured to guide the sheets fed by the feeding roller to the nip portion; and a holder configured to hold the separation roller and the guide, and to be detachably attachable to the sheet feeding apparatus. The guide adheres to the holder and the separation roller is replaceable on the holder that has been removed from the sheet feeding apparatus.Type: ApplicationFiled: October 6, 2020Publication date: May 27, 2021Inventor: Akihiro Ito
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Publication number: 20210148630Abstract: A temperature control system is used for controlling a temperature of a control target to a target temperature that changes with lapse of time. The system includes: a first adjustment apparatus that includes a first tank that stores a first heat transfer medium, adjusts the temperature of the first heat transfer medium to a first set temperature, and supplies the temperature-adjusted first heat transfer medium; a first circulation circuit through which the first heat transfer medium flows from the first adjustment apparatus to a first flow-through path and returns to the first adjustment apparatus; an adjustment section that adjusts an amount of heat supplied from the first flow-through path to the control target; a memory that stores a relation between the lapse of time and the target temperature; and a controller.Type: ApplicationFiled: November 20, 2020Publication date: May 20, 2021Applicants: CKD CORPORATION, EBARA CORPORATION, EBARA REFRIGERATION EQUIPMENT & SYSTEMS CO., LTD.Inventors: Akihiro Ito, Norio Kokubo, Masayuki Kouketsu, Isahiro Hasegawa, Toshiharu Nakazawa, Keisuke Takanashi, Yukihiro Fukusumi
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Publication number: 20210148621Abstract: A cooling system includes: a first cooling apparatus electrically driven to supply a first heat transfer medium cooled to a first set temperature or lower; a plurality of second cooling apparatuses each of which includes a heat exchanger that exchanges heat between the first heat transfer medium supplied from the first cooling apparatus and a second heat transfer medium, and is electrically driven to supply a third heat transfer medium cooled to a second set temperature or lower, the second set temperature being changed individually with lapse of time; and a processor that obtains second set temperatures of the second cooling apparatuses and sets the first set temperature based on the obtained second set temperatures.Type: ApplicationFiled: November 20, 2020Publication date: May 20, 2021Applicants: CKD CORPORATION, EBARA CORPORATION, EBARA REFRIGERATION EQUIPMENT & SYSTEMS CO., LTD.Inventors: Akihiro Ito, Norio Kokubo, Masayuki Kouketsu, Isahiro Hasegawa, Toshiharu Nakazawa, Keisuke Takanashi, Yukihiro Fukusumi
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Publication number: 20210140719Abstract: A temperature control system is used for controlling a temperature of a control target. The system includes: a first circulation circuit through which a first heat transfer medium circulates; a second circulation circuit that is independent of the first circulation circuit and through which a second heat transfer medium circulates; and a third circulation circuit that is independent of the first circulation circuit and the second circulation circuit and through which a third heat transfer medium circulates. The third heat transfer medium has a usable temperature range wider than usable temperature ranges of the first heat transfer medium and the second heat transfer medium.Type: ApplicationFiled: November 9, 2020Publication date: May 13, 2021Applicants: CKD CORPORATION, EBARA CORPORATION, EBARA REFRIGERATION EQUIPMENT & SYSTEMS CO., LTD.Inventors: Akihiro Ito, Norio Kokubo, Masayuki Kouketsu, Isahiro Hasegawa, Toshiharu Nakazawa, Keisuke Takanashi, Yukihiro Fukusumi
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Publication number: 20210140688Abstract: A temperature control system is used for controlling a temperature of a control target. The system includes: a first circulation circuit through which a first heat transfer medium circulates; a second circulation circuit that is independent of the first circulation circuit and through which a second heat transfer medium circulates; and a third circulation circuit that is independent of the first circulation circuit and the second circulation circuit and through which a third heat transfer medium circulates. The third heat transfer medium has a usable temperature range wider than usable temperature ranges of the first heat transfer medium and the second heat transfer medium.Type: ApplicationFiled: November 9, 2020Publication date: May 13, 2021Applicants: CKD CORPORATION, EBARA CORPORATION, EBARA REFRIGERATION EQUIPMENT & SYSTEMS CO., LTD.Inventors: Akihiro Ito, Norio Kokubo, Masayuki Kouketsu, Isahiro Hasegawa, Toshiharu Nakazawa, Keisuke Takanashi, Yukihiro Fukusumi
