Patents by Inventor Yasushi Karino
Yasushi Karino 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: 11434964Abstract: This brake lining includes: a plurality of friction members which are arranged to be spaced from each other, each of the friction members having a front surface that is to face a sliding surface of a brake disk; a back board fastened to a back surface of each of the friction members; a base plate that supports each of the friction members at a region including a center portion of each friction member; and an elastic member disposed between the base plate and the back board, on a back surface side of each friction member. Two friction members that are adjacent to each other are taken as a pair, and the back board is fastened to each of the pairs of friction members. In each pair of friction members, the two friction members are arranged along the circumferential direction of the brake disk.Type: GrantFiled: December 21, 2016Date of Patent: September 6, 2022Assignees: NIPPON STEEL CORPORATION, FINE SINTER CO., LTD.Inventors: Takahiro Fujimoto, Atsushi Sakaguchi, Kazutaka Asabe, Kazumichi Kawasaki, Takeshi Nakano, Tokitake Okahira, Yasushi Karino, Hajime Takami
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Publication number: 20200124122Abstract: A brake lining is provided that is to be pressed against a sliding surface of a brake disk fastened to a wheel or an axle of a railway vehicle. The brake lining includes: a plurality of friction members arranged to be spaced from each other, each of the friction members having a front surface that is to face the sliding surface; a back board fastened to a back surface of each of the friction members; and a base plate supporting each friction member at a region including a center portion of the respective friction members. Two friction members are taken as a pair, and the back board that is fastened to the pair of friction members is a one-piece member, and a width of the back board at a space between the friction members of the pair of friction members is greater than a width of the friction member.Type: ApplicationFiled: December 21, 2016Publication date: April 23, 2020Inventors: Takahiro FUJIMOTO, Yuiko SAKAYAMA, Atsushi SAKAGUCHI, Kazutaka ASABE, Takeshi NAKANO, Makoto IKEDA, Isao SHIMAZOE, Yasushi KARINO, Hajime TAKAMI
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Patent number: 10260585Abstract: A brake disc of the present invention is a brake disc that stops the rotation of an axle when a brake pad is pressed on a surface of the brake disc, including a disc main body that is attached to a rotary body integrally rotating with the axle; and a plurality of build-up layers laminated on a surface of the disc main body, in which the build-up layers are laminated on the surface of the disc main body by means of laser metal deposition welding.Type: GrantFiled: September 12, 2014Date of Patent: April 16, 2019Assignees: RAILWAY TECHNICAL RESEARCH INSTITUTE, NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Shin-ichi Saga, Yasushi Karino, Kazutaka Asabe, Atsushi Sakaguchi, Mikio Yoneyama, Yoshihiro Tatsumi
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Publication number: 20190024735Abstract: This brake lining includes: a plurality of friction members which are arranged to be spaced from each other, each of the friction members having a front surface that is to face a sliding surface of a brake disk; a back board fastened to a back surface of each of the friction members; a base plate that supports each of the friction members at a region including a center portion of each friction member; and an elastic member disposed between the base plate and the back board, on a back surface side of each friction member. Two friction members that are adjacent to each other are taken as a pair, and the back board is fastened to each of the pairs of friction members. In each pair of friction members, the two friction members are arranged along the circumferential direction of the brake disk.Type: ApplicationFiled: December 21, 2016Publication date: January 24, 2019Inventors: Takahiro FUJIMOTO, Atsushi SAKAGUCHI, Kazutaka ASABE, Kazumichi KAWASAKI, Takeshi NAKANO, Tokitake OKAHIRA, Yasushi KARINO, Hajime TAKAMI
