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).

  • Solenoid-operated valve
    Publication number: 20030102453
    Abstract: A solenoid-operated valve comprises a first valve seat formed on a valve body and communicating a first port with a second port, a guide member arranged in the valve body, a second valve seat at a substantially central open portion of the guide member, a movable iron core attracted by a fixed iron core under magnetic excitation of a solenoid, a valve plug directly connected to the movable iron core, and an elastic section attached to the valve plug and seated on the first and second valve seats when the movable iron core is displaced.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 5, 2003
    Applicant: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Masami Yoshida, Noriya Sasaki
  • Flow rate control apparatus
    Publication number: 20030102032
    Abstract: A flow rate control apparatus is constructed by integrally assembling a pulsation-attenuating mechanism for balancing a regulated pilot pressure from a pressure-regulating section and a primary pressure of a pressure fluid flowing through a fluid passage to attenuate pressure fluctuation caused by pulsation of the pressure fluid, and a flow rate control mechanism for controlling a flow amount of the pressure fluid flowing through the fluid passage by adjusting a valve lift amount of a valve plug with a linear actuator controlled based on a rotary driving control signal from a controller.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 5, 2003
    Applicant: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Tadashi Uchino, Takamitsu Suzuki
  • Structure of fluid passage output port of fluid-operated apparatus
    Patent number: 6536810
    Abstract: A structure of a fluid passage output port of a fluid-operated apparatus comprises a first valve body composed of a resin material and formed with a fluid passage for allowing a fluid to flow therethrough; and a fluid passage output member formed of a resin material to have a substantially cylindrical configuration separately from the first valve body and screwed into a hole of the first valve body by the aid of a male thread; wherein a primary seal portion which intersects an axis of the fluid passage output member and a secondary seal portion which is substantially parallel to the axis are provided at a connecting portion thereof.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: March 25, 2003
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Mixing valve
    Publication number: 20030031087
    Abstract: A mixing valve comprises a valve body and a plurality of helical members. An agitation chamber is formed in the valve body. The plurality of helical members are disposed substantially in parallel in the valve body and have a number corresponding to a number of fluid supply ports. The plurality of helical members have helical passages on their outer circumferential surfaces and have ends facing the agitation chamber. Fluids are supplied from the fluid supply ports and pass through the helical passages.
    Type: Application
    Filed: August 9, 2002
    Publication date: February 13, 2003
    Applicant: SMC Kabushiki Kaisha
    Inventor: Yoshihiro Fukano
  • Solenoid-operated valve
    Publication number: 20030030020
    Abstract: A solenoid-operated valve comprises a bonnet, a cap member which is disposed in the bonnet, a fixed iron core which is connected to a central portion of the cap member, a movable iron core which is provided under the fixed iron core, which is displaceable under the exciting action of a coil, and which has an inclined surface having gradually contracted diameters, an annular sleeve which is disposed to surround an outer circumferential surface of the movable iron core, and a spring member which is interposed between an annular projection of the movable iron core and an annular groove of the sleeve.
    Type: Application
    Filed: August 9, 2002
    Publication date: February 13, 2003
    Applicant: SMC Kabushiki Kaisha
    Inventor: Yoshihiro Fukano
  • Flow rate control valve
    Publication number: 20030006389
    Abstract: A flow rate control valve includes a rotary driving source driven by an electric signal, a first movable member screwed axially displaceably in a screw hole by a rotary action of the rotary driving source, a second movable member displaced together with the first movable member, a diaphragm connected to the second movable member, a valve seat on which the diaphragm is seated, and a first fluid port and a second fluid port to which a pressure fluid is supplied or from which the pressure fluid is discharged.
    Type: Application
    Filed: July 5, 2002
    Publication date: January 9, 2003
    Applicant: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Kousaku Inamoto
  • Two-way valve with detachable detection section
    Patent number: 6481460
    Abstract: A two-way valve has a proximity switch attached detachably to the outside of a bonnet. A metallic detection member is connected to an end of a rod which is displaced in unison with a diaphragm for opening and closing a fluid passage in the two-way valve. The proximity switch detects the metallic detection member for detecting whether said two-way valve is in the ON state where the fluid passage is opened or the two-way valve is in the OFF state where the fluid passage is closed.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: November 19, 2002
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Two-way valve with indicator section for indicating an on/off state of the valve
    Patent number: 6481459
    Abstract: A two-way valve has a diaphragm for opening and closing a fluid passage under an action of a pilot pressure. Further, the two-way valve has an indicator section. Displacement of a first rod and a second rod connected to the diaphragm is directly transmitted to the indicator section so that the indicator section can indicate whether the two-way valve is in the ON state where the fluid passage is opened or the two-way valve is in the OFF state where the fluid passage is closed.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: November 19, 2002
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Tube connection structure of fluid pressure-operated apparatus
    Patent number: 6450543
    Abstract: An insert section of an insert member is inserted into a tube member in a state in which the insert member is detached from a recess to form a diametrally expanded section on the tube member. Subsequently, the insert member is fitted to the recess to install the tube member to the recess. At this stage, an outer circumferential surface of an expanded section of the insert member tightly contacts with an inner circumferential surface of the recess to effect the sealing function. Subsequently, a tapered section and an outer circumferential surface of the tube member are resin-welded by using a welding material. Thus, the tube member is prevented from disengagement from a body.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: September 17, 2002
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Tetsuro Maruyama
  • Tube joint having tightening member for accommodating tubes of varying wall thickness
    Patent number: 6435568
    Abstract: When an insert member is inserted into a fluid passage of a fluid tube, the fluid tube is diametrically enlarged by a tapered section. When a female thread of a nut member is meshed with a male thread of a main body section, first and second edge sections are engaged so that they bite into the outer circumference of the fluid tube diametrally enlarged by the tapered section. Accordingly, various fluid tubes, which are identical in outer diameter size but which are slightly different in wall thickness, are reliably prevented from disengagement from a tube joint.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: August 20, 2002
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Tetsuro Maruyama
  • Solenoid-operated valve
    Publication number: 20020084435
    Abstract: A solenoid-operated valve comprises first and second elastic ring members each of which is made of an elastic material such as rubber, which retain a peripheral edge of a diaphragm, and which are flexibly bent in accordance with displacement of the diaphragm. A pair of lip sections is formed on the first and second elastic ring members.
