Patents by Inventor Akira Yoshinaga
Akira Yoshinaga 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: 11969712Abstract: A catalyst for purification of exhaust gas in which Pd-based nanoparticles and ceria nanoparticles are supported on a composite metal oxide support containing alumina, ceria, and zirconia, wherein a molar ratio (Ce/Pd) of Ce and Pd supported on the support is 1 to 8, a proximity ? between Pd and Ce is 0.15 to 0.50, wherein the proximity ? is determined, based on Pd and Ce distribution maps in an element mapping image of energy dispersive X-ray analysis, by the following formula (1): ? = ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( ( I ? ( i , j ) - I ave ) ? ( T ? ( i , j ) - T ave ) ) ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( I ? ( i , j ) - I ave ) 2 - ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( T ? ( i , j ) - T ave ) 2 , ( 1 ) a Pd dispersity after a heat-resistance test at 1050° C. for 25 hours is 0.8% or more.Type: GrantFiled: November 2, 2022Date of Patent: April 30, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naoki Kumatani, Akira Morikawa, Masaoki Iwasaki, Miho Hatanaka, Taizo Yoshinaga, Masahide Miura, Takahiro Hayashi
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Patent number: 10464242Abstract: A convey device, which conveys an insert member into a die, includes a holding device configured to hold the insert member in an attitude in which a major surface of the insert member is in a substantially gravitational direction; a convey mechanism configured to convey the insert member to the die, while the insert member is being held in the attitude by the holding device; and a heating device configured to heat the insert member. The insert member can be heated by the heating device before the insert member is disposed in the die.Type: GrantFiled: December 3, 2018Date of Patent: November 5, 2019Assignee: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Jun Koike, Akira Yoshinaga, Nobuyuki Asanuma
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Publication number: 20190099929Abstract: A convey device, which conveys an insert member into a die, includes a holding device configured to hold the insert member in an attitude in which a major surface of the insert member is in a substantially gravitational direction; a convey mechanism configured to convey the insert member to the die, while the insert member is being held in the attitude by the holding device; and a heating device configured to heat the insert member. The insert member can be heated by the heating device before the insert member is disposed in the die.Type: ApplicationFiled: December 3, 2018Publication date: April 4, 2019Applicant: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Jun KOIKE, Akira YOSHINAGA, Nobuyuki ASANUMA
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Patent number: 10179432Abstract: A convey device, which conveys an insert member into a die, includes a holding device configured to hold the insert member in an attitude in which a major surface of the insert member is in a substantially gravitational direction; a convey mechanism configured to convey the insert member to the die, while the insert member is being held in the attitude by the holding device; and a heating device configured to heat the insert member. The insert member can be heated by the heating device before the insert member is disposed in the die.Type: GrantFiled: June 17, 2015Date of Patent: January 15, 2019Assignee: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Jun Koike, Akira Yoshinaga, Nobuyuki Asanuma
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Publication number: 20150283740Abstract: A convey device, which conveys an insert member into a die, includes a holding device configured to hold the insert member in an attitude in which a major surface of the insert member is in a substantially gravitational direction; a convey mechanism configured to convey the insert member to the die, while the insert member is being held in the attitude by the holding device; and a heating device configured to heat the insert member. The insert member can be heated by the heating device before the insert member is disposed in the die.Type: ApplicationFiled: June 17, 2015Publication date: October 8, 2015Inventors: Jun KOIKE, Akira YOSHINAGA, Nobuyuki ASANUMA
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Patent number: 8668050Abstract: A lubrication-condition detector detects a lubricant shortage of a target portion that repeats a predetermined operation at a predetermined cycle. The lubrication-condition detector includes: a physical-quantity measuring unit for continuously measuring a physical quantity related to the target portion; and a computer for determining a presence of a lubricant shortage based on the physical quantity. The computer includes: a cycle extractor for extracting a cycle datum per an operational cycle from continuous data including the physical quantity and its measuring time; a representative-value calculator for calculating a representative value for each of plural cycle data; and determining unit for determining a presence of a lubricant shortage based on the plural representative values.Type: GrantFiled: June 7, 2013Date of Patent: March 11, 2014Assignee: Toshiba Kikai Kabushiki KaishaInventors: Harumichi Tokuyama, Masahiko Mori, Makoto Takami, Haruhiko Kikuchi, Akira Yoshinaga, Noriyuki Sasaki, Shinya Itani
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Publication number: 20130269422Abstract: A lubrication-condition detector detects a lubricant shortage of a target portion that repeats a predetermined operation at a predetermined cycle. The lubrication-condition detector includes: a physical-quantity measuring unit for continuously measuring a physical quantity related to the target portion; and a computer for determining a presence of a lubricant shortage based on the physical quantity. The computer includes: a cycle extractor for extracting a cycle datum per an operational cycle from continuous data including the physical quantity and its measuring time; a representative-value calculator for calculating a representative value for each of plural cycle data; and determining unit for determining a presence of a lubricant shortage based on the plural representative values.Type: ApplicationFiled: June 7, 2013Publication date: October 17, 2013Inventors: Harumichi TOKUYAMA, Masahiko MORI, Makoto Takami, Haruhiko KIKUCHI, Akira YOSHINAGA, Noriyuki SASAKI, Shinya ITANI
