Patents by Inventor Yoshihiro Fukano

Yoshihiro Fukano 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).

  • Patent number: 9784389
    Abstract: A pipe joint contains a body having a fluid passage in the interior thereof, a tightening cap screw-engaged with an end of the body for connecting a tube thereto, and an indicator ring interposed between a stopper of the body and an end of the tightening cap. The indicator ring is equipped with a flat section and an inclined section, which is inclined with respect to the flat section, and is formed with a smaller diameter than an outer circumferential surface of the tightening cap. When the tightening cap is screw-rotated to thereby connect the tube, as a result of the inclined section being pressed and deformed by movement of the tightening cap, the inclined section projects radially outward with respect to the outer circumferential surface of the tightening cap, whereby a tightened condition is visually confirmed by the outer edge of the indicator ring.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: October 10, 2017
    Assignee: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Patent number: 9550262
    Abstract: In an electric clamp apparatus, a drive unit including a motor is disposed on an end of a body on which a clamp arm is rotatably supported. The drive unit includes a hollow housing connected to the body, and a motor unit, which is configured to be accommodated in the interior of the housing. After the motor unit has been inserted into the interior of the housing from one end side thereof, two lock plates, which are disposed on a frame of the motor unit, are rotated, whereby holes of the lock plates are made to engage with projections of the housing. As a result, the motor unit is fixed in a state of being accommodated in the housing.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: January 24, 2017
    Assignee: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro Fukano, Noriyuki Miyazaki, Takeshi Seo
  • Patent number: 9410639
    Abstract: A spool valve is equipped with a valve body, a spool arranged in a valve chamber such that the spool can be displaced between a first position, which allows communication between an inlet port and an outlet port, and a second position, which blocks communication between the inlet port and the outlet port, a pilot valve mechanism disposed in the valve body and which causes displacement of the spool along an axial direction under the pressure of a pilot fluid that acts on one end surface of the spool, and a spring that biases the spool toward one side in the axial direction.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: August 9, 2016
    Assignee: SMC CORPORATION
    Inventors: Yoshihiro Fukano, Takayuki Murai
  • Patent number: 9400062
    Abstract: A thermoelement and a thermovalve incorporating the same, in which reliable operation is achieved with a simple internal structure, and there is no risk of contaminant jamming. The thermoelement includes a casing, a mounting portion, a shaft, a heat-sensitive medium, and a seal member for drawing the shaft into the casing when the heat-sensitive medium expands. The thermovalve includes a body including a valve body linked to a shaft of a thermoelement, and a seating part on/from which the valve body can be seated/separated.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: July 26, 2016
    Assignee: SMC CORPORATION
    Inventors: Yoshihiro Fukano, Takayuki Murai, Hikaru Tsuyuki
  • Patent number: 9360354
    Abstract: An installation hole, in which a detector is accommodated, is formed in a substantially central portion of a body of a vortex flowmeter. A first ring is formed on an annular wall that forms a boundary between a first aperture portion and a second aperture portion of the installation hole. In the detector, a detecting element made up from a piezoelectric element is accommodated in a holder. A pair of second rings is formed on the outer circumferential surface of the holder. By inserting the detector in the installation hole, the second rings are placed in sliding contact with the inner circumferential surface of the installation hole, and the first ring comes into abutment with a boundary region of the holder. Consequently, a seal is formed between the detector and the body by the first and second rings.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: June 7, 2016
    Assignee: SMC CORPORATION
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Patent number: 9328829
    Abstract: A two-way valve includes a valve body made of a resilient member and connected to a lower end of a shaft. The valve body is made up from a main body portion having an axial member connected to the shaft, and a thin film skirt portion formed on an outer circumferential side of the main body portion. An outer edge of the skirt portion is sandwiched and gripped between a small diameter part of a housing and a connector of a body. Further, lips that project in a downward direction are formed in a central portion of the main body portion. The lips are seated on a top portion of a partition wall in the body, so that the two-way valve is placed in a valve-closed state.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: May 3, 2016
    Assignee: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro Fukano, Tadashi Uchino, Yasunori Suzuki
  • Publication number: 20150316165
    Abstract: A thermoelement and a thermovalve incorporating the same, in which reliable operation is achieved with a simple internal structure, and there is no risk of contaminant jamming. The thermoelement includes a casing, a mounting portion, a shaft, a heat-sensitive medium, and a seal member for drawing the shaft into the casing when the heat-sensitive medium expands. The thermovalve includes a body including a valve body linked to a shaft of a thermoelement, and a seating part on/from which the valve body can be seated/separated.
