Patents by Inventor Shidehiko Miyashiro
Shidehiko Miyashiro 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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Publication number: 20080184954Abstract: A motorcycle has a head pipe and an engine disposed with its cylinder axis inclined rearward. An intake pipe located between a down tube and the engine is connected to a front part of the engine and includes an engine connecting part connected to a front part of the engine. The engine connecting part is inclined upward to the front to define an acute angle with respect to the cylinder axis of the engine. A funnel is connected to a throttle body and extends upward to the front in a more vertically upward direction than an axis of the throttle body.Type: ApplicationFiled: February 1, 2008Publication date: August 7, 2008Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Masato YOKOI, Shidehiko MIYASHIRO
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Publication number: 20080184961Abstract: A vehicle has a body frame that does not interfere with an injector. A down tube extends downward to the rear. An engine is disposed with its cylinder axis inclined rearward. An intake pipe located between the down tube and the engine extends obliquely upward from a forward side of the engine. A fuel injector is attached to the intake pipe. The intake pipe includes a straight throttle body connected to the engine. The fuel injector is mounted on a rearward side of the throttle body relative to a forward side where the down tube is disposed.Type: ApplicationFiled: February 1, 2008Publication date: August 7, 2008Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Shidehiko MIYASHIRO
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Patent number: 7401597Abstract: A fuel supply device for a motorcycle facilitates a narrower vehicle width to improve maneuverability. A fuel tank is disposed above a body frame, and a first fuel pump is fixed to a part of the fuel tank facing the body frame and positioned inside of the fuel tank via a mount seat. The first fuel pump is disposed such that at least a portion of the mount seat overlaps the vehicle body frame as viewed from above the motorcycle.Type: GrantFiled: October 18, 2006Date of Patent: July 22, 2008Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Munetaka Koike, Shidehiko Miyashiro
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Patent number: 7392977Abstract: A spring is disclosed having a selected number of total turns so that the directions of bending at ends of spring are different when the spring is contracted. In certain embodiments, the directions of bending for the ends are centered within a ±45° span and are located 225° from terminal ends of the spring.Type: GrantFiled: December 16, 2005Date of Patent: July 1, 2008Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Shidehiko Miyashiro, Satoshi Oohashi
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Publication number: 20080110688Abstract: A body frame for a vehicle such as a motorcycle with a minimized number of parts. A main frame is connected to a head pipe and supports a rear arm to which a rear wheel is attached. A tank rail is connected to the head pipe at one end and to the main frame at the other end.Type: ApplicationFiled: November 14, 2007Publication date: May 15, 2008Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Shidehiko MIYASHIRO, Toshio OKAMOTO
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Publication number: 20080110687Abstract: A vehicle having a sufficient length of exhaust pipe and a member disposed above a rear suspension that is not too high. An exhaust pipe is connected to a rearward side of an engine. A rear suspension absorbs shocks generated when a rear wheel moves up and down. A coil-form part of the exhaust pipe is located between the rear suspension and a tire house of the rear wheel, within which the rear wheel moves up and down.Type: ApplicationFiled: November 14, 2007Publication date: May 15, 2008Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Shidehiko MIYASHIRO, Kiyohiko OGURI, Toshio OKAMOTO
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Publication number: 20080011534Abstract: A straddle-type vehicle that has a fuel pump mounted on the bottom of a fuel tank disposed above an engine provides simplified maintenance and cleaning of the upper portion of the engine and its peripheral parts. A fuel tank support section that connects a fuel tank such that the fuel tank can turn on a connection bolt. The fuel tank support section connects a body frame to a front end section of the fuel tank. A fuel injection device is disposed under a rear end section of the fuel tank.Type: ApplicationFiled: June 25, 2007Publication date: January 17, 2008Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Shidehiko MIYASHIRO
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Publication number: 20070089713Abstract: A fuel supply device for a motorcycle facilitates a narrower vehicle width to improve maneuverability. A fuel tank is disposed above a body frame, and a first fuel pump is fixed to a part of the fuel tank facing the body frame and positioned inside of the fuel tank via a mount seat. The first fuel pump is disposed such that at least a portion of the mount seat overlaps the vehicle body frame as viewed from above the motorcycle.Type: ApplicationFiled: October 18, 2006Publication date: April 26, 2007Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Munetaka Koike, Shidehiko Miyashiro
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Patent number: 7165301Abstract: An off-road motorcycle incorporates a swingarm assembly for pivotally supporting a rear wheel relative to a frame of the motorcycle. Preferably, the swingarm includes right and left arms extending rearwardly from a forward connecting portion. Right and left rear wheel mount members are secured to the right and left arms, respectively, to rotatably support the rear wheel of the motorcycle. Preferably, the arms of the swingarm assembly are formed at least partially by a hydroforming process and the center of each of the arms has a width that is greater than the width of either a forward or rearward end of the arm. In addition, the forward end of each of the right end left arms preferably is bent inward such that the forward portion of the swingarm assembly is narrower than the rear portion of the swingarm assembly. The hydroforming process permits the inner wall of the arms to be vertical and substantially planar along the region where the arms are bent about a generally vertically extending axis.Type: GrantFiled: May 13, 2005Date of Patent: January 23, 2007Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Shidehiko Miyashiro
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Publication number: 20060180966Abstract: A spring is disclosed having a selected number of total turns so that the directions of bending at ends of spring are different when the spring is contracted. In certain embodiments, the directions of bending for the ends are centered within a ±45° span and are located 225° from terminal ends of the spring.Type: ApplicationFiled: December 16, 2005Publication date: August 17, 2006Inventors: Shidehiko Miyashiro, Satoshi Oohashi
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Patent number: 7073617Abstract: In a body frame for a motorcycle mounted with an engine unit 11 and provided with a main frame 2a by which a front fork 4 and rear arms 7 are supported, the main frame 2a includes: a head pipe unit 20 which extends obliquely downward to a rear of a vehicle from a head pipe 3 and so as to expand in a vertical direction; a down frame 21 which is connected to a front part at lower end of the head pipe unit 20; and left and right rear arm brackets 10 which are stretched and connected to a rear end of the down frame 21 and a rear part at lower end of the head pipe unit 20, and the head pipe unit 20 is an aluminum die-cast molded product, and the down frame 21 and the left and right rear arm brackets 10 are aluminum forged molded products.Type: GrantFiled: December 26, 2002Date of Patent: July 11, 2006Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Shidehiko Miyashiro, Takehisa Katsura, Takayoshi Fukuda, Sin Yokomizo, Takushiro Shiraishi, Hiroshi Yamaoka, Norikazu Unno
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Publication number: 20050236206Abstract: An off-road motorcycle incorporates a swingarm assembly for pivotally supporting a rear wheel relative to a frame of the motorcycle. Preferably, the swingarm includes right and left arms extending rearwardly from a forward connecting portion. Right and left rear wheel mount members are secured to the right and left arms, respectively, to rotatably support the rear wheel of the motorcycle. Preferably, the arms of the swingarm assembly are formed at least partially by a hydroforming process and the center of each of the arms has a width that is greater than the width of either a forward or rearward end of the arm. In addition, the forward end of each of the right end left arms preferably is bent inward such that the forward portion of the swingarm assembly is narrower than the rear portion of the swingarm assembly. The hydroforming process permits the inner wall of the arms to be vertical and substantially planar along the region where the arms are bent about a generally vertically extending axis.Type: ApplicationFiled: May 13, 2005Publication date: October 27, 2005Inventor: Shidehiko Miyashiro
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Patent number: 6860353Abstract: An off-road motorcycle incorporating a swingarm assembly for pivotally supporting a rear wheel relative to a main frame portion of the motorcycle. Preferably, the swingarm includes right and left arms extending rearwardly from a forward connecting portion. Right and left rear wheel mount members are secured to the right and left arms, respectively, to rotatably support the rear wheel of the motorcycle. Preferably, the arms from the swingarm assembly are formed at least partially by a hydroforming process wherein the center of the arms has a width that is greater than the width of either a forward or rearward end of the arm. In addition, the forward ends of each of the right end left arms are bent inward such that the forward portion of the swingarm assembly is narrower than the rear portion of the swingarm assembly. Desirably, the hydroforming process permits the inner wall of the arms to be vertical and substantially planar, even along the region where the arms are bent.Type: GrantFiled: June 20, 2002Date of Patent: March 1, 2005Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Shidehiko Miyashiro
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Patent number: 6789638Abstract: An off-road motorcycle incorporates a swingarm assembly for pivotally supporting a rear wheel relative to a frame of the motorcycle. Preferably, the swingarm includes right and left arms extending rearwardly from a forward connecting portion. Right and left rear wheel mount members are secured to the right and left arms, respectively, to rotatably support the rear wheel of the motorcycle. Preferably, the arms of the swingarm assembly are formed at least partially by a hydroforming process and the center of each of the arms has a width that is greater than the width of either a forward or rearward end of the arm. In addition, the forward end of each of the right end left arms preferably is bent inward such that the forward portion of the swingarm assembly is narrower than the rear portion of the swingarm assembly. The hydroforming process permits the inner wall of the arms to be vertical and substantially planar along the region where the arms are bent about a generally vertically extending axis.Type: GrantFiled: June 20, 2002Date of Patent: September 14, 2004Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Shidehiko Miyashiro
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Publication number: 20040154852Abstract: In a body frame for a motorcycle mounted with an engine unit 11 and provided with a main frame 2a by which a front fork 4 and rear arms 7 are supported, the main frame 2a includes: a head pipe unit 20 which extends obliquely downward to a rear of a vehicle from a head pipe 3 and so as to expand in a vertical direction; a down frame 21 which is connected to a front part at lower end of the head pipe unit 20; and left and right rear arm brackets 10 which are stretched and connected to a rear end of the down frame 21 and a rear part at lower end of the head pipe unit 20, and the head pipe unit 20 is an aluminum die-cast molded product, and the down frame 21 and the left and right rear arm brackets 10 are aluminum forged molded products.Type: ApplicationFiled: April 5, 2004Publication date: August 12, 2004Inventors: Shidehiko Miyashiro, Takehisa Katsura, Takayoshi Fukuda, Sin Yokomizo, Takushiro Shiraishi, Hiroshi Yamaoka, Norikazu Unno
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Publication number: 20030196843Abstract: An off-road motorcycle incorporates a swingarm assembly for pivotally supporting a rear wheel relative to a frame of the motorcycle. Preferably, the swingarm includes right and left arms extending rearwardly from a forward connecting portion. Right and left rear wheel mount members are secured to the right and left arms, respectively, to rotatably support the rear wheel of the motorcycle. Preferably, the arms of the swingarm assembly are formed at least partially by a hydroforming process and the center of each of the arms has a width that is greater than the width of either a forward or rearward end of the arm. In addition, the forward end of each of the right end left arms preferably is bent inward such that the forward portion of the swingarm assembly is narrower than the rear portion of the swingarm assembly. The hydroforming process permits the inner wall of the arms to be vertical and substantially planar along the region where the arms are bent about a generally vertically extending axis.Type: ApplicationFiled: June 20, 2002Publication date: October 23, 2003Inventor: Shidehiko Miyashiro
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Publication number: 20030015365Abstract: An off-road motorcycle incorporates a swingarm assembly for pivotally supporting a rear wheel relative to a frame of the motorcycle. Preferably, the swingarm includes right and left arms extending rearwardly from a forward connecting portion. Right and left rear wheel mount members are secured to the right and left arms, respectively, to rotatably support the rear wheel of the motorcycle. Preferably, the arms of the swingarm assembly are formed at least partially by a hydroforming process and the center of each of the arms has a width that is greater than the width of either a forward or rearward end of the arm. In addition, the forward end of each of the right end left arms preferably is bent inward such that the forward portion of the swingarm assembly is narrower than the rear portion of the swingarm assembly. The hydroforming process permits the inner wall of the arms to be vertical and substantially planar along the region where the arms are bent about a generally vertically extending axis.Type: ApplicationFiled: June 20, 2002Publication date: January 23, 2003Inventor: Shidehiko Miyashiro
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Publication number: 20030010557Abstract: An off-road motorcycle incorporating a swingarm assembly for pivotally supporting a rear wheel relative to a main frame portion of the motorcycle. Preferably, the swingarm includes right and left arms extending rearwardly from a forward connecting portion. Right and left rear wheel mount members are secured to the right and left arms, respectively, to rotatably support the rear wheel of the motorcycle. Preferably, the arms from the swingarm assembly are formed at least partially by a hydroforming process wherein the center of the arms has a width that is greater than the width of either a forward or rearward end of the arm. In addition, the forward ends of each of the right end left arms are bent inward such that the forward portion of the swingarm assembly is narrower than the rear portion of the swingarm assembly. Desirably, the hydroforming process permits the inner wall of the arms to be vertical and substantially planar, even along the region where the arms are bent.Type: ApplicationFiled: June 20, 2002Publication date: January 16, 2003Inventor: Shidehiko Miyashiro