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Publication number: 20210124314Abstract: A servo control device to execute an operation in a discrete time system may include a velocity feedback path having a difference means calculating a pseudo-velocity from a detected position and a lowpass filter, and a PI control means executing a proportional integration control operation on a deviation between the pseudo-velocity and the position deviation to create a drive command for the driver. The velocity feedback path includes a first gain means applying a first gain to the pseudo-velocity, a delay means delaying the pseudo-velocity, and a second gain means applying a second gain to the delayed pseudo-velocity. A sum of an output of the first gain means and the second gain means is inputted to the lowpass filter, and “Fa(z)=1/(1?z?1Fb(z))” is satisfied where a transfer function of the PI control means is Fa(z), and a transfer function of the lowpass filter is Fb(z).Type: ApplicationFiled: January 5, 2021Publication date: April 29, 2021Inventor: Akihiro ITO
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Publication number: 20210108737Abstract: A flow path switching valve includes (a) a valve body in a shape of a rectangular parallelepiped having a predetermined surface and an opposite surface, the valve body including an open flow passage having an opening on the predetermined surface, (b) a main body including a plurality of ports having a respective opening on a facing surface thereof facing the predetermined surface, and a plurality of connection flow passages each connected to respective one of the plurality of ports, (c) a pair of plate springs attached to opposite ends of the valve body to support the valve body with a predetermined gap formed between the predetermined surface and the facing surface, the plate springs applying elastic force to the valve body in accordance with an amount of movement of the valve body in a predetermined direction, and (d) an actuator for reciprocating the valve body in the predetermined direction.Type: ApplicationFiled: December 22, 2020Publication date: April 15, 2021Inventors: Akihiro ITO, Masayuki KOUKETSU, Keiichi NISHIKAWA, Yasuhisa HIROSE, Takahiro MINATANI
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Patent number: 10915072Abstract: A servo control device to execute an operation in a discrete time system may include a velocity feedback path having a difference means calculating a pseudo-velocity from a detected position and a lowpass filter, and a PI control means executing a proportional integration control operation on a deviation between the pseudo-velocity and the position deviation to create a drive command for the driver. The velocity feedback path includes a first gain means applying a first gain to the pseudo-velocity, a delay means delaying the pseudo-velocity, and a second gain means applying a second gain to the delayed pseudo-velocity. A sum of an output of the first gain means and the second gain means is inputted to the lowpass filter, and “Fa(z)=1/(1?z?1Fb(z))” is satisfied where a transfer function of the PI control means is Fa(z), and a transfer function of the lowpass filter is Fb(z).Type: GrantFiled: June 27, 2018Date of Patent: February 9, 2021Assignee: NIDEC SANKYO CORPORATIONInventor: Akihiro Ito
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Patent number: 10907748Abstract: The flow path switching valve includes (a) a valve body having an open flow path which opens on a predetermined surface over a predetermined length in a predetermined direction, (b) a main body having a plurality of ports which open on a facing surface facing the predetermined surface at an interval shorter than the predetermined length in the predetermined direction, and a plurality of connection flow paths connected to the plurality of ports, (c) plate springs attached on both ends of the valve body in the predetermined direction so as to support the valve body such that a predetermined gap is formed between the predetermined surface and the facing surface, the plate springs applying elastic force onto the valve body according to a movement amount of the valve body in the predetermined direction, and (d) an actuator which drives the valve body back and forth in the predetermined direction.Type: GrantFiled: September 11, 2018Date of Patent: February 2, 2021Assignee: CKD CorporationInventors: Akihiro Ito, Masayuki Kouketsu, Keiichi Nishikawa, Yasuhisa Hirose, Takahiro Minatani
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Patent number: 10906766Abstract: A sheet discharging apparatus includes a discharge portion discharging a sheet in a discharge direction; a sheet supporting portion including a support surface which supports a lower surface of the sheet discharged from the discharge portion; and a conductive portion which is electrically conductive and connected to a ground potential. The conductive portion is provided at the support surface.Type: GrantFiled: November 9, 2018Date of Patent: February 2, 2021Assignee: Canon Kabushiki KaishaInventor: Akihiro Ito