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Patent number: 8479886Abstract: A lubrication-condition detector detects a lubricant shortage of a target portion that repeats a predetermined operation at a predetermined cycle. The lubrication-condition detector includes: a physical-quantity measuring unit for continuously measuring a physical quantity related to the target portion; and a computer for determining a presence of a lubricant shortage based on the physical quantity. The computer includes: a cycle extractor for extracting a cycle datum per an operational cycle from continuous data including the physical quantity and its measuring time; a representative-value calculator for calculating a representative value for each of plural cycle data; and determining unit for determining a presence of a lubricant shortage based on the plural representative values.Type: GrantFiled: April 10, 2008Date of Patent: July 9, 2013Assignee: Toshiba Kikai Kabushiki KaishaInventors: Harumichi Tokuyama, Masahiko Mori, Makoto Takami, Haruhiko Kikuchi, Akira Yoshinaga, Noriyuki Sasaki, Shinya Itani
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Publication number: 20080271949Abstract: A lubrication-condition detector detects a lubricant shortage of a target portion that repeats a predetermined operation at a predetermined cycle. The lubrication-condition detector includes: a physical-quantity measuring unit for continuously measuring a physical quantity related to the target portion; and a computer for determining a presence of a lubricant shortage based on the physical quantity. The computer includes: a cycle extractor for extracting a cycle datum per an operational cycle from continuous data including the physical quantity and its measuring time; a representative-value calculator for calculating a representative value for each of plural cycle data; and determining unit for determining a presence of a lubricant shortage based on the plural representative values.Type: ApplicationFiled: April 10, 2008Publication date: November 6, 2008Applicant: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: HARUMICHI TOKUYAMA, Masahiko Mori, Makoto Takami, Haruhiko Kikuchi, Akira Yoshinaga, Noriyuki Sasaki, Shinya Itani
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Publication number: 20080110507Abstract: A check ring is mounted around a shaft of a screw tip that is mounted on a front part of a screw, whereby a resin is prevented from flowing back from ahead of a conical portion toward the screw. Projections are provided on a front end surface of the check ring. In measurement, a rear end surface of the conical portion of the screw tip and respective end surfaces of the projections are brought into contact with one another, whereby gaps are created between the screw tip and respective root surfaces of teeth of the check ring. By doing this, resin passages can be secured around contact surfaces between the rear end surface of the screw tip and the respective end surfaces of the projections of the check ring.Type: ApplicationFiled: November 13, 2007Publication date: May 15, 2008Applicant: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Akira Yoshinaga, Shigehiro Saito, Haruyuki Matsubayashi, Keisuke Mori, Jun Koike
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Patent number: 6984120Abstract: An object of the present invention is to suppress a clamping force from sharply increasing when dies are clamped in an electric direct-acting die clamping unit of an injection molding machine. A movable platen is arranged to face a stationary platen. A stationary die is attached to the front surface of the stationary platen, whereas a movable die is attached to the front surface of the movable platen. The movable platen is connected to the front surface of a backup plate via four coil springs. A nut of a ball screw is fixed at each of diagonally-opposed corners of the backup plate. The threaded rod of the ball screw passes through the backup plate via the nut. The tip portion of the threaded rod is rotatably connected to the stationary platen. The rear end portion of the threaded rod is connected to a motor.Type: GrantFiled: April 16, 2002Date of Patent: January 10, 2006Assignee: Toshiba Machine Co., LTDInventors: Akira Yoshinaga, Jun Koike, Fumiyuki Kato, Makoto Nishizawa
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Patent number: 6914537Abstract: The present invention is directed to a method of monitoring operation data for quality control with a little possibility that a nondefective product is mistakenly determined as a defective product even if the operation data fluctuates in a large waviness curve. Every time an operation data piece for quality control is obtained, a moving average of the predetermined number of data pieces lately obtained is calculated. When the deviation of a data piece from the moving average exceeds the tolerance limit, an alarm is generated. By employing the method of the present invention for monitoring operation data such as charging time, injection time and the amount of cushion in an injection-molding machine, the accuracy of determination as to a defective or nondefective can be improved.Type: GrantFiled: May 21, 2002Date of Patent: July 5, 2005Assignee: Toshiba Machine Co., Ltd.Inventors: Akira Yoshinaga, Makoto Nishizawa, Fumiyuki Kato, Jun Koike, Hiroshi Katsuta
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Publication number: 20040186607Abstract: A display device of an industrial machine that operates in accordance with an operating condition according to an aspect of the invention includes a unit which inputs a state of an operating quality for a change in the operating condition, a unit which stores history data indicative of the change in the operating condition and the state of the operating quality corresponding to the change, and a unit which displays the history data.Type: ApplicationFiled: January 29, 2004Publication date: September 23, 2004Applicant: TOSHIBA MACHINE CO., LTD.Inventors: Akira Yoshinaga, Jun Koike, Fumiyuki Katoh, Makoto Nishizawa
