Patents by Inventor Hirokatsu Maeda
Hirokatsu Maeda 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: 20240034429Abstract: A front fork (1) according to the present invention includes: a fork main body (2) including a vehicle body side tube (3) and an axle side tube (4); a cap body (5) attached to a vehicle body side tube (3); a cylinder (6) provided in the axle side tube (4); a cylindrical rod (7) axially movably inserted into the cylinder (6); an electric device (8) housed in the cylinder (6); and a wire (9) that is inserted into the rod (7), passes through the cap (C), and is drawn out from the fork main body (2) and is connected to the electric device (8), in which the connection tube (13b) and the rod (7) in the cap (C) are connected by a connection nut (27) that is rotatably mounted on an outer circumference of one of the connection tube (13b) and the rod (7) and is restricted in movement in the axial direction toward the other, and screwed to the other.Type: ApplicationFiled: December 10, 2021Publication date: February 1, 2024Applicants: KYB Motorcycle Suspension Co.,Ltd., KYB CorporationInventors: Hidetoshi SUGAWARA, Naoki ITO, Takumi HAYASHIGUCHI, Hirokatsu MAEDA
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Publication number: 20230406443Abstract: A front fork (1) of the present invention includes: a fork main body (2) having a vehicle body side tube (3) and an axle side tube (4); a cap (5) placed in the vehicle body side tube (3); a cylinder (6) provided inside the axle side tube (4); a rod (7) inserted into the cylinder (6) so as to be movable in an axial direction; an electric device (6) mounted inside the cylinder (6); an electric wire (9) connected to the electric device (8); a suspension spring (10) biasing the fork main body (2) in an extending direction, and an adjuster (11) capable of adjusting a support position of a spring seat (12). The electric wire (9) is drawn from the cap (5) at a position misaligned from an axial center line of the fork main body (2) to an outside of the fork main body (2). An operational portion (17) of the adjuster (11) is provided in the cap (5) at a position misaligned from the axial center line (A).Type: ApplicationFiled: December 10, 2021Publication date: December 21, 2023Applicants: KYB Motorcycle Suspension Co.,Ltd., KYB CorporationInventors: Hidetoshi SUGAWARA, Naoki ITO, Takumi HAYASHIGUCHI, Hirokatsu MAEDA
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Patent number: 9022353Abstract: A ball valve which can suppress the increasing of processing labor time and reliably prevent simultaneous rotation of a ball seat and a ball when the ball is rotated by handle manipulation is provided. The valve body 2 is formed of a hard material such as stainless steel, the ball seat is formed of a relatively soft material such as a fluorine resin, and a protrusion 18 is formed on a ball seat support surface 13 of the valve body 2 made of a hard material so as to bite into the ball seat 4.Type: GrantFiled: December 9, 2010Date of Patent: May 5, 2015Assignee: Fujikin IncorporatedInventors: Masashi Matsuoka, Yosinori Shimomura, Kunihiko Daido, Hirokatsu Maeda
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Publication number: 20130037738Abstract: A ball valve which can suppress the increasing of processing labor time and reliably prevent simultaneous rotation of a ball seat and a ball when the ball is rotated by handle manipulation is provided. The valve body 2 is formed of a hard material such as stainless steel, the ball seat is formed of a relatively soft material such as a fluorine resin, and a protrusion 18 is formed on a ball seat support surface 13 of the valve body 2 made of a hard material so as to bite into the ball seat 4.Type: ApplicationFiled: December 9, 2010Publication date: February 14, 2013Applicant: Fujikin IncorporatedInventors: Masashi Matsuoka, Yosinori Shimomura, Kunihiko Daido, Hirokatsu Maeda
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Publication number: 20060145109Abstract: A stopper support member 12 has a rectangular plate 15 provided with a circular through hole 16 for a cylinder 7 of a fluid controller body 2 to be fittingly inserted therethrough, a downward projection 17 provided at lengthwise one end of the rectangular plate 15 and held in contact with one side wall of a rectangular parallelepipedal portion 4 of the controller body 2, and an extension 15a extending outward from the plate 15 beyond the parallelepipedal portion 4. A stopper 13 in the form of a vertical plate is upwardly or downwardly movably inserted through a hole 18 formed in the extension 15a of the support member 12. The stopper 13 has a contact portion 19 movable into contact with the knob 3a of the handle 3 from outside widthwise of the knob when the stopper is in a locking position and a lock attaching portion 20 positioned above the support member 12 when the stopper is in the locking position.Type: ApplicationFiled: August 22, 2003Publication date: July 6, 2006Applicant: Fujikin IncorporatedInventors: Hirokatsu Maeda, Kunihiko Daido, Michio Yamaji
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Publication number: 20060102867Abstract: A fluid control device 1 comprises a metal body 2 having a fluid inlet channel 2a, a fluid outlet channel 2b and a communication channel 2c for holding the two channels in communication, and a metal slide member 3 vertically movable in a vertical passage 11 including the communication channel 2c for closing or opening the communication channel 2c with an end portion thereof. At least the end portion 3a of the slide member 3 is made of an alloy comprising, in % by weight, 0.001 to 0.01% of C, up to 5% of Si, up to 2% of Mn, up to 0.03% of P, up to 100 ppm of S, up to 50 ppm of O, 18 to 25% of Cr, 15 to 25% of Ni, 4.5 to 7.0% of Mo, 0.5 to 3.0% of Cu, 0.1 to 0.3% of N, and the balance substantially Fe and other inevitable impurities.Type: ApplicationFiled: July 9, 2003Publication date: May 18, 2006Inventors: Ryo Matsuhashi, Kazuhiro Suetsugu, Hideyuki Miyagawa, Toshio Kita, Kyota Sogabe, Kazuhiro Yoshikawa, Akihiro Morimoto, Jyunji Sato, Kunihiko Daido, Hirokatsu Maeda
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Patent number: 5186434Abstract: A fluid flow controller comprising a flow passage which is opened and closed by the flexing of a diaphragm secured at its periphery characterized in that the diaphragm is a laminate of a plurality of metal diaphragms and in that friction reducing material is provided between the diaphragms.Type: GrantFiled: April 8, 1992Date of Patent: February 16, 1993Assignee: Masako KiyoharaInventors: Ryutaro Nishimura, Michio Yamaji, Hirokatsu Maeda, Nobukazu Ikeda, Kenji Yamamoto
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Patent number: D885859Type: GrantFiled: July 23, 2018Date of Patent: June 2, 2020Assignee: FUJIKIN INCORPORATEDInventors: Keisuke Ishibashi, Yoshinori Shimomura, Hirokatsu Maeda, Tadayuki Yakushijin