    Type: Application
    Filed: October 31, 2013
    Publication date: November 5, 2015
    Applicant: SMC CORPORATION
    Inventors: Yoshihiro FUKANO, Takayuki MURAI, Hikaru TSUYUKI
  • Patent number: 9163744
    Abstract: A solenoid valve. In a solenoid section forming part of the solenoid valve, a sleeve is provided on the inner circumferential side of a bobbin around which a coil is wound. This sleeve is formed from magnetic material and includes a cylindrical section and a flange section formed at a lower end of the cylindrical section. At an upper end of the cylindrical section, a tapered section is formed in which an outer circumferential face is recessed in the radially inward direction. The tapered section is arranged facing and in close contact with the outer circumferential face of a fixed core such that the magnetic flux density in the tapered section increases when the solenoid section is excited.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: October 20, 2015
    Assignee: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro Fukano, Masami Yoshida, Takeshi Karibe
  • Patent number: 9164008
    Abstract: The present invention relates to a pressure detector. In a body that constitutes part of the pressure detector, a through hole is formed, which is directed upwardly from a substantially central portion of a flow passage through which a pressure fluid flows. The through hole communicates with a sensor chamber in which a pressure sensor is disposed, and a rod-shaped member is disposed displaceably in the through hole. In addition, an end of the rod-shaped member, which is exposed to the flow passage, is pressed by the pressure fluid and displaced upwardly thereby, and pressure is detected as a result of the pressure sensor being pressed by a head of the rod-shaped member.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: October 20, 2015
    Assignee: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Patent number: 9109933
    Abstract: An electromagnetic flowmeter includes a yoke of a solenoid unit, which is accommodated in the interior of a body. The yoke is U-shaped in cross section, with a pipe unit including a measurement conduit being arranged in the interior of the yoke. One end portion and another end portion of the measurement conduit are formed with true circular shapes in cross section, whereas an intermediate portion thereof between the one end portion and the other end portion is formed with an oval shape in cross section. On the measurement conduit, cross-sectional straight line portions thereof, which are formed in the intermediate portion, are arranged in a vertical direction. Coils of the solenoid unit and excitation plates are arranged in facing relation to the cross-sectional straight line portions.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: August 18, 2015
    Assignee: SMC CORPORATION
    Inventors: Yoshihiro Fukano, Yuji Tsuda
  • Patent number: 9091352
    Abstract: A flow path opening/closing valve is equipped with a main body having a valve chamber housing therein a rotatable valve body, and a sleeve that abuts without gaps against an inner circumferential surface of the valve chamber, such that the inner circumferential surface of the valve chamber and an inner circumferential surface of the sleeve slide without gaps against an outer circumferential surface of the valve body, for thereby shielding the valve chamber by the valve body and the sleeve. First and second seat members, and first and second o-rings that urge the first and second seat members toward the side of the valve body are arranged inside first and second annular grooves, which are provided on the inner circumferential surface and the inner circumferential surface.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: July 28, 2015
    Assignee: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro Fukano, Tadashi Uchino, Taiyou Hatta
  • Patent number: 9062778
    Abstract: A valve mechanism, which constitutes a solenoid valve as one example of a valve, includes a valve plug that is displaced in an axial direction under an excitation action of a solenoid unit, and is equipped with a flexible diaphragm disposed between a valve body and an annular groove formed on an outer circumferential surface of the valve plug. The diaphragm is flexible accompanying displacement of the valve plug and includes first through third projections on an inner edge portion thereof. In addition, the first through third projections are capable of coming into abutment, respectively, against an inner circumferential surface, a first wall surface, and a second wall surface of the annular groove. Further, the inner edge portion is inserted in the interior of the annular groove while being movable slightly in the direction of displacement of the valve plug.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: June 23, 2015
    Assignee: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro Fukano, Yasunori Shiraga
  • Publication number: 20150165577
    Abstract: In an electric clamp apparatus, a drive unit including a motor is disposed on an end of a body on which a clamp arm is rotatably supported. The drive unit includes a hollow housing connected to the body, and a motor unit, which is configured to be accommodated in the interior of the housing. After the motor unit has been inserted into the interior of the housing from one end side thereof, two lock plates, which are disposed on a frame of the motor unit, are rotated, whereby holes of the lock plates are made to engage with projections of the housing. As a result, the motor unit is fixed in a state of being accommodated in the housing.
