Patents by Inventor Kazuo Ueda
Kazuo Ueda 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: 20240124244Abstract: A conveying roller, a conveyor device, and an inclined conveyor for objects. A conveying roller comes into contact with an object and moves the object, the conveying roller including: a core member and a plurality of blade-shaped pieces, the blade-shaped piece being elastically deformable and being provided around the core member.Type: ApplicationFiled: March 7, 2022Publication date: April 18, 2024Inventors: Kazuo ITOH, Tatsuhiko NAKAMURA, Koji UEDA, Atsushi NISHIMURA
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Publication number: 20230053435Abstract: A bonding method in which applied is a prescribed conductive bonding material, which contains a molded article of a metal powder. The metal powder is one or more selected from the group consisting of a gold powder, a silver powder, a platinum powder, and a palladium powder, and has a purity of 99.9% by mass or more, and an average particle size of 0.005 µm to 1.0 µm, and the conductive bonding material has a compressive deformation rate M, represented by the following expression, of 5 % or more and 30% or less when compressed with a compression pressure of 5 MPa. [Expression 1] M = {(h1 - h2)/h1} x 100, wherein h1 represents an average thickness of the conductive bonding material before compression, and h2 represents an average thickness of the conductive bonding material after the compression.Type: ApplicationFiled: September 28, 2020Publication date: February 23, 2023Applicant: TANAKA KIKINZOKU KOGYO K.K.Inventors: Toshinori OGASHIWA, Kazuo UEDA
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Patent number: 11408309Abstract: A valve opening and closing timing control device includes: a drive-side rotary body rotating synchronously with a crankshaft; a driven-side rotary body arranged coaxially with the drive-side rotary body and rotating integrally with a valve opening and closing camshaft; a fluid pressure chamber defined between the drive-side and driven-side rotary bodies; advance and retard chambers defined by partitioning the fluid pressure chamber; an intermediate lock mechanism selectively switches between a lock state and a lock release state; advance and retard flow paths allowing a flow of the working fluid to be supplied to and discharged from the advance and retard chambers; a control valve including a spool; and a phase control unit moving a position of the spool by controlling a power supply amount to the control valve to supply and discharge the working fluid to and from the advance and retard chambers to displace a relative rotation phase.Type: GrantFiled: December 15, 2020Date of Patent: August 9, 2022Assignee: AISIN CORPORATIONInventors: Kazuo Ueda, Yuji Noguchi, Masaki Kobayashi
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Patent number: 11255227Abstract: A valve opening and closing timing control device includes: a drive-side rotary body rotating synchronously with a crankshaft; a driven-side rotary body provided inside the drive-side rotary body coaxially and rotating integrally with a camshaft; advance and retard chambers formed between the drive-side and driven-side rotary bodies; a lock mechanism switchable between a lock state and a lock release state; a valve unit including a fluid supply pipe into which fluid is supplied and a spool movable along a direction of the rotation axis, and controlling supply of the fluid to and from the lock mechanism, and the advance and retard chambers; and a tubular valve case having an internal space inside the driven-side rotary body and housing the valve unit in the internal space. A first opening portion is formed in the fluid supply pipe. A second opening portion is formed in the valve case.Type: GrantFiled: December 3, 2020Date of Patent: February 22, 2022Assignee: AISIN CORPORATIONInventors: Kazuo Ueda, Yuji Noguchi, Hirokazu Nonogaki
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Patent number: 11162396Abstract: A valve opening-closing timing control device includes a valve case in which an inner space is formed in a direction along a rotational axis, and a valve unit accommodated in the inner space so as to be coaxial with the rotation axis and controlling fluid to and from an advance chamber and a retard chamber. The valve unit includes a check valve on an upstream side to which fluid is supplied. The check valve includes a valve seat in which a flow passage hole through which the fluid flows is formed, and a valve body including a closing portion that can close the flow passage hole. The valve seat includes a first projection portion to surround the flow passage hole. The check valve is closed by the closing portion contacting against the first projection portion, and is opened by the closing portion being separated from the first projection portion.Type: GrantFiled: May 30, 2019Date of Patent: November 2, 2021Assignee: AISIN CORPORATIONInventors: Kenta Sakaguchi, Takeo Asahi, Kazuo Ueda, Tomohiro Kajita, Yusei Shinpo