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Patent number: 10876781Abstract: A switch mechanism may include a lever holding part which is provided in a case, a turnable lever provided with a shaft part turnably supported by the lever holding part and a first arm part and a second arm part protruded from the shaft part, an urging member structured to urge the turnable lever, and a switch whose state is switched by displacement of the turnable lever. The turnable lever is attached to the lever holding part in a state that the urging member is engaged between the first arm part and the second arm part, and the urging member is movable between an engaging position, where the urging member is engaged between the first arm part and the second arm part, and an engaging release position, where the urging member is engaged with the second arm part and is disengaged from the first arm part.Type: GrantFiled: December 19, 2017Date of Patent: December 29, 2020Assignee: NIDEC SANKYO CORPORATIONInventors: Takehiko Yazawa, Satoru Yokoe, Akihiro Ito
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Publication number: 20200377662Abstract: An object of the present invention is to provide an epoxy group-containing polyorganosiloxane, a curable resin composition and a cured product which are excellent in curability, surface nature of a coating film, adhesiveness, and impact resistance. The epoxy group-containing polyorganosiloxane of the present invention contains an M unit (R1R2R3SiO1/2), a D unit (R4R5O2/2), and a Q unit (SiO4/2), wherein a content of a T unit (R6SiO3/2) with respect to total silicon is 80 mol % or less. The curable resin composition of the present invention contains the epoxy group-containing polyorganosiloxane (A) and a curing agent (B).Type: ApplicationFiled: August 20, 2020Publication date: December 3, 2020Applicant: Mitsubishi Chemical CorporationInventors: Akifumi TOBE, Mutsumi YAMAZAKI, Akihiro ITO, Takumi WATANABE, Noriaki TERADA
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Patent number: 10832853Abstract: A coil sheet includes a conductor layer, a thermally resistant organic insulating layer, a thermosetting adhesive layer in a B-stage state, and a base layer, such that the conductor layer and the insulating layer are bonded to the base layer with the adhesive layer. A coil is formed of a laminate sheet including a conductor layer, an insulating layer, and an adhesive layer of the coil sheet which are released from the base layer thereof, wherein the laminate sheet is wound around a specific axis a plurality of times, and the adhesive layer is thermally cured.Type: GrantFiled: June 9, 2017Date of Patent: November 10, 2020Assignee: CKD CorporationInventors: Akihiro Ito, Masayuki Kouketsu, Hideki Goda, Takashi Tasaki, Kazuhiro Izumoto
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Publication number: 20200318753Abstract: A flow rate ratio control valve includes a pair of plate springs, each of which applies elastic force in a predetermined direction in accordance with the amount of deformation, a valve body supported by the pair of plate springs to be movable in the predetermined direction, a drive unit which drives the valve body in the predetermined direction in a non-contact state by means of electromagnetic force applied to a region between the pair of plate springs in the predetermined direction, a container in which the plate springs and the valve body are contained, and a damper which is attached to the valve body, defines a sectioned predetermined space in cooperation with an inner surface of the container, and forms a predetermined gap between the damper and the inner surface, the predetermined gap establishing communication in the predetermined direction between the predetermined space and the exterior of the predetermined space.Type: ApplicationFiled: June 18, 2020Publication date: October 8, 2020Inventors: Akihiro ITO, Masayuki KOUKETSU, Masaya YAMAUCHI, Toshikazu TSURUGA
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Publication number: 20200284492Abstract: To provide an ice making device including an ice making tray, a drive unit configured to turn over the ice making tray, a frame including a frame body, the frame configured to support the ice making tray, and a fan motor configured to send wind to the ice making tray. The frame includes a block unit configured to contact a part of the ice making tray turning over to partially disturb the turning over of the ice making tray, and the fan motor is fixed only to a first frame part including one of a plurality of frame parts constituting sides surrounding a periphery of the ice making tray in a plan view of the frame.Type: ApplicationFiled: March 4, 2020Publication date: September 10, 2020Applicant: NIDEC SANKYO CORPORATIONInventors: Shunji SAITO, Akihiro ITO, Takaji HARATA
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Publication number: 20200247963Abstract: A heat conduction sheet, includes at least one kind of graphite particle (A) selected from the group consisting of scale-like particles, ellipsoidal particles and rod-like particles; a polymer (B) having an isobutylene structure; an ethylene-propylene copolymer (C); and an ethylene octene elastomer (D), in which, in a case of scale-like particles, a plane direction of the particle is oriented in a thickness direction of the heat conduction sheet, and in a case of ellipsoidal particles or rod-like particles, a long axis direction of the particle is oriented in the thickness direction of the heat conduction sheet.Type: ApplicationFiled: December 28, 2016Publication date: August 6, 2020Inventors: Akihiro ITO, Michiaki YAJIMA, Mika KOBUNE, Takahiro IKABATA
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Patent number: 10704555Abstract: The invention provides a stator-side member which is arranged in a vacuum pump and which, without the provision of a heat insulation material, prevents the deposition of products at the lower side of a threaded groove pump unit, with this lower side being an area of high pressure where the deposition of products (deposits) occurs easily, and also provides a vacuum pump equipped with this stator-side member. A threaded groove spacer configured to have a coefficient of thermal conductivity lower than a predetermined value is arranged in a vacuum pump equipped with a threaded groove pump unit. (1) The threaded groove spacer is manufactured from a material having a coefficient of thermal conductivity lower than that of a member which opposes or comes into contact with the threaded groove spacer.Type: GrantFiled: August 26, 2013Date of Patent: July 7, 2020Assignee: Edwards Japan LimitedInventors: Yoshiyuki Sakaguchi, Akihiro Ito, Yoshinobu Ohtachi, Yasushi Maejima, Tsutomu Takaada
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Patent number: 10676615Abstract: An object of the present invention is to provide a fiber-reinforced resin composition in which fibers with good dispersibility and a resin in which the fibers are easily dispersed have been suitably composited; and a method for producing the fiber-reinforced resin composition. Specifically, the object is to provide a fiber-reinforced resin composition that comprises chemically modified CNFs and a thermoplastic resin, and that has improved physical properties due to the suitable compositing of the fibers with the resin; and a method for producing the fiber-reinforced resin composition. The fiber-reinforced resin composition comprises chemically modified CNFs (A) and a thermoplastic resin (B), wherein the chemically modified CNFs and the thermoplastic resin satisfy the following conditions: (a) the ratio R of the solubility parameter (SPcnf) of the chemically modified CNFs (A) to the solubility parameter (SPpol) of the thermoplastic resin (B), SPcnf/SPpol, is in the range of 0.87 to 1.Type: GrantFiled: March 17, 2016Date of Patent: June 9, 2020Assignees: Kyoto University, KYOTO MUNICIPAL INSTITUTE OF INDUSTRIAL TECHNOLOGY AND CULTURE, NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Takeshi Semba, Akihiro Ito, Takahiro Uesaka, Kazuo Kitagawa, Fumiaki Nakatsubo, Hiroyuki Yano
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Publication number: 20200101596Abstract: A servo control device for controlling a motor based on a position command when an operation target is connected to the motor via a wave gear reduction mechanism may include a position control system configured to detect a shaft angular position of the motor to perform a closed-loop control based on the shaft angular position; an inverse control element having an inverse characteristic of dynamics of the position control system; and a compensation amount generation unit configured to generate a compensation amount for compensating for an angular transmission error of the wave gear reduction mechanism. The inverse control element is configured to apply compensation amount to the position control system.Type: ApplicationFiled: September 25, 2019Publication date: April 2, 2020Inventors: Akihiro ITO, Shunya YAZAWA
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Publication number: 20190331382Abstract: An ice maker 1 includes an ice making tray 5, a driving unit 6 configured to flip the ice making tray 5 around a predetermined axis, a water supply mechanism 8, and a control unit 19 configured to control driving of the driving unit 6 and the water supply mechanism 8, and a setting switch 22 configured to set a water supply time of water to be supplied from the water supply mechanism 8 to the ice making tray 5. If the water supply time is set to a first water supply time, a second water supply time, or a third water supply time by the operation on the setting switch 22 (steps ST20, ST25, ST28), the ice maker 1 performs a setting confirmation operation to swing the ice making tray 5 the number of times corresponding to the set water supply time (steps ST21, ST26, ST29).Type: ApplicationFiled: April 23, 2019Publication date: October 31, 2019Applicant: NIDEC SANKYO CORPORATIONInventors: Shunji SAITO, Akihiro ITO, Satoshi TANIMURA