    Type: Application
    Filed: December 24, 2001
    Publication date: July 4, 2002
    Applicant: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Flow rate control valve
    Publication number: 20020070370
    Abstract: A flow rate control valve includes a coil disposed in a first body, a movable iron core axially displaceable under a magnetically exciting action of the coil, a fixed iron core fixed in the first body, a fluid supply port supplied with a fluid, a fluid discharge port discharging the fluid, a projection formed for a diaphragm which is connected to the movable iron core and which is formed of an elastic member, a valve seat for the projection to be inserted therein, and a spring which urges the movable iron core to separate from the fixed iron core in a non-excited state.
    Type: Application
    Filed: December 10, 2001
    Publication date: June 13, 2002
    Applicant: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Kousaku Inamoto
  • Solenoid-operated valve
    Patent number: 6390445
    Abstract: A solenoid-operated valve has a disk-shaped member connected to one end of a movable iron core, for integrally interlocking the movable iron core; and a lining member formed of an elastic material for covering the disk-shaped member; wherein when a solenoid section is in a non-excited state, only a part of a projection formed on the lining member contacts with a lower surface of a ring member, and when the solenoid section is excited, a contact area of the projection with respect to the ring member is gradually increased.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: May 21, 2002
    Assignee: SMC Kabushiki Kaisha
    Inventor: Yoshihiro Fukano
  • Two-way valve
    Publication number: 20020053651
    Abstract: A first displacement mechanism disposed on the axially lower side includes a first piston, a piston rod displaceable integrally with the first piston, and a diaphragm connected to the piston rod. A second displacement mechanism disposed on the axially upper side includes a second piston for moving the piston rod to slide along a through-hole. A displacement amount of the first piston and a displacement amount of the second piston are different.
    Type: Application
    Filed: November 5, 2001
    Publication date: May 9, 2002
    Applicant: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Valve for dust collector
    Patent number: 6354562
    Abstract: A valve for a dust collector comprises a bonnet and a valve body formed with a fluid port for introducing a pressure fluid filled in a pressure vessel; a diaphragm provided displaceably in accordance with an action of the pressure fluid introduced into a diaphragm chamber, for opening/closing a passage for making communication between the fluid port and a main dust collector body; and a disk member provided displaceably integrally with the diaphragm to shield the diaphragm so that it serves as a pressure-receiving surface for the pressure fluid when the pressure fluid is supplied to the main dust collector body.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: March 12, 2002
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Masami Yoshida
  • Two-way valve
    Publication number: 20020003222
    Abstract: A two-way valve has a valve mechanism comprising a displacement mechanism for opening and closing a fluid passage by an action of a pilot pressure from a pilot port. The pilot port is formed on an annular member disposed between a body and a bonnet and is rotatable circumferentially by the annular member.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 10, 2002
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Two-way valve
    Publication number: 20020002999
    Abstract: A two-way valve has a proximity switch attached detachably to the outside of a bonnet. A metallic detection member is connected to an end of a rod which is displaced in unison with a diaphragm for opening and closing a fluid passage in the two-way valve. The proximity switch detects the metallic detection member for detecting whether said two-way valve is in the ON state where the fluid passage is opened or the two-way valve is in the OFF state where the fluid passage is closed.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 10, 2002
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Two-way valve
    Publication number: 20020002998
    Abstract: A two-way valve has a diaphragm for opening and closing a fluid passage under an action of a pilot pressure. Further, the two-way valve has an indicator section. Displacement of a first rod and a second rod connected to the diaphragm is directly transmitted to the indicator section so that the indicator section can indicate whether the two-way valve is in the ON state where the fluid passage is opened or the two-way valve is in the