Patents by Inventor Masaya Komazaki
Masaya Komazaki 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: 10836013Abstract: A coil spring includes a helically formed wire having end turn portions at ends thereof, a plurality of first rough surfaces, each including first shot peening indentations formed on a part of a surface of the end turn portions, and a second rough surface including second shot peening indentations formed on the entire surface of the wire except for the first rough surface. The second rough surface has a surface roughness different from that of the first rough surface.Type: GrantFiled: April 12, 2019Date of Patent: November 17, 2020Assignee: NHK SPRING CO., LTD.Inventors: Senri Moriyama, Satoshi Akiyama, Masaya Komazaki, Go Nagayasu, Hideki Okada, Daisuke Yokota
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Patent number: 10807215Abstract: A coil spring processing device includes an end positioning device, shot peening device, and controller. The end positioning device positions ends of a coil spring. The shot peening device includes a turntable mechanism, pressure mechanism, rotation mechanism which rotates the coil spring, and projection mechanism which projects shots. Holding mechanisms each include a lower shifting prevention jig and an upper shifting prevention jig. The controller stops a first holding mechanism and a second holding mechanism in rotation stop positions corresponding to end turn portions of the coil spring.Type: GrantFiled: August 21, 2018Date of Patent: October 20, 2020Assignee: NHK SPRING CO., LTD.Inventors: Hideki Okada, Daisuke Yokota, Senri Moriyama, Satoshi Akiyama, Masaya Komazaki, Go Nagayasu
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Publication number: 20190232462Abstract: A coil spring includes a helically formed wire having end turn portions at ends thereof, a plurality of first rough surfaces, each including first shot peening indentations formed on a part of a surface of the end turn portions, and a second rough surface including second shot peening indentations formed on the entire surface of the wire except for the first rough surface. The second rough surface has a surface roughness different from that of the first rough surface.Type: ApplicationFiled: April 12, 2019Publication date: August 1, 2019Applicant: NHK SPRING CO., LTD.Inventors: Senri MORIYAMA, Satoshi AKIYAMA, Masaya KOMAZAKI, Go NAGAYASU, Hideki OKADA, Daisuke YOKOTA
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Patent number: 10315287Abstract: A vertical motion impeller-type shot peening device performs a second shot peening to a coil spring including first shot peening indentations. The vertical motion impeller-type shot peening device includes a workpiece holding mechanism including a lower end turn support and an upper end turn support, a stress applying mechanism which compresses the coil spring, a rotation mechanism, and a projection mechanism which includes a pair of vertically movable impeller units. A first rough surface including first shot peening indentations is formed on a part of end turn portions of the coil spring. A second rough surface including second shot peening indentations is formed on the entire surface of wire except for the first rough surface.Type: GrantFiled: February 16, 2017Date of Patent: June 11, 2019Assignee: NHK SPRING CO., LTD.Inventors: Senri Moriyama, Satoshi Akiyama, Masaya Komazaki, Go Nagayasu, Hideki Okada, Daisuke Yokota
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Publication number: 20180354097Abstract: A shot peening device includes a turntable which rotates about a revolution axis, holding mechanism which moves with the turntable, pressure mechanism which compresses a coil spring, rotation mechanism which rotates the coil spring, projection mechanism which projects shots to the compressed coil spring, load cell which detects a load applied to the coil spring, and controller. A signal output from the load cell is input to the controller, and the controller detects a chronological change of the load applied to the coil spring during the shot peening.Type: ApplicationFiled: August 21, 2018Publication date: December 13, 2018Applicant: NHK SPRING CO., LTD.Inventors: Hideki OKADA, Daisuke YOKOTA, Senri MORIYAMA, Satoshi AKIYAMA, Masaya KOMAZAKI, Go NAGAYASU
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Publication number: 20180354098Abstract: A coil spring processing device includes an end positioning device, shot peening device, and controller. The end positioning device positions ends of a coil spring. The shot peening device includes a turntable mechanism, pressure mechanism, rotation mechanism which rotates the coil spring, and projection mechanism which projects shots. Holding mechanisms each include a lower shifting prevention jig and an upper shifting prevention jig. The controller stops a first holding mechanism and a second holding mechanism in rotation stop positions corresponding to end turn portions of the coil spring.Type: ApplicationFiled: August 21, 2018Publication date: December 13, 2018Applicant: NHK SPRING CO., LTD.Inventors: Hideki OKADA, Daisuke YOKOTA, Senri MORIYAMA, Satoshi AKIYAMA, Masaya KOMAZAKI, Go NAGAYASU
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Publication number: 20170157744Abstract: A vertical motion impeller-type shot peening device performs a second shot peening to a coil spring including first shot peening indentations. The vertical motion impeller-type shot peening device includes a workpiece holding mechanism including a lower end turn support and an upper end turn support, a stress applying mechanism which compresses the coil spring, a rotation mechanism, and a projection mechanism which includes a pair of vertically movable impeller units. A first rough surface including first shot peening indentations is formed on a part of end turn portions of the coil spring. A second rough surface including second shot peening indentations is formed on the entire surface of wire except for the first rough surface.Type: ApplicationFiled: February 16, 2017Publication date: June 8, 2017Applicant: NHK SPRING CO., LTD.Inventors: Senri MORIYAMA, Satoshi AKIYAMA, Masaya KOMAZAKI, Go NAGAYASU, Hideki OKADA, Daisuke YOKOTA
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Patent number: 6460835Abstract: Provided is a wheel suspension system (4) and a spring (6, 16, 26) therefor which can improve the ride comfort of the vehicle by reducing the sliding resistance between the cylinder and the piston of the tubular shock absorber (5) surrounded by the compression coil spring without increasing the size of the suspension system and without complicating the assembly work. The compression coil spring is adapted to produce lateral forces between two ends thereof as the compression coil spring is extended and compressed by forming the coil spring so as to have cyclically varying pitch angle for each turn of the coil wire.Type: GrantFiled: March 21, 2000Date of Patent: October 8, 2002Assignee: NHK Spring Co., Ltd.Inventors: Toshio Hamano, Hirotake Kato, Iwao Shigeoka, Takahiro Nakamura, Toshiyuki Kamakura, Masaya Komazaki
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Patent number: D764385Type: GrantFiled: July 22, 2014Date of Patent: August 23, 2016Assignee: NHK SPRING CO., LTD.Inventors: Masaya Komazaki, Go Nagayasu
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Patent number: D786172Type: GrantFiled: April 7, 2016Date of Patent: May 9, 2017Assignee: NHK SPRING CO., LTD.Inventors: Masaya Komazaki, Go Nagayasu
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Patent number: D787421Type: GrantFiled: April 7, 2016Date of Patent: May 23, 2017Assignee: NHK SPRING CO., LTD.Inventors: Masaya Komazaki, Go Nagayasu
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Patent number: D788018Type: GrantFiled: April 7, 2016Date of Patent: May 30, 2017Assignee: NHK SPRING CO., LTD.Inventors: Masaya Komazaki, Go Nagayasu