Patents by Inventor Shinji Usami
Shinji Usami 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: 10156218Abstract: An engine start system which may be employed in automotive idle stop systems. To start an engine, the system brings a pinion gear into engagement with a ring gear coupled to the engine and turns on an electric motor to rotate the ring gear through the pinion gear to crank the engine. When it is requested to start the engine during deceleration of the engine before stop thereof, the system thrusts the pinion into engagement with the ring gear and then turns on the motor to rotate the pinion gear, in other words, delays the activation of the motor until after the pinion gear has engaged the ring gear. This minimizes mechanical impact or noise arising from the engagement of the pinion gear with the ring gear and improves the reliability in engagement with the ring gear during the deceleration of the engine and durability of the system.Type: GrantFiled: July 2, 2015Date of Patent: December 18, 2018Assignee: DENSO CORPORATIONInventors: Mitsuhiro Murata, Hideya Notani, Shinji Usami, Mikio Saito, Yasuyuki Yoshida
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Publication number: 20150300311Abstract: An engine start system which may be employed in automotive idle stop systems. To start an engine, the system brings a pinion gear into engagement with a ring gear coupled to the engine and turns on an electric motor to rotate the ring gear through the pinion gear to crank the engine. When it is requested to start the engine during deceleration of the engine before stop thereof, the system thrusts the pinion into engagement with the ring gear and then turns on the motor to rotate the pinion gear, in other words, delays the activation of the motor until after the pinion gear has engaged the ring gear. This minimizes mechanical impact or noise arising from the engagement of the pinion gear with the ring gear and improves the reliability in engagement with the ring gear during the deceleration of the engine and durability of the system.Type: ApplicationFiled: July 2, 2015Publication date: October 22, 2015Inventors: Mitsuhiro MURATA, Hideya NOTANI, Shinji USAMI, Mikio SAITO, Yasuyuki YOSHIDA
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Patent number: 9097230Abstract: An engine start system which may be employed in automotive idle stop systems. To start an engine, the system brings a pinion gear into engagement with a ring gear coupled to the engine and turns on an electric motor to rotate the ring gear through the pinion gear to crank the engine. When it is requested to start the engine during deceleration of the engine before stop thereof, the system thrusts the pinion into engagement with the ring gear and then turns on the motor to rotate the pinion gear, in other words, delays the activation of the motor until after the pinion gear has engaged the ring gear. This minimizes mechanical impact or noise arising from the engagement of the pinion gear with the ring gear and improves the reliability in engagement with the ring gear during the deceleration of the engine and durability of the system.Type: GrantFiled: October 23, 2013Date of Patent: August 4, 2015Assignee: DENSO CORPORATIONInventors: Mitsuhiro Murata, Hideya Notani, Shinji Usami, Mikio Saito, Yasuyuki Yoshida
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Patent number: 8985080Abstract: An engine start system which may be employed in automotive idle stop systems. To start an engine, the system brings a pinion gear into engagement with a ring gear coupled to the engine and turns on an electric motor to rotate the ring gear through the pinion gear to crank the engine. When it is requested to start the engine during deceleration of the engine before stop thereof, the system thrusts the pinion into engagement with the ring gear and then turns on the motor to rotate the pinion gear, in other words, delays the activation of the motor until after the pinion gear has engaged the ring gear. This minimizes mechanical impact or noise arising from the engagement of the pinion gear with the ring gear and improves the reliability in engagement with the ring gear during the deceleration of the engine and durability of the system.Type: GrantFiled: April 6, 2010Date of Patent: March 24, 2015Assignee: Denso CorporationInventors: Mitsuhiro Murata, Hideya Notani, Shinji Usami, Mikio Saito, Yasuyuki Yoshida
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Publication number: 20140041613Abstract: An engine start system which may be employed in automotive idle stop systems. To start an engine, the system brings a pinion gear into engagement with a ring gear coupled to the engine and turns on an electric motor to rotate the ring gear through the pinion gear to crank the engine. When it is requested to start the engine during deceleration of the engine before stop thereof, the system thrusts the pinion into engagement with the ring gear and then turns on the motor to rotate the pinion gear, in other words, delays the activation of the motor until after the pinion gear has engaged the ring gear. This minimizes mechanical impact or noise arising from the engagement of the pinion gear with the ring gear and improves the reliability in engagement with the ring gear during the deceleration of the engine and durability of the system.Type: ApplicationFiled: October 23, 2013Publication date: February 13, 2014Applicant: DENSO CORPORATIONInventors: Mitsuhiro MURATA, Hideya NOTANI, Shinji USAMI, Mikio SAITO, Yasuyuki YOSHIDA