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Publication number: 20160223041Abstract: A brake disc of the present invention is a brake disc that stops the rotation of an axle when a brake pad is pressed on a surface of the brake disc, including a disc main body that is attached to a rotary body integrally rotating with the axle; and a plurality of build-up layers laminated on a surface of the disc main body, in which the build-up layers are laminated on the surface of the disc main body by means of laser metal deposition welding.Type: ApplicationFiled: September 12, 2014Publication date: August 4, 2016Applicants: RAILWAY TECHNICAL RESEARCH INSTITUTE, NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Shin-ichi SAGA, Yasushi KARINO, Kazutaka ASABE, Atsushi SAKAGUCHI, Mikio YONEYAMA, Yoshihiro TATSUMI
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Patent number: 9394953Abstract: A disc brake for railway vehicles includes a brake disc fixed to a wheel or an axle of a railway vehicle and a brake lining configured to be pressed against a frictional surface of the brake disc by a brake caliper. The brake lining includes a plurality of friction members arranged to be spaced from each other, each of the friction members having a surface that faces the frictional surface of the brake disc, a metallic backing secured to back surfaces of the friction members, and a base plate supporting the friction members on the back surface side via spring members. The base plate is mounted to a brake caliper; wherein the friction members are provided in pairs with each pair being formed by two adjacent ones of the friction members, and the metallic backing is a one-piece member provided for each pair of the friction members.Type: GrantFiled: May 31, 2012Date of Patent: July 19, 2016Assignees: NIPPON STEEL & SUMITOMO METAL CORPORATION, RAILWAY TECHNICAL RESEARCH INSTITUTE, FINE SINTER CO., LTD.Inventors: Takanori Kato, Takahiro Fujimoto, Kazutaka Asabe, Atsushi Sakaguchi, Yasushi Karino, Shin-ichi Saga, Takashi Maejima, Satoru Nakano, Takeshi Nakano
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Patent number: 9327702Abstract: A caliper brake device includes a brake shoe for exerting a friction force by sliding in contact with a disk, a caliper main body fixed to a vehicle and an actuator for pressing the brake shoe against the disk. The actuator includes an elastic film fixed to the caliper main body, a drive pressure chamber defined by the elastic film and supplied with a fluid, a valve introducing the fluid to the drive pressure chamber, and a piston interposed between the elastic film and the brake shoe. The fluid is supplied to the drive pressure chamber and the elastic film swells toward the brake shoe, whereby the piston brings the brake shoe into sliding contact with the disk. The valve introduces the fluid to the drive pressure chamber when the brake is applied while limiting the discharge of the fluid from the drive pressure chamber when the brake is released.Type: GrantFiled: April 19, 2012Date of Patent: May 3, 2016Assignee: KYB CorporationInventors: Tsutomu Suzuki, Yoshiyuki Ookawara, Yasushi Karino
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Patent number: 9169883Abstract: A brake caliper (10) includes a first caliper arm (12) that opposes a first frictional surface (6a) of a vehicle wheel (5) and a second caliper arm (14) that opposes a second frictional surface (6b) of the same. A movable brake pad (7) is supported by the first caliper arm (12) and applies a braking force to the first frictional surface (6a). A plurality of pistons (55) which drive the movable brake pad (7) in accordance with expansion of a diaphragm (75) provided in the brake caliper (10), and a guide member (65) that guides displacement of the plurality of pistons (55) in a right-angle direction relative to the first frictional surface (6a) are provided, and therefore the movable brake pad (7) applies an even braking force to the vehicle wheel (5) in cooperation with a fixed brake pad (700) fixed to the second caliper arm (14).Type: GrantFiled: October 10, 2008Date of Patent: October 27, 2015Assignees: KAYABA INDUSTRY CO., LTD., RAILWAY TECHNICAL RESEARCH INSTITUTEInventors: Tsutomu Suzuki, Hiroaki Wakabayashi, Yoshiyuki Ookawara, Fumiko Nankyo, Yasushi Karino
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Patent number: 8875849Abstract: In a vehicle caliper brake device, a brake pad supported by a holder applies a frictional force to a braking surface as a diaphragm actuator is driven. The holder is supported by a caliper main body to be capable of displacing in a displacement direction of the brake pad. The diaphragm actuator includes a piston that is driven by a diaphragm to push the holder. The piston is fixed to the holder using a plurality of screws, and therefore the piston applies a pressing force to the brake pad uniformly without the need for guidance by a guide.Type: GrantFiled: August 23, 2010Date of Patent: November 4, 2014Assignees: Kayaba Industry Co., Ltd., Railway Technical Research InstituteInventors: Tsutomu Suzuki, Yoshiyuki Ookawara, Yasushi Karino