    Type: Application
    Filed: June 17, 2013
    Publication date: June 18, 2015
    Applicant: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro Fukano, Noriyuki Miyazaki, Takeshi Seo
  • Patent number: 9046182
    Abstract: A check valve includes connected first and second bodies respectively disposed on upstream and downstream sides. A valve plug is disposed displaceably in a communication chamber formed in the interior of the first body. A skirt urges a main body portion of the valve plug in a direction for seating the main body portion on a valve seat surface, and is provided on the valve plug such that the main body portion is seated on the valve seat surface by an elastic force of the skirt. By supplying a pressure fluid to the first body, the valve plug is displaced in opposition to the elastic force of the skirt, whereby the interior of the first body and the interior of the second body are placed in communication and the pressure fluid is allowed to flow therethrough.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: June 2, 2015
    Assignee: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Publication number: 20150068323
    Abstract: An installation hole, in which a detector is accommodated, is formed in a substantially central portion of a body of a vortex flowmeter. A first ring is formed on an annular wall that forms a boundary between a first aperture portion and a second aperture portion of the installation hole. In the detector, a detecting element made up from a piezoelectric element is accommodated in a holder. A pair of second rings is formed on the outer circumferential surface of the holder. By inserting the detector in the installation hole, the second rings are placed in sliding contact with the inner circumferential surface of the installation hole, and the first ring comes into abutment with a boundary region of the holder. Consequently, a seal is formed between the detector and the body by the first and second rings.
    Type: Application
    Filed: August 18, 2014
    Publication date: March 12, 2015
    Applicant: SMC CORPORATION
    Inventors: Yoshihiro FUKANO, Tadashi UCHINO
  • Patent number: 8973452
    Abstract: In a body of an electric actuator, dust collecting pipes are disposed as a pair along an axial direction of a hole portion of the body. The dust collecting pipes are connected respectively to negative pressure supply ports provided in an end block, and include plural first through fifth suction holes separated mutually along an axial direction of the dust collecting pipes. Distances between the first through fifth suction holes are formed so as to become smaller stepwise from one end side of the dust collection pipes, on the side of the negative pressure supply ports, to the other end side thereof.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: March 10, 2015
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Shoichi Makado, Hiroyuki Shiomi
  • Patent number: 8973453
    Abstract: A feed screw mechanism includes a feed screw shaft connected to a drive source and formed with first screw threads on an outer circumferential surface thereof, and a displacement nut, which is screw-engaged with respect to the feed screw shaft through a plurality of balls. The displacement nut is supported with respect to a slider that makes up an electric actuator by a pair of pins. The pins are inserted and fixed in first pin holes formed in the slider, and distal end portions of the pins are inserted respectively into second pin holes formed in the displacement nut.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: March 10, 2015
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Toru Sugiyama, Masaki Imamura
  • Patent number: 8960749
    Abstract: A vacuum suction apparatus is equipped with a body having a supply port, and a pad provided on a lower portion of the body to which a workpiece can be attracted under suction. The pad is constituted from a base plate accommodated in a space of the body, a flexible intermediate plate provided on a lower portion of the base plate, and a suction sheet body disposed on a lower portion of the intermediate plate and having a sheet that attracts the workpiece under suction. In addition, the base plate, the intermediate plate and the suction sheet body are stacked along an axial direction of the body. The rigidity of the base plate is highest, whereas the rigidities of the intermediate plate and the suction sheet body are lower in this order, and the flexibilities thereof are greater in this order from the base plate.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: February 24, 2015
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Shuzo Sakurai, Masahiko Someya
  • Publication number: 20140299799
    Abstract: A spool valve is equipped with a valve body, a spool arranged in a valve chamber such that the spool can be displaced between a first position, which allows communication between an inlet port and an outlet port, and a second position, which blocks communication between the inlet port and the outlet port, a pilot valve mechanism disposed in the valve body and which causes displacement of the spool along an axial direction under the pressure of a pilot fluid that acts on one end surface of the spool, and a spring that biases the spool toward one side in the axial direction.
    Type: Application
    Filed: March 14, 2014
    Publication date: October 9, 2014
    Applicant: SMC CORPORATION
    Inventors: Yoshihiro Fukano, Takayuki Murai
  • Patent number: D715899
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: October 21, 2014
    Assignee: SMC Corporation
    Inventors: Yoshihiro Fukano, Makoto Nomura, Shinya Yamasaki