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Patent number: 8610296Abstract: A starter to start an engine mounted on a vehicle provides an electromagnetic solenoid to push a pinion gear towards a ring gear side, an electromagnetic switch to open and close a motor contact point. The electromagnetic solenoid and the electromagnetic switch are individually controlled by an Electronic Control Unit i.e., ECU. When an idle-stop is triggered, the ECU controls a starter relay to be closed during the ring gear is rotating whereby the pinion gear together with a clutch are pushed out to counter-motor direction by the electromagnetic solenoid. As a result, the pinion gear meshes with the ring gear that is rotating at lower rotational speed. Therefore, the inertial mass of the starter is added to the ring gear so that swinging of the engine can be suppressed.Type: GrantFiled: March 26, 2010Date of Patent: December 17, 2013Assignee: Denso CorporationInventors: Shinji Usami, Mitsuhiro Murata, Masami Niimi
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Patent number: 8567364Abstract: A starter for an engine is equipped with a planetary gear speed reducer, a restraining mechanism, and a shock absorber which is made up of a rotary disc, a stationary disc, a case, and a load applying mechanism. The load applying mechanism applies a load to the stationary and rotary discs to develop a given degree of friction therebetween. When an excessive torque acts on the rotary disc through the internal gear, the shock absorber induces the rotary disc to rotate against the given degree of friction to absorb the torque to eliminate a physical impact to be exerted on the planetary gear speed reducer. The restraining mechanism restrains the load applying mechanism from moving in a radius direction of the internal thread to avoid undesirable engagement of the load applying mechanism with the internal thread, thereby ensuring the stability in applying the load to the stationary and rotary discs.Type: GrantFiled: October 20, 2009Date of Patent: October 29, 2013Assignee: Denso CorporationInventors: Shinji Usami, Sadayoshi Kajino, Youichi Hasegawa
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Patent number: 8476777Abstract: A starter includes an electromagnetic solenoid that generates force for pushing a pinion gear 6 to a ring gear side, and an electromagnetic switch that opens and closes a motor contact point. When idle-stop is performed, an ECU energizes a solenoid coil of the electromagnetic solenoid during inertial rotation until the ring gear stops rotating. After rotation of an engine is stopped, the ECU stops energizing the solenoid coil. As a result, in the starter, the pinion gear can mesh with the ring gear that is rotating by inertia without use of the rotational force of a motor. The meshed state can be maintained even after energization of the solenoid coil is stopped.Type: GrantFiled: March 26, 2010Date of Patent: July 2, 2013Assignee: Denso CorporationInventors: Shinji Usami, Mitsuhiro Murata, Masami Niimi
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Patent number: 8426989Abstract: A solenoid for pushing out a pinion pushes out a pinion gear to a ring gear side and a switch for motor energization that opens and closes a motor point of contact have a solenoid coil and a switch coil that form an electromagnet by energization, respectively. A fixed iron core used commonly by both coils is arranged between the solenoid coil and the switch coil. A solenoid yoke that covers a perimeter of the solenoid and a switch yoke that covers a perimeter of the switch are formed integrally as a whole yoke in an axial direction.Type: GrantFiled: April 12, 2010Date of Patent: April 23, 2013Assignee: Denso CorporationInventors: Shinji Usami, Yasuyuki Yoshida, Mitsuhiro Murata, Masami Niimi
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Publication number: 20120326507Abstract: An apparatus for converting power of a power source used for a main unit mounted on a vehicle includes: a first circuit that converts the power into a first power and supplies the first power to a first auxiliary unit mounted on the vehicle; a second circuit that converts the power into a second power and supplies the second power to a second auxiliary unit mounted on the vehicle; a first board on which the first circuit is mounted; a second board on which the second circuit is mounted; and a connecting member that electrically connects between the first board and the second board to allow the power of the power source to be conducted therebetween.Type: ApplicationFiled: June 27, 2012Publication date: December 27, 2012Applicant: DENSO CORPORATIONInventors: Shinji Usami, Masakazu Tago, Atsuyuki Hiruma
