Patents by Inventor Tarou Okada
Tarou Okada 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: 10161375Abstract: An apparatus for starting an engine, including a motor, an output shaft driven by the motor, a pinion provided along the output shaft, and an electro-magnetic solenoid device. The electro-magnetic solenoid device is configured to push the pinion axially toward a ring gear of the engine to mesh the pinion with the ring gear and transfer a rotational force, which is referred to as a motor torque, generated by energization of the motor from the pinion to the ring gear, thereby starting the engine. The apparatus is configured such that, at starting of the engine in its warmed-up state, the motor torque can continue to be applied from the pinion to the ring gear until at least the second compression stroke even when an engine speed varies.Type: GrantFiled: August 1, 2017Date of Patent: December 25, 2018Assignee: DENSO CORPORATIONInventors: Tarou Okada, Mitsuhiro Murata
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Patent number: 9938950Abstract: An apparatus for starting an engine, including a motor, an output shaft driven by the motor, a pinion provided along the output shaft, and an electro-magnetic solenoid device. The electro-magnetic solenoid device is configured to push the pinion axially toward a ring gear of the engine to mesh the pinion with the ring gear and transfer a rotational force, which is referred to as a motor torque, generated by energization of the motor from the pinion to the ring gear, thereby starting the engine. The apparatus is configured such that, at starting of the engine in its warmed-up state, the motor torque can continue to be applied from the pinion to the ring gear until at least the second compression stroke even when an engine speed varies.Type: GrantFiled: April 6, 2015Date of Patent: April 10, 2018Assignee: DENSO CORPORATIONInventors: Tarou Okada, Mitsuhiro Murata
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Publication number: 20170328328Abstract: An apparatus for starting an engine, including a motor, an output shaft driven by the motor, a pinion provided along the output shaft, and an electro-magnetic solenoid device. The electro-magnetic solenoid device is configured to push the pinion axially toward a ring gear of the engine to mesh the pinion with the ring gear and transfer a rotational force, which is referred to as a motor torque, generated by energization of the motor from the pinion to the ring gear, thereby starting the engine. The apparatus is configured such that, at starting of the engine in its warmed-up state, the motor torque can continue to be applied from the pinion to the ring gear until at least the second compression stroke even when an engine speed varies.Type: ApplicationFiled: August 1, 2017Publication date: November 16, 2017Applicant: DENSO CORPORATIONInventors: Tarou OKADA, Mitsuhiro MURATA
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Publication number: 20150316017Abstract: An apparatus for starting an engine, including a motor, an output shaft driven by the motor, a pinion provided along the output shaft, and an electro-magnetic solenoid device. The electro-magnetic solenoid device is configured to push the pinion axially toward a ring gear of the engine to mesh the pinion with the ring gear and transfer a rotational force, which is referred to as a motor torque, generated by energization of the motor from the pinion to the ring gear, thereby starting the engine. The apparatus is configured such that, at starting of the engine in its warmed-up state, the motor torque can continue to be applied from the pinion to the ring gear until at least the second compression stroke even when an engine speed varies.Type: ApplicationFiled: April 6, 2015Publication date: November 5, 2015Inventors: Tarou OKADA, Mitsuhiro MURATA
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Patent number: 8400243Abstract: There is an electromagnetic switch for a starter includes a first and second electromagnet and a frame and a cover. The first and second electromagnets are set alongside in the frame. The first and second electromagnets are configured to change a position with respect to the cover by rotating about the axis with respect to the frame.Type: GrantFiled: February 27, 2012Date of Patent: March 19, 2013Assignee: Denso CorporationInventors: Tarou Okada, Mitsuhiro Murata, Takahisa Inagaki, Masami Niimi, Kiyokazu Haruno
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Publication number: 20120218063Abstract: There is an electromagnetic switch for a starter includes a first and second electromagnet and a frame and a cover. The first and second electromagnets are set alongside in the frame. The first and second electromagnets are configured to change a position with respect to the cover by rotating about the axis with respect to the frame.Type: ApplicationFiled: February 27, 2012Publication date: August 30, 2012Applicant: DENSO CORPORATIONInventors: Tarou OKADA, Mitsuhiro MURATA, Takahisa INAGAKI, Masami NIIMI, Kiyokazu HARUNO
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Patent number: 8237524Abstract: A first coil constitutes a first coil unit by placing an iron core plate between the first coil and an auxiliary yokes and engaging stopping parts provided in two holding members to an end surface in an axial direction of the auxiliary yoke. A second coil constitutes a second coil unit by forming magnetic path members by insertion to a resin member provided in a second bobbin unitarily, and fixing two terminals to the resin member. The first and the second coil units are united by connecting one terminal lead line of the first coil taken out from holding members to the first terminal, and connecting another terminal lead line to a surface of the magnetic path member.Type: GrantFiled: September 28, 2010Date of Patent: August 7, 2012Assignee: Denso CorporationInventors: Masami Niimi, Kiyokazu Haruno, Tarou Okada, Hiroaki Higuchi
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Publication number: 20110084786Abstract: A first coil constitutes a first coil unit by placing an iron core plate between the first coil and an auxiliary yokes and engaging stopping parts provided in two holding members to an end surface in an axial direction of the auxiliary yoke. A second coil constitutes a second coil unit by forming magnetic path members by insertion to a resin member provided in a second bobbin unitarily, and fixing two terminals to the resin member. The first and the second coil units are united by connecting one terminal lead line of the first coil taken out from holding members to the first terminal, and connecting another terminal lead line to a surface of the magnetic path member.Type: ApplicationFiled: September 28, 2010Publication date: April 14, 2011Applicant: DENSO CORPORATIONInventors: Masami NIIMI, Kiyokazu HARUNO, Tarou OKADA, Hiroaki HIGUCHI