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Publication number: 20140097049Abstract: A disc brake for railway vehicles includes a brake disc fixed to a wheel or an axle of a railway vehicle and a brake lining configured to be pressed against a frictional surface of the brake disc by a brake caliper. The brake lining includes a plurality of friction members arranged to be spaced from each other, each of the friction members having a surface that faces the frictional surface of the brake disc, a metallic backing secured to back surfaces of the friction members, and a base plate supporting the friction members on the back surface side via spring members. The base plate is mounted to a brake caliper; wherein the friction members are provided in pairs with each pair being formed by two adjacent ones of the friction members, and the metallic backing is a one-piece member provided for each pair of the friction members.Type: ApplicationFiled: May 31, 2012Publication date: April 10, 2014Applicants: RAILWAY TECHNICAL RESEARCH INSTITUTE, NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Takanori Kato, Takahiro Fujimoto, Kazutaka Asabe, Atsushi Sakaguchi, Yasushi Karino, Shin-ichi Saga, Takashi Maejima, Satoru Nakano, Takeshi Nakano
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Publication number: 20140054117Abstract: A caliper brake device includes a brake shoe for exerting a friction force by sliding in contact with a disk, a caliper main body fixed to a vehicle and an actuator for pressing the brake shoe against the disk. The actuator includes an elastic film fixed to the caliper main body, a drive pressure chamber defined by the elastic film and supplied with a fluid, a valve introducing the fluid to the drive pressure chamber, and a piston interposed between the elastic film and the brake shoe. The fluid is supplied to the drive pressure chamber and the elastic film swells toward the brake shoe, whereby the piston brings the brake shoe into sliding contact with the disk. The valve introduces the fluid to the drive pressure chamber when the brake is applied while limiting the discharge of the fluid from the drive pressure chamber when the brake is released.Type: ApplicationFiled: April 19, 2012Publication date: February 27, 2014Applicant: Kayaba Industry Co., LtdInventors: Tsutomu Suzuki, Yoshiyuki Ookawara, Yasushi Karino
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Publication number: 20110233009Abstract: In a vehicle caliper brake device, a brake pad 7 supported by a holder 8 applies a frictional force to a braking surface 6 as a diaphragm actuator 60 is driven. The holder 8 is supported by a caliper main body 10 to be capable of displacing in a displacement direction of the brake pad 7. The diaphragm actuator 60 includes a piston 65 that is driven by a diaphragm 76 to push the holder 8. The piston 65 is fixed to the holder 8 using a plurality of screws 66, and therefore the piston 65 applies a pressing force to the brake pad 7 uniformly without the need for guidance by a guide.Type: ApplicationFiled: August 23, 2010Publication date: September 29, 2011Inventors: Tsutomu Suzuki, Yoshiyuki Ookawara, Yasushi Karino
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Publication number: 20100044167Abstract: A brake caliper (10) includes a first caliper arm (12) that opposes a first frictional surface (6a) of a vehicle wheel (5) and a second caliper arm (14) that opposes a second frictional surface (6b) of the same. A movable brake pad (7) is supported by the first caliper arm (12) and applies a braking force to the first frictional surface (6a). A plurality of pistons (55) which drive the movable brake pad (7) in accordance with expansion of a diaphragm (75) provided in the brake caliper (10), and a guide member (65) that guides displacement of the plurality of pistons (55) in a right-angle direction relative to the first frictional surface (6a) are provided, and therefore the movable brake pad (7) applies an even braking force to the vehicle wheel (5) in cooperation with a fixed brake pad (700) fixed to the second caliper arm (14).Type: ApplicationFiled: October 10, 2008Publication date: February 25, 2010Inventors: Tsutomu Suzuki, Hiroaki Wakabayashi, Yoshiyuki ookawara, Masanobu Nankyo, Yasushi Karino