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Patent number: 8299639Abstract: In a starter for starting an internal combustion engine with a first output shaft to which a ring gear is coupled, a motor has a second output shaft to which a movable pinion member is coupled and is operative to, when energized, rotate the second output shaft. A solenoid device includes a solenoid actuator linked to the movable pinion member. The solenoid actuator is configured to, when activated, shift the movable pinion member toward the ring gear to be engaged with the ring gear. The solenoid device includes a solenoid switch configure to, when activated, energize the motor. The solenoid actuator and the solenoid switch are integrated with each other to provide the solenoid device. A controller module is configured to individually control an activation of the solenoid actuator and an activation of the solenoid switch. The controller module is mounted on the solenoid device.Type: GrantFiled: April 14, 2010Date of Patent: October 30, 2012Assignee: Denso CorporationInventors: Shinji Usami, Yasuyuki Yoshida, Mitsuhiro Murata, Masami Niimi, Hideya Notani, Kazushige Okumoto, Akira Kato, Mikio Saito
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Patent number: 8143979Abstract: Terminal-bolts and a fixed contact are formed with different kinds of metals, and fixed to a fixing hole formed in the fixed contact by press fitting one end of the terminal-bolts. A plurality of concavo-convex parts is provided on a surface of the fixed contact that faces the movable contact. A plurality of concavo-convex portions is provided on another surface of the fixed contact that faces an anti movable-contact side. The concavo-convex portions are arranged so that positions of concave parts of the concavo-convex portions match positions of convex parts of the concavo-convex portions provided in the opposite surface of the fixed contact. The concavo-convex parts are at least partly curved, and have the same height and project in a height direction from the fixed contact.Type: GrantFiled: June 25, 2010Date of Patent: March 27, 2012Assignee: Denso CorporationInventors: Shinji Usami, Masami Niimi, Mitsuhiro Murata, Mikio Saitoh
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Patent number: 8004703Abstract: An image data obtaining system storing image data optically read from a digital compound machine into a database managed by a server connected to the digital compound machine via a network. The digital compound machine includes: a unit configured to generate an input screen based on input screen configuration information received from the server beforehand; a unit configured to send, to the server, the image data, image data information and a DB key value, wherein the image data information is for associating the image data with the input screen configuration information and is input from the input screen, and wherein the DB key value is for associating the database with the input screen configuration information. The server includes a unit configured to store the image data and/or the image data information into the database associating the image data and/or the image data information with the DB key value.Type: GrantFiled: July 20, 2005Date of Patent: August 23, 2011Assignees: Ricoh Company, Ltd., Otsuka Corporation, Osk Co., Ltd.Inventors: Noriko Asami, Kohji Kanbara, Junichi Ota, Toshimichi Ooura, Yasushi Okada, Yoshiroh Someya, Shinji Usami, Mamoru Murata, Kenichi Maekawa, Mitsuru Fukushima
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Patent number: 7978035Abstract: A magnet switch which may be employed in automotive engine starters is provided. The magnet switch includes a stationary magnetic core made up of a disc assembly and a core body. The disc assembly is made of a stack of annular plate members superposed on each other. Each of the plate members has an opening through which a terminal lead of a magnetic coil extends. The core body has a boss with an edge which is plastically deformed outwardly in the radius direction thereof or staked to create an elastic nip which retains the stack of the plate members firmly on the core body. This structure ensures the joint between the disc assembly and the core body to withstand mechanical impact exerted on the magnetic core and stability in operation of the magnet switch without increasing a total production cost of the magnetic switch.Type: GrantFiled: July 30, 2008Date of Patent: July 12, 2011Assignee: Denso CorporationInventors: Shinji Usami, Tomohiro Teramachi