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Publication number: 20210189918Abstract: A valve opening and closing timing control device includes: a drive-side rotary body rotating synchronously with a crankshaft; a driven-side rotary body arranged coaxially with the drive-side rotary body and rotating integrally with a valve opening and closing camshaft; a fluid pressure chamber defined between the drive-side and driven-side rotary bodies; advance and retard chambers defined by partitioning the fluid pressure chamber; an intermediate lock mechanism selectively switches between a lock state and a lock release state; advance and retard flow paths allowing a flow of the working fluid to be supplied to and discharged from the advance and retard chambers; a control valve including a spool; and a phase control unit moving a position of the spool by controlling a power supply amount to the control valve to supply and discharge the working fluid to and from the advance and retard chambers to displace a relative rotation phase.Type: ApplicationFiled: December 15, 2020Publication date: June 24, 2021Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Kazuo UEDA, Yuji NOGUCHI, Masaki KOBAYASHI
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Patent number: 11041412Abstract: A valve timing controller includes: a driving-side rotating body rotating in synchronization with a crankshaft of an internal combustion engine; a driven-side rotating body disposed coaxially with a rotation axis of the driving-side rotating body and rotating integrally with a valve opening and closing camshaft; advancing and retarding chambers formed between the driving-side and driven-side rotating bodies; a control valve unit controlling supply and discharge of a fluid to and from the advancing and retarding chambers; and a check valve unit disposed upstream of the control valve unit in a supply flow passage. A pressure space is provided between the control valve and check valve units, the control valve unit has a flow passage structure, and the check valve unit includes a supply flow passage and a return check valve.Type: GrantFiled: November 6, 2019Date of Patent: June 22, 2021Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Takeo Asahi, Yuji Noguchi, Kazuo Ueda
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Publication number: 20210172347Abstract: A valve opening and closing timing control device includes: a drive-side rotary body rotating synchronously with a crankshaft; a driven-side rotary body provided inside the drive-side rotary body coaxially and rotating integrally with a camshaft; advance and retard chambers formed between the drive-side and driven-side rotary bodies; a lock mechanism switchable between a lock state and a lock release state; a valve unit including a fluid supply pipe into which fluid is supplied and a spool movable along a direction of the rotation axis, and controlling supply of the fluid to and from the lock mechanism, and the advance and retard chambers; and a tubular valve case having an internal space inside the driven-side rotary body and housing the valve unit in the internal space. A first opening portion is formed in the fluid supply pipe. A second opening portion is formed in the valve case.Type: ApplicationFiled: December 3, 2020Publication date: June 10, 2021Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Kazuo UEDA, Yuji NOGUCHI, HIROKAZU NONOGAKI
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Publication number: 20210172346Abstract: A valve opening and closing timing control device includes: a drive-side rotary body rotating synchronously with a crankshaft; a driven-side rotary body provided inside the drive-side rotary body coaxial with the drive-side rotary body and rotating integrally with a camshaft; advance and retard chambers formed between the drive-side and driven-side rotary bodies; a valve unit including a spool and controlling supply and discharge of fluid to and from the advance and retard chambers; a tubular valve case having an internal space extending along the rotation axis inside the driven-side rotary body and housing the valve unit; first and second drain flow paths through which the fluid is discharged from one and the other of the advance and retard chambers, respectively, through the spool. The first drain and second drain flow paths extend in directions intersecting each other at different positions in the rotation axis direction.Type: ApplicationFiled: December 3, 2020Publication date: June 10, 2021Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Kazuo UEDA, Yuji NOGUCHI, Yoshihiro KAWAI, Masaki KOBAYASHI, Tomohiro KAJITA, Jaroslav BECVÁR
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Publication number: 20200141289Abstract: A valve timing controller includes: a driving-side rotating body rotating in synchronization with a crankshaft of an internal combustion engine; a driven-side rotating body disposed coaxially with a rotation axis of the driving-side rotating body and rotating integrally with a valve opening and closing camshaft; advancing and retarding chambers formed between the driving-side and driven-side rotating bodies; a control valve unit controlling supply and discharge of a fluid to and from the advancing and retarding chambers; and a check valve unit disposed upstream of the control valve unit in a supply flow passage. A pressure space is provided between the control valve and check valve units, the control valve unit has a flow passage structure, and the check valve unit includes a supply flow passage and a return check valve.Type: ApplicationFiled: November 6, 2019Publication date: May 7, 2020Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Takeo ASAHI, Yuji NOGUCHI, Kazuo UEDA
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Publication number: 20200141290Abstract: A check valve includes: a wall body in which a communication hole enabling flow of a fluid is formed; a valve body movable to a closed position where the communication hole is closed as the valve body comes into close contact with the wall body or to an open position where the fluid flows through the communication hole as the valve body is separated from the wall body; a spring body urging the valve body in a direction in which the valve body comes into close contact with the wall body; and a spring receiving member receiving a reaction force when the spring body urges the valve body. The spring body is configured as a conical spring, so that a winding diameter of one end portion is larger than a winding diameter of the other end portion in a compression direction.Type: ApplicationFiled: November 6, 2019Publication date: May 7, 2020Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Takeo ASAHI, Yuji NOGUCHI, Kazuo UEDA
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Publication number: 20200011214Abstract: A valve opening-closing timing control device includes a valve case in which an inner space is formed in a direction along a rotational axis, and a valve unit accommodated in the inner space so as to be coaxial with the rotation axis and controlling fluid to and from an advance chamber and a retard chamber. The valve unit includes a check valve on an upstream side to which fluid is supplied. The check valve includes a valve seat in which a flow passage hole through which the fluid flows is formed, and a valve body including a closing portion that can close the flow passage hole. The valve seat includes a first projection portion to surround the flow passage hole. The check valve is closed by the closing portion contacting against the first projection portion, and is opened by the closing portion being separated from the first projection portion.Type: ApplicationFiled: May 30, 2019Publication date: January 9, 2020Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Kenta SAKAGUCHI, Takeo ASAHI, Kazuo UEDA, Tomohiro KAJITA, Yusei SHINPO
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Patent number: 10351354Abstract: A lifting facility for a workpiece is provided in a drying furnace for drying the workpiece, and comprises: a drop lift that conveys the workpiece so as to raise and lower the workpiece between one of a carrying-in position at which the workpiece is carried in the drying furnace and a carrying-out position at which the workpiece is carried out from the drying furnace and a high-temperature zone which is formed above the carrying-in position and the carrying-out position and in which the workpiece is dried; and a strut that supports the drop lift so as to raise and lower the drop lift. The strut is extended to the high-temperature zone in the drying furnace.Type: GrantFiled: August 9, 2016Date of Patent: July 16, 2019Assignee: DAIFUKU CO., LTD.Inventors: Kazuo Ueda, Kiyotoku Sone, Jun Kimura
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Publication number: 20180257874Abstract: A lifting facility for a workpiece is provided in a drying furnace for drying the workpiece, and comprises: a drop lift that conveys the workpiece so as to raise and lower the workpiece between one of a carrying-in position at which the workpiece is carried in the drying furnace and a carrying-out position at which the workpiece is carried out from the drying furnace and a high-temperature zone which is formed above the carrying-in position and the carrying-out position and in which the workpiece is dried; and a strut that supports the drop lift so as to raise and lower the first drop lift. The strut is extended to the high-temperature zone in the drying furnace.Type: ApplicationFiled: August 9, 2016Publication date: September 13, 2018Applicant: DAIFUKU CO., LTD.Inventors: Kazuo UEDA, Kiyotoku SONE, Jun KIMURA
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Publication number: 20170298788Abstract: A valve opening/closing timing control apparatus includes: a driving side rotating body rotating synchronously with a crankshaft of an internal combustion engine; a driven side rotating body included in the driving side rotating body and rotating integrally with a camshaft on a same axis as a rotation axis of the driving side rotating body; a hydraulic fluid control mechanism displacing a relative rotation phase between the driving side rotating body and the driven side rotating body by supplying a hydraulic fluid to one of an advance angle chamber and a retardation angle chamber; a lock mechanism; and first and second unlocking flow paths configured to communicate with the first pressure receiving surface. The lock mechanism includes a lock member including an engaging portion, a main body portion, and a first pressure receiving surface a biasing member, and a lock recess.Type: ApplicationFiled: April 18, 2017Publication date: October 19, 2017Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Hiroyuki AMANO, Takashi IWAYA, Shigehiro TANABE, Hiromitsu SHIGYO, Masaki KOBAYASHI, Kazuo UEDA
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Patent number: 9765654Abstract: A valve opening/closing timing control device includes a driving rotating body that rotates in synchronization with a crankshaft, a driven rotating body that rotates integrally with a camshaft, a phase detection mechanism that detects the relative rotation phase of the driving rotating body and the driven rotating body, a retarding chamber and an advancing chamber between the driving rotating body and the driven rotating body, a lock mechanism capable of constraining the relative rotation phase to a lock phase, a supply/discharge mechanism that supplies/discharges working fluid to/from the advancing chamber, the retarding chamber, and the lock mechanism, and a control unit that controls operation of the supply/discharge mechanism. At startup of the engine, if the detected relative rotation phase is not at the lock phase, the control unit controls the supply/discharge mechanism so as to stop successive supply of working fluid to the retarding and advancing chambers.Type: GrantFiled: December 10, 2014Date of Patent: September 19, 2017Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Masaki Kobayashi, Shohei Masuda, Kazuo Ueda
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Patent number: 9708939Abstract: The valve open/close timing control device includes a housing that rotates synchronously with a crankshaft, an inner rotor that is disposed inside of the housing and rotates integrally with a camshaft, a fluid pressure chamber formed between the housing and the inner rotor, an intermediate lock mechanism capable of switching between a locked state and an unlocked state, an unlocking channel that allows passage of working oil to be supplied to or discharged from the intermediate lock mechanism, a lock discharge channel that allows passage of working oil discharged from the intermediate lock mechanism, and an electromagnetic valve that controls the supply/discharge of the working oil to/from the fluid pressure chamber and the intermediate lock mechanism. With this valve open/close timing control device, the lock discharge channel allows passage of the working oil in the case where the electricity supply amount to the electromagnetic valve is 0 or the maximum.Type: GrantFiled: October 8, 2014Date of Patent: July 18, 2017Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Masaki Kobayashi, Yoshiaki Yamakawa, Kazuo Ueda
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Patent number: 9601888Abstract: The present invention relates to a brush type contact material, including one or more curved metal pawls of which ends come into contact with objects to be contacted. The ends of the pawls have an arc-like cross section in a thickness direction, a curvature radius R1 on a front side from a contact point with the object to be contacted and a curvature radius R2 on a back side from the contact point are formed so as to be R1?R2, and also both ends in a width direction of the pawl are chamfered. At this time, preferably, R1 is larger than R2 (R1>R2), and R1 divided by R2 (R1/R2) is 3.0 or less. The brush type contact material according to the present invention enables a smoother sliding movement than ever before and can be relatively simply manufactured.Type: GrantFiled: December 13, 2013Date of Patent: March 21, 2017Assignee: TANAKA KIKINZOKU KOGYO K.K.Inventors: Kazuo Ueda, Yukimasa Nomura
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Patent number: 9562447Abstract: A valve timing control device includes: a driving side rotating body rotating in synchronization with a crankshaft of an internal combustion engine (E); a driven side rotating body rotating integrally with a camshaft of the internal combustion engine and capable of rotating relative to the driving side rotating body; a fluid pressure chamber formed by the driving side rotating body and the driven side rotating body; a partition portion arranged in the fluid pressure chamber and partitioned into a retard chamber and an advance chamber an intermediate lock mechanism including a concave portion a lock member; and a phase control unit controlling the supply of a fluid to the retard chamber and the discharge of the fluid from the advance chamber or the supply of the fluid to the advance chamber and the discharge of the fluid from the retard chamber.Type: GrantFiled: July 24, 2015Date of Patent: February 7, 2017Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Satoshi Sakata, Masaki Kobayashi, Kazuo Ueda, Shohei Masuda
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Publication number: 20160298504Abstract: The valve open/close timing control device includes a housing that rotates synchronously with a crankshaft, an inner rotor that is disposed inside of the housing and rotates integrally with a camshaft, a fluid pressure chamber formed between the housing and the inner rotor, an intermediate lock mechanism capable of switching between a locked state and an unlocked state, an unlocking channel that allows passage of working oil to be supplied to or discharged from the intermediate lock mechanism, a lock discharge channel that allows passage of working oil discharged from the intermediate lock mechanism, and an electromagnetic valve that controls the supply/discharge of the working oil to/from the fluid pressure chamber and the intermediate lock mechanism. With this valve open/close timing control device, the lock discharge channel allows passage of the working oil in the case where the electricity supply amount to the electromagnetic valve is 0 or the maximum.Type: ApplicationFiled: October 8, 2014Publication date: October 13, 2016Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Masaki KOBAYASHI, Yoshiaki YAMAKAWA, Kazuo UEDA