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Publication number: 20030059493Abstract: A direct type clamping assembly for a motorized injection molding machine to maintain a clamping force for a predetermined time without causing motor stalling is disclosed. A stationary platen and back plate are fixedly attached to a base, and a movable platen is slidingly associated with the base. A housing is disposed in front of the back plate with coil springs disposed between the housing and the back plate. A nut of a ball-screw assembly is rotatably accommodated in the housing with a bearing. When the ball-screw assembly is rotatably driven, the movable platen moves forward, stopping when a mold is completely joined together. The housing can accordingly move backward as the ball-screw assembly is further rotatably driven, compressing the coil springs and generating and maintaining the clamping force. Slight rotation of the motor prevents motor stalling, and the resulting slight movement of the housing scarcely influences the clamping force.Type: ApplicationFiled: March 15, 2002Publication date: March 27, 2003Inventors: Akira Yoshinaga, Jun Koike, Tatsuhiko Maru, Fumiyuki Kato, Makoto Nishizawa
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Publication number: 20030017230Abstract: Provided is a clamping unit for die clamping with a die-clamping force directly applied to dies consisting of a stationary die and a movable die, including a stationary platen for holding the stationary die, a movable platen for holding the movable die, the movable platen being disposed opposite to the stationary platen, and a linear guiding system for guiding the movement of the movable platen.Type: ApplicationFiled: July 12, 2002Publication date: January 23, 2003Inventors: Akira Yoshinaga, Tatsuhiko Maru, Jun Koike, Fumiyuki Kato, Makoto Nishizawa
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Publication number: 20020176908Abstract: An object of the present invention is to provide an electric direct-acting die clamping unit of an injection molding machine whose entire length can be reduced. A movable platen is arranged to face a stationary platen. A stationary die is attached to the stationary platen, whereas a movable die is attached to the movable platen. The movable platen is connected to the front of the backup plate. A nut of a ball screw is fixed at each of diagonally-opposed corners of the backup plate. The threaded rod of the ball screw passes through the backup plate via the nut. The tip portion of the threaded rod is rotatably connected to the stationary platen. The rear end portion of the threaded rod is threaded through a support plate via the bearing and connected to a motor.Type: ApplicationFiled: April 24, 2002Publication date: November 28, 2002Inventors: Akira Yoshinaga, Jun Koike, Tatsuhiko Maru, Fumiyuki Kato, Makoto Nishizawa
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Publication number: 20020177921Abstract: The present invention is directed to a method of monitoring operation data for quality control with a little possibility that a nondefective product is mistakenly determined as a defective product even if the operation data fluctuates in a large waviness curve. Every time an operation data piece for quality control is obtained, a moving average of the predetermined number of data pieces lately obtained is calculated. When the deviation of a data piece from the moving average exceeds the tolerance limit, an alarm is generated. By employing the method of the present invention for monitoring operation data such as charging time, injection time and the amount of cushion in an injection-molding machine, the accuracy of determination as to a defective or nondefective can be improved.Type: ApplicationFiled: May 21, 2002Publication date: November 28, 2002Applicant: TOSHIBA MACHINE CO., LTD.Inventors: Akira Yoshinaga, Makoto Nishizawa, Fumiyuki Kato, Jun Koike, Hiroshi Katsuta
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Publication number: 20020164396Abstract: An object of the present invention is to suppress clamping force from sharply increasing when dies are clamped in an electric direct-acting die clamping unit of an injection molding machine. A stationary platen and a back plate are arranged at both ends of a base. A movable platen is arranged to face a stationary platen. A stationary die is attached to the stationary platen, whereas a movable die is attached to the movable platen. The tip portion of a threaded rod of a ball screw is fixed at the back surface of the movable platen via a load cell. A nut of the ball screw is accommodated in a housing and supported by the bearing. The housing is connected to the front surface of the back plate via the coil spring. When the nut is rotated the threaded rod is driven to move the movable platen back and forth.Type: ApplicationFiled: April 16, 2002Publication date: November 7, 2002Inventors: Akira Yoshinaga, Jun Koike, Fumiyuki Kato, Makoto Nishizawa
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Publication number: 20020164395Abstract: An object of the present invention is to suppress a clamping force from sharply increasing when dies are clamped in an electric direct-acting die clamping unit of an injection molding machine. A movable platen is arranged to face a stationary platen. A stationary die is attached to the front surface of the stationary platen, whereas a movable die is attached to the front surface of the movable platen. The movable platen is connected to the front surface of a backup plate via four coil springs. A nut of a ball screw is fixed at each of diagonally-opposed corners of the backup plate. The threaded rod of the ball screw passes through the backup plate via the nut. The tip portion of the threaded rod is rotatably connected to the stationary platen. The rear end portion of the threaded rod is connected to a motor.Type: ApplicationFiled: April 12, 2002Publication date: November 7, 2002Inventors: Akira Yoshinaga, Jun Koike, Fumiyuki Kato, Makoto Nishizawa