Patents by Inventor Masayuki Kudo
Masayuki Kudo 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: 20210262572Abstract: A seal structure includes a mounting groove disposed in a first member and a packing unit housed in the mounting groove. The packing unit includes an inner circumferential mounting section and an outer circumferential sliding section. Both side surfaces of the packing unit are conical surfaces which are inclined such that their diameters gradually increase in a direction from the mounting section toward the sliding section and which are inclined in mutually opposite directions. The thickness of the packing unit increases in a gradual manner in the direction from the mounting section toward the sliding section, the thickness in the mounting section is the smallest, and the thickness in the sliding section is the largest.Type: ApplicationFiled: June 6, 2019Publication date: August 26, 2021Applicant: SMC CORPORATIONInventors: Masayuki KUDO, Kenichi TAKEDA, Masahiko KAWAKAMI, Ken TAMURA, Tsukasa ODAKA
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Publication number: 20210215252Abstract: A sealing structure is configured in the following manner. When a packing having a pair of sealing portions formed at opposite edge portions of the outer peripheral surface thereof is installed in a land portion of a spool, the outside diameter of the packing is made smaller than the diameter of a slide surface of a spool hole. In a state in which the outer periphery of the land portion opposes the slide surface and a pressurized fluid is supplied from a gas supply channel to the first space of first and second spaces that are partitioned by the land portion, the edge portion of the packing positioned near the first space is elastically elongated in a radial direction due to pressure of the pressurized fluid and thereby narrows a gap formed between the first sealing portion and the slide surface of the spool hole or abuts the slide surface.Type: ApplicationFiled: July 11, 2019Publication date: July 15, 2021Applicant: SMC CORPORATIONInventors: Shinji MIYAZOE, Kazuhiro NOGUCHI, Kazuhiro UMEDA, Masayuki KUDO, Masahiko KAWAKAMI
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Patent number: 10927860Abstract: A fluidic cylinder has a cylinder tube having a cylinder chamber defined in an interior thereof has a pair of cover members attached to respective ends of the cylinder tube. A piston is disposed displaceably along the cylinder chamber, and a piston rod is connected to the piston. The piston and the cylinder tube are formed with rectangular shapes in cross section, the piston includes a wear ring which is in sliding contact with an inner wall surface of the cylinder tube, and a magnet is incorporated in the wear ring. At least one of the cover members includes bolt holes therein, the bolt holes extending in at least two or more directions including a direction in which the piston is displaced, and fastening bolts are selectively inserted into the bolt holes to fix the at least one of the cover members with respect to another member.Type: GrantFiled: December 27, 2016Date of Patent: February 23, 2021Assignee: SMC CORPORATIONInventors: Masayuki Kudo, Shinichiro Nemoto, Masahiko Kawakami, Yuu Mizutani, Eiko Miyasato, Ken Tamura
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Publication number: 20210003152Abstract: A packing has an outer circumferential surface and includes a pair of sealing parts located at opposite ends of the packing in a direction along an axis. A piston has a sliding face having a first recess groove. When in the first recess groove, the packing has an outside diameter smaller than the diameter of a slide-receiving face of a cylinder hole. The piston divides the cylinder hole into a pair of chambers. While a compressed fluid is supplied to either one of the chambers, a side edge of the packing adjacent to the chamber at a high pressure is stretched in a radial direction by elastic deformation due to the pressure of the compressed fluid, thus causing a sealing part adjacent to the chamber at the high pressure to reduce a gap formed with the slide-receiving face of the cylinder hole or come into contact with the slide-receiving face.Type: ApplicationFiled: February 20, 2019Publication date: January 7, 2021Applicant: SMC CORPORATIONInventors: Masayuki KUDO, Kenichi TAKEDA, Masahiko KAWAKAMI, Ken TAMURA, Tsukasa ODAKA