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Publication number: 20110001589Abstract: Terminal-bolts and a fixed contact are formed with different kinds of metals, and fixed to a fixing hole formed in the fixed contact by press fitting one end of the terminal-bolts. A plurality of concavo-convex parts is provided on a surface of the fixed contact that faces the movable contact. A plurality of concavo-convex portions is provided on another surface of the fixed contact that faces an anti movable-contact side. The concavo-convex portions are arranged so that positions of concave parts of the concavo-convex portions match positions of convex parts of the concavo-convex portions provided in the opposite surface of the fixed contact. The concavo-convex parts are at least partly curved, and have the same height and project in a height direction from the fixed contact.Type: ApplicationFiled: June 25, 2010Publication date: January 6, 2011Applicant: DENSO CORPORATIONInventors: Shinji USAMI, Masami NIIMI, Mitsuhiro MURATA, Mikio SAITOH
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Publication number: 20100264670Abstract: In a starter for starting an internal combustion engine with a first output shaft to which a ring gear is coupled, a motor has a second output shaft to which a movable pinion member is coupled and is operative to, when energized, rotate the second output shaft. A solenoid device includes a solenoid actuator linked to the movable pinion member. The solenoid actuator is configured to, when activated, shift the movable pinion member toward the ring gear to be engaged with the ring gear. The solenoid device includes a solenoid switch configure to, when activated, energize the motor. The solenoid actuator and the solenoid switch are integrated with each other to provide the solenoid device. A controller module is configured to individually control an activation of the solenoid actuator and an activation of the solenoid switch. The controller module is mounted on the solenoid device.Type: ApplicationFiled: April 14, 2010Publication date: October 21, 2010Applicant: DENSO CORPORATIONInventors: Shinji Usami, Yasuyuki Yoshida, Mitsuhiro Murata, Masami Niimi, Hideya Notani, Kazushige Okumoto, Akira Kato, Mikio Saito
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Publication number: 20100264764Abstract: A solenoid for pushing out a pinion pushes out a pinion gear to a ring gear side and a switch for motor energization that opens and closes a motor point of contact have a solenoid coil and a switch coil that form an electromagnet by energization, respectively. A fixed iron core used commonly by both coils is arranged between the solenoid coil and the switch coil. A solenoid yoke that covers a perimeter of the solenoid and a switch yoke that covers a perimeter of the switch are formed integrally as a whole yoke in an axial direction.Type: ApplicationFiled: April 12, 2010Publication date: October 21, 2010Applicant: DENSO CORPORATIONInventors: Shinji USAMI, Yasuyuki Yoshida, Mitsuhiro Murata, Masami Niimi
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Publication number: 20100251852Abstract: An engine start system which may be employed in automotive idle stop systems. To start an engine, the system brings a pinion gear into engagement with a ring gear coupled to the engine and turns on an electric motor to rotate the ring gear through the pinion gear to crank the engine. When it is requested to start the engine during deceleration of the engine before stop thereof, the system thrusts the pinion into engagement with the ring gear and then turns on the motor to rotate the pinion gear, in other words, delays the activation of the motor until after the pinion gear has engaged the ring gear. This minimizes mechanical impact or noise arising from the engagement of the pinion gear with the ring gear and improves the reliability in engagement with the ring gear during the deceleration of the engine and durability of the system.Type: ApplicationFiled: April 6, 2010Publication date: October 7, 2010Applicant: DENSO CORPORATIONInventors: Mitsuhiro MURATA, Hideya NOTANI, Shinji USAMI, Mikio SAITO, Yasuyuki YOSHIDA
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Publication number: 20100251853Abstract: A starter includes an electromagnetic solenoid that generates force for pushing a pinion gear 6 to a ring gear side, and an electromagnetic switch that opens and closes a motor contact point. When idle-stop is performed, an ECU energizes a solenoid coil of the electromagnetic solenoid during inertial rotation until the ring gear stops rotating. After rotation of an engine is stopped, the ECU stops energizing the solenoid coil. As a result, in the starter, the pinion gear can mesh with the ring gear that is rotating by inertia without use of the rotational force of a motor. The meshed state can be maintained even after energization of the solenoid coil is stopped.Type: ApplicationFiled: March 26, 2010Publication date: October 7, 2010Applicant: DENSO CORPORATIONInventors: Shinji USAMI, Mitsuhiro MURATA, Masami NIIMI
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Patent number: D633528Type: GrantFiled: December 26, 2007Date of Patent: March 1, 2011Assignee: Denso CorporationInventor: Shinji Usami