Patents by Inventor Akihiro Kobayashi
Akihiro 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: 20200192242Abstract: A container includes a container body, an opening/closing member, and a suppressing portion. The container body has a circumferential surface and has an opening in the circumferential surface through which powder contained in the container body is discharged to outside of the container body. The opening/closing member has an inner circumferential surface. The opening/closing member is mounted to the container body, and is moved, when the container body is relatively rotated to one side in a circumferential direction of the container body, from a closed position to an open position The opening/closing member is moved, when the container body is relatively rotated to another side in the circumferential direction, from the open position to the closed position. The suppressing portion is formed in the inner circumferential surface of the opening/closing member. The suppressing portion suppresses leakage of the powder from the opening/closing member to outside of the opening/closing member.Type: ApplicationFiled: April 9, 2019Publication date: June 18, 2020Applicant: FUJI XEROX CO., LTD.Inventors: Akihiro KOBAYASHI, Takuji MATSUMOTO
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Publication number: 20200192272Abstract: A rotating device includes a body having a bottom wall extending in one direction; a holding object including a rotating portion extending in the one direction and a supporting portion supporting the rotating portion at one end of the rotating portion in the one direction such that the rotating portion is rotatable on an axis extending in the one direction, the holding object being provided on the bottom wall; a first holding portion provided on the body and holding the supporting portion of the holding object at one end of the supporting portion in the one direction; a second holding portion provided on the body and holding the supporting portion of the holding object at an other end of the supporting portion in the one direction; and a transmitting portion provided on the body and transmitting a rotational force to the rotating portion of the holding object.Type: ApplicationFiled: April 22, 2019Publication date: June 18, 2020Applicant: FUJI XEROX CO., LTD.Inventors: Akihiro KOBAYASHI, Takuji MATSUMOTO
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Publication number: 20200192273Abstract: A container mounting structure includes a container, a container mounting portion, and a regulating section. The container has an opening, extends in one direction, and contains powder. When the container disposed at a predetermined temporarily placed position is rotated in a circumferential direction of the container, the container is mounted to the container mounting portion and the opening of the container is, with the container mounting portion, caused to be exposed. The regulating section regulates the rotation of the container in the circumferential direction in a case where the container is disposed at a position deviated from the temporarily placed position.Type: ApplicationFiled: April 26, 2019Publication date: June 18, 2020Applicant: FUJI XEROX CO., LTD.Inventors: Akihiro KOBAYASHI, Takuji MATSUMOTO
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Patent number: 10684574Abstract: A container includes a container body, an opening/closing member, and a suppressing portion. The container body has a circumferential surface, and has an opening in the circumferential surface through which powder contained in the container body is discharged to outside of the container body. The opening/closing member has an inner circumferential surface. The opening/closing member is mounted to the container body, and is moved, when the container body is relatively rotated to one side in a circumferential direction of the container body, from a closed position to an open position. The opening/closing member is moved, when the container body is relatively rotated to another side in the circumferential direction, from the open position to the closed position. The suppressing portion is formed in the inner circumferential surface of the opening/closing member. The suppressing portion suppresses leakage of the powder from the opening/closing member to outside of the opening/closing member.Type: GrantFiled: April 9, 2019Date of Patent: June 16, 2020Assignee: FUJI XEROX CO., LTD.Inventors: Akihiro Kobayashi, Takuji Matsumoto
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Patent number: 10676617Abstract: Provided is a method for producing an organopolysiloxane emulsion composition which contains an organopolysiloxane having a trialkyl group at a terminal thereof and having a viscosity of 50,000 mm2/s or more at 25° C., within a shorter time compared with the conventional methods. A method for producing an emulsion composition which contains an organopolysiloxane having a viscosity of 50,000 mm2/s or more at 25° C. and capped with a trialkylsilyl group, said method comprising: (I) emulsifying a mixture comprising (A) an organopolysiloxane, (B) a nonionic surfactant, (C) an anionic surfactant, (D-1) an acidic compound and (E-1) water to prepare an emulsion composition; (II) adding (D-2) an acidic compound and (E-2) water to the emulsion composition to perform emulsion polymerization; and (III) adding 0.001 part by mass or more of (F) a compound to the resultant product to perform emulsion polymerization again.Type: GrantFiled: May 12, 2015Date of Patent: June 9, 2020Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Akihiro Kobayashi, Yuji Ando, Yuko Takada, Shunji Aoki
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Patent number: 10663887Abstract: A cartridge support unit includes a housing, a toner cartridge, a guide member, a shutter body, and at least one snap fit portion. The housing has an opening. The toner cartridge has a cylindrical shape, has an outer circumferential surface, and is removably mounted in the housing. The guide member has portions and is provided at such a position in the housing that the opening is interposed between the portions of the guide member. The shutter body slides against the guide member from a closed position where the shutter body covers the opening to an open position where the shutter body exposes the opening. The at least one snap fit portion extends from the shutter body and has a protrusion. The protrusion is pushed by the outer circumferential surface of the toner cartridge so as release a lock state at the closed position.Type: GrantFiled: March 13, 2019Date of Patent: May 26, 2020Assignee: FUJI XEROX CO., LTD.Inventors: Akihiro Kobayashi, Yuzo Mochida
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Publication number: 20200125049Abstract: According to an embodiment, an encoder system includes an encoder and an interface. The encoder detects the position and speed of a motor, and generates A-, B- and Z-phase signals. The interface includes an AB waveform recognition circuitry to recognize a waveform of an AB phase, a Z waveform recognition circuitry to recognize a period of an enable state of a Z phase, a starting point storage device to store a value of the AB phase when the Z phase changes and stores an AB-phase change pattern, a starting point recognition circuitry to generate an interrupt signal, and a rotation angle counter to start a new count of the rotation angle of the motor.Type: ApplicationFiled: August 12, 2019Publication date: April 23, 2020Inventors: Akihiro Kobayashi, Makoto Kanda, Shigeru Itoh, Hiroshi Nishikawa, Wataru Furuichi, Kiyoshige Taga, Kazuma Takeda
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Publication number: 20200096905Abstract: A cartridge support unit includes a housing, a toner cartridge, a guide member, a shutter body, and at least one snap fit portion. The housing has an opening. The toner cartridge has a cylindrical shape, has an outer circumferential surface, and is removably mounted in the housing. The guide member has portions and is provided at such a position in the housing that the opening is interposed between the portions of the guide member. The shutter body slides against the guide member from a closed position where the shutter body covers the opening to an open position where the shutter body exposes the opening. The at least one snap fit portion extends from the shutter body and has a protrusion. The protrusion is pushed by the outer circumferential surface of the toner cartridge so as release a lock state at the closed position.Type: ApplicationFiled: March 13, 2019Publication date: March 26, 2020Applicant: FUJI XEROX CO., LTD.Inventors: Akihiro KOBAYASHI, Yuzo MOCHIDA
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Publication number: 20200048461Abstract: A silicone emulsion composition capable of being formed into a coating film, which contains: (A) 100 parts by mass of an organopolysiloxane containing, per molecule, at least two groups each capable of binding to a silicon atom, wherein the at least two groups are independently selected from a hydroxyl group and an alkoxy group; (B) 0.1 to 50 parts by mass of a surfactant; (C) 0.01 to 10 parts by mass of at least one substance selected from cellulose and a cellulose derivative; (D) 0.5 to 50 parts by mass of colloidal silica; and (E) 50 to 1,000 parts by mass of water.Type: ApplicationFiled: February 8, 2018Publication date: February 13, 2020Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Akihiro KOBAYASHI, Shunji AOKI
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Publication number: 20200012594Abstract: According to one embodiment, a shared FIFO device includes a write pointer control circuit, a read pointer control circuit, a write pointer selection circuit, a read pointer selection circuit, a selection circuit, and a memory array. The shared FIFO device performs FIFO access through n transfer routes (where n is an integer of 2 or greater).Type: ApplicationFiled: December 20, 2018Publication date: January 9, 2020Inventors: Wataru Furuichi, Makoto Kanda, Shigeru Itoh, Hiroshi Nishikawa, Akihiro Kobayashi, Kiyoshige Taga
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Patent number: 10494482Abstract: A production method for an organopolysiloxane emulsion composition, wherein (I) an emulsion composition is prepared by emulsifying an organopolysiloxane (A) that is represented by formula (2), or that is a mixture of organopolysiloxanes represented by formulas (1) and (2), and that has an octamethylcyclotetrasiloxane content of 1000 ppm or less (R1 and R2 are H or a monovalent hydrocarbon group, n is a number that makes the viscosity of the organopolysiloxane 200-100,000 mm2/s, and a, b, c, and d satisfy the expressions a?3, b?5, c+d?1, 10?a+b+c+d?1,000), a surfactant (B), and water (C-1), and wherein (II) water (C-2) is added as needed and then emulsion polymerization is performed in the presence of an acid catalyst (D). The organopolysiloxane generated has a 15 mass % toluene solution viscosity of 200 mPa·s or higher at 25° C., has an octamethylcyclotetrasiloxane content of 3000 ppm or less, and has a branched structure that has a particle size of 1 ?m or less.Type: GrantFiled: September 1, 2016Date of Patent: December 3, 2019Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Akihiro Kobayashi, Yuko Takada, Shunji Aoki
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Publication number: 20190272223Abstract: According to one embodiment, a supervisory circuit includes a trigger determination circuit and a trigger table. The trigger determination circuit receives signal processing signals outputted from a plurality of signal processing circuits as trigger signals, determines whether processing operations by the signal processing circuits are executed in a predetermined order, and outputs an interrupt signal when detecting a trigger signal out of setting. The trigger table is provided with trigger-specific tables corresponding to the respective signal processing circuits, reads a trigger setting to occur next based on a trigger determined as being correct by the trigger determination circuit, and outputs a table read signal to the trigger determination circuit.Type: ApplicationFiled: August 31, 2018Publication date: September 5, 2019Inventors: Akihiro Kobayashi, Makoto Kanda, Shigeru Itoh, Hiroshi Nishikawa, Wataru Furuichi, Kiyoshige Taga, Itsuro Nomura
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Patent number: 10379470Abstract: A fuser includes: a heater; a rotation body which is heated by the heater; an endless belt; an elastic pad which is in contact with an inner circumferential surface of the endless belt to form a nip portion with the endless belt intervening between the elastic pad and the rotation body; and a wall surrounded by the endless belt and disposed upstream of the elastic pad in a moving direction of the endless belt at the nip portion. The wall has a facing surface facing the elastic pad in the moving direction. The facing surface includes: contact portions positioned at both ends in a width direction of the endless belt and in contact with the elastic pad; and a center portion positioned between the contact portions in the width direction, at an upstream side of the contact portions in the moving direction.Type: GrantFiled: September 21, 2018Date of Patent: August 13, 2019Assignee: Brother Kogyo Kabushiki KaishaInventor: Akihiro Kobayashi
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Patent number: 10261448Abstract: A roller device includes a first roller; a second roller that rotates around a rotation axis extending in a first direction and that is disposed upstream of the first roller in a second direction; a bearing that supports the second roller and includes a projection; an urging unit that urges the bearing in the second direction; and a passage member having a gap that defines first and second passages that respectively extend in the first and second directions and supporting the bearing. The projection is inserted in the gap. The bearing is movable in the first and second directions. The first and second rollers are apart from each other when the projection is in the first passage. The bearing is moved in the second direction so that the first and second rollers are pressed against each other when the projection is in the second passage.Type: GrantFiled: March 31, 2018Date of Patent: April 16, 2019Assignee: FUJI XEROX CO., LTD.Inventor: Akihiro Kobayashi
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Publication number: 20190094770Abstract: A fuser includes: a heater; a rotation body which is heated by the heater; an endless belt; an elastic pad which is in contact with an inner circumferential surface of the endless belt to form a nip portion with the endless belt intervening between the elastic pad and the rotation body; and a wall surrounded by the endless belt and disposed upstream of the elastic pad in a moving direction of the endless belt at the nip portion. The wall has a facing surface facing the elastic pad in the moving direction. The facing surface includes: contact portions positioned at both ends in a width direction of the endless belt and in contact with the elastic pad; and a center portion positioned between the contact portions in the width direction, at an upstream side of the contact portions in the moving direction.Type: ApplicationFiled: September 21, 2018Publication date: March 28, 2019Inventor: Akihiro Kobayashi
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Patent number: 10232288Abstract: The present invention relates to a defoamer oil compound that contains an organopolysiloxane (A), a fine silica powder (B), and a group (C) that is represented by the organopolysiloxanes of formulas (I) and/or (II) (in the formulas, c, d, and e are each an integer of 0 or more, and at least one of X1 to X3 is the group represented by formula (i)). The component (C) is used as a surface treatment agent for the component (B). The present invention makes it possible to obtain a silicone-based defoamer composition that imparts good initial defoaming properties even in an alkaline foaming liquid, that exhibits very little loss in performance over time, and that has excellent defoaming performance.Type: GrantFiled: July 24, 2015Date of Patent: March 19, 2019Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Akihiro Kobayashi, Chinami Matsui, Takato Sakurai, Shunji Aoki
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Publication number: 20180361274Abstract: The present invention relates to a defoamer oil compound that contains an organopolysiloxane (A), a fine silica powder (B), and a group (C) that is represented by the organopolysiloxanes of formulas (I) and/or (II) (in the formulas, c, d, and e are each an integer of 0 or more, and at least one of X1 to X3 is the group represented by formula (i)). The component (C) is used as a surface treatment agent for the component (B). The present invention makes it possible to obtain a silicone-based defoamer composition that imparts good initial defoaming properties even in an alkaline foaming liquid, that exhibits very little loss in performance over time, and that has excellent defoaming performance.Type: ApplicationFiled: August 27, 2018Publication date: December 20, 2018Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Akihiro KOBAYASHI, Chinami Matsui, Takato Sakurai, Shunji Aoki
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Publication number: 20180284658Abstract: A roller device includes a first roller; a second roller that rotates around a rotation axis extending in a first direction and that is disposed upstream of the first roller in a second direction; a bearing that supports the second roller and includes a projection; an urging unit that urges the bearing in the second direction; and a passage member having a gap that defines first and second passages that respectively extend in the first and second directions and supporting the bearing. The projection is inserted in the gap. The bearing is movable in the first and second directions. The first and second rollers are apart from each other when the projection is in the first passage. The bearing is moved in the second direction so that the first and second rollers are pressed against each other when the projection is in the second passage.Type: ApplicationFiled: March 31, 2018Publication date: October 4, 2018Applicant: FUJI XEROX CO.,LTD.Inventor: Akihiro KOBAYASHI
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Publication number: 20180251607Abstract: A production method for an organopolysiloxane emulsion composition, wherein (I) an emulsion composition is prepared from an organopolysiloxane (A) that is represented by formula (1) and that has an octamethylcyclotetrasiloxane content of 1,000 ppm or less HO(R12SiO)nH??(1), (wherein R1 is H or a monovalent hydrocarbon group and n is a number that makes the viscosity, at 25° C., of the organopolysiloxane 200 mm2/s or more but less than 2,000 mm2/s), a surfactant (B) that is represented by formula (2) and that has an alkyl naphthalene skeleton R2a-C10H(7-a)SO3M??(2), (wherein R2 is an alkyl group, M is H+, an alkali metal ion, an alkali earth metal ion, NH4+, or a tertiary NH4+, and m is 1-3), and water (C-1), and wherein (II) water (C-2) is added as necessary and then emulsion polymerization is performed in the presence of an acid catalyst (D). The organopolysiloxane produced has a viscosity of 300,000 mPa·s or higher at 25° C. and has an octamethylcyclotetrasiloxane content of 3,000 ppm or less.Type: ApplicationFiled: September 1, 2016Publication date: September 6, 2018Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Akihiro KOBAYASHI, Yuko TAKADA, Takuya ABE
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Publication number: 20180244850Abstract: A production method for an organopolysiloxane emulsion composition, wherein (I) an emulsion composition is prepared by emulsifying an organopolysiloxane (A) that is represented by formula (2), or that is a mixture of organopolysiloxanes represented by formulas (1) and (2), and that has an octamethylcyclotetrasiloxane content of 1000 ppm or less (R1 and R2 are H or a monovalent hydrocarbon group, n is a number that makes the viscosity of the organopolysiloxane 200-100,000 mm2/s, and a, b, c, and d satisfy the expressions a?3, b?5, c+d?1, 10?a+b+c+d?1,000), a surfactant (B), and water (C-1), and wherein (II) water (C-2) is added as needed and then emulsion polymerization is performed in the presence of an acid catalyst (D). The organopolysiloxane generated has a 15 mass % toluene solution viscosity of 200 mPa·s or higher at 25° C., has an octamethylcyclotetrasiloxane content of 3000 ppm or less, and has a branched structure that has a particle size of 1 ?m or less.Type: ApplicationFiled: September 1, 2016Publication date: August 30, 2018Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Akihiro KOBAYASHI, Yuko TAKADA, Shunji AOKI