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Patent number: 10570934Abstract: The present invention relates to a fluidic cylinder. This fluidic cylinder is configured in such a manner that a piston unit is received in an axially displaceable manner within a cylinder tube formed in a rectangular cross-sectional shape. The piston unit has: a base body having the front end of a piston rod staked thereto; a wear ring having the base body received therein and having a magnet incorporated therein; and piston packing adjacent to the wear ring. The piston unit is integrally held at one end of the piston rod. The wear ring and the piston packing are formed in a rectangular cross-sectional shape corresponding to the rectangular cross-sectional shape of the cylinder tube and are provided rotatable relative to the piston rod.Type: GrantFiled: September 10, 2015Date of Patent: February 25, 2020Assignee: SMC CORPORATIONInventors: Masayuki Kudo, Yasunaga Suzuki, Shinichiro Nemoto, Jun Yamada, Eiko Miyasato, Yuu Mizutani, Ken Tamura, Masahiko Kawakami
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Publication number: 20190195248Abstract: A fluidic cylinder has a cylinder tube having a cylinder chamber defined in an interior thereof has a pair of cover members attached to respective ends of the cylinder tube. A piston is disposed displaceably along the cylinder chamber, and a piston rod is connected to the piston. The piston and the cylinder tube are formed with rectangular shapes in cross section, the piston includes a wear ring which is in sliding contact with an inner wall surface of the cylinder tube, and a magnet is incorporated in the wear ring. At least one of the cover members includes bolt holes therein, the bolt holes extending in at least two or more directions including a direction in which the piston is displaced, and fastening bolts are selectively inserted into the bolt holes to fix the at least one of the cover members with respect to another member.Type: ApplicationFiled: December 27, 2016Publication date: June 27, 2019Applicant: SMC CORPORATIONInventors: Masayuki KUDO, Shinichiro NEMOTO, Masahiro KAWAKAMI, Yuu MIZUTANI, Eiko MIYASATO, Ken TAMURA
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Patent number: 10253791Abstract: A communication path that communicates with a first main pressure chamber is provided in a main piston and a piston rod. A check valve, which opens by being pressed by a booster piston and allows the communication path to communicate with a first sub-pressure chamber when the piston rod reaches a booster start position before a forward stroke end, is disposed in an end portion of the communication path. A plurality of steel balls are disposed in a coupling-member containing chamber formed in the booster piston. An engagement surface and an engagement groove, which engage with the steel balls when the booster piston moves forward due to an action of a pressure fluid supplied to the first sub-pressure chamber 11a through the communication path, are formed in the coupling-member containing chamber and an outer peripheral surface of the piston rod.Type: GrantFiled: July 17, 2017Date of Patent: April 9, 2019Assignee: SMC CORPORATIONInventors: Masayuki Kudo, Yuichi Tanabe, Eiko Miyasato
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Patent number: 9885201Abstract: A lock device body includes a brake member fastening a rod to lock the rod, a piston that press-opens a pair of pressure-bearing sections of the brake member by using an expansion member to unlock the rod, and an operation element for manually operating the piston, the operation element includes a shaft threaded in a screw hole, a pressure plate formed on one end of the shaft and located in the pressure chamber, and a sealing member disposed on the pressure plate. When the shaft is threaded into a lock release position, an operation end becomes an unextending state while the pressure plate displaces the piston to the lock release position, and, when the shaft is threaded back to a lock position, the operation end extends from the screw hole to the outside while the sealing member seals the screw hole to isolate the screw hole from the pressure chamber.Type: GrantFiled: October 9, 2014Date of Patent: February 6, 2018Assignee: SMC CORPORATIONInventors: Mitsuo Miyamoto, Masayuki Kudo
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Publication number: 20180031011Abstract: A communication path that communicates with a first main pressure chamber is provided in a main piston and a piston rod. A check valve, which opens by being pressed by a booster piston and allows the communication path to communicate with a first sub-pressure chamber when the piston rod reaches a booster start position before a forward stroke end, is disposed in an end portion of the communication path. A plurality of steel balls are disposed in a coupling-member containing chamber formed in the booster piston. An engagement surface and an engagement groove, which engage with the steel balls when the booster piston moves forward due to an action of a pressure fluid supplied to the first sub-pressure chamber 11a through the communication path, are formed in the coupling-member containing chamber and an outer peripheral surface of the piston rod.Type: ApplicationFiled: July 17, 2017Publication date: February 1, 2018Applicant: SMC CORPORATIONInventors: Masayuki KUDO, Yuichi TANABE, Eiko MIYASATO
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Publication number: 20170298931Abstract: The present invention relates to a fluidic cylinder. This fluidic cylinder is configured in such a manner that a piston unit is received in an axially displaceable manner within a cylinder tube formed in a rectangular cross-sectional shape. The piston unit has: a base body having the front end of a piston rod staked thereto; a wear ring having the base body received therein and having a magnet incorporated therein; and piston packing adjacent to the wear ring. The piston unit is integrally held at one end of the piston rod. The wear ring and the piston packing are formed in a rectangular cross-sectional shape corresponding to the rectangular cross-sectional shape of the cylinder tube and are provided rotatable relative to the piston rod.Type: ApplicationFiled: September 10, 2015Publication date: October 19, 2017Applicant: SMC CORPORATIONInventors: Masayuki KUDO, Yasunaga SUZAKI, Shinichiro NEMOTO, Jun YAMADA, Eiko MIYASATO, Yuu MIZUTANI, Ken TAMURA, Masahiko KAWAKAMI
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Patent number: 9747534Abstract: Provided is a printing device including a print data receiving unit, a page calculation unit that calculates a number of pages before stopping with using a page length of received print data and a distance from a printing mechanism unit to a visual recognition unit, a print instruction unit that changes the number of pages before stopping or a number of printed pages and performs print processing when the received print data corresponds to a control page for controlling printing, and a print stop unit that stops printing when the number of printed pages coincides with the number of pages before stopping.Type: GrantFiled: October 1, 2015Date of Patent: August 29, 2017Assignee: FUJI XEROX CO., LTD.Inventors: Atsuo Matsunaga, Masayuki Kudo, Takayuki Matsui, Masashi Murakami, Keiji Ishiguro, Kazuhide Kobayashi
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Patent number: D780228Type: GrantFiled: March 4, 2016Date of Patent: February 28, 2017Assignee: SMC CORPORATIONInventors: Masayuki Kudo, Eiko Miyasato, Yuu Mizutani
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Patent number: D780229Type: GrantFiled: March 4, 2016Date of Patent: February 28, 2017Assignee: SMC CORPORATIONInventors: Masayuki Kudo, Eiko Miyasato, Yuu Mizutani
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Patent number: D805559Type: GrantFiled: September 16, 2016Date of Patent: December 19, 2017Assignee: SMC CORPORATIONInventors: Masayuki Kudo, Shinichiro Nemoto, Yuu Mizutani, Eiko Miyasato, Masahiko Kawakami, Ken Tamura
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Patent number: D805560Type: GrantFiled: September 16, 2016Date of Patent: December 19, 2017Assignee: SMC CORPORATIONInventors: Masayuki Kudo, Shinichiro Nemoto, Yuu Mizutani, Eiko Miyasato, Masahiko Kawakami, Ken Tamura
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Patent number: D819700Type: GrantFiled: March 13, 2017Date of Patent: June 5, 2018Assignee: SMC CORPORATIONInventors: Masayuki Kudo, Masahiko Kawakami, Yuu Mizutani, Shinichiro Nemoto, Eiko Miyasato
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Patent number: D820321Type: GrantFiled: March 13, 2017Date of Patent: June 12, 2018Assignee: SMC CORPORATIONInventors: Masayuki Kudo, Masahiko Kawakami, Yuu Mizutani, Shinichiro Nemoto, Eiko Miyasato
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Patent number: D888769Type: GrantFiled: January 25, 2019Date of Patent: June 30, 2020Assignee: SMC CORPORATIONInventors: Yuu Mizutani, Masahiko Kawakami, Sho Aso, Shinichiro Nemoto, Masayuki Kudo, Kengo Monden
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Patent number: D888770Type: GrantFiled: January 25, 2019Date of Patent: June 30, 2020Assignee: SMC CORPORATIONInventors: Yuu Mizutani, Masahiko Kawakami, Sho Aso, Shinichiro Nemoto, Masayuki Kudo, Kengo Monden
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Patent number: D888771Type: GrantFiled: January 25, 2019Date of Patent: June 30, 2020Assignee: SMC CORPORATIONInventors: Yuu Mizutani, Masahiko Kawakami, Sho Aso, Shinichiro Nemoto, Masayuki Kudo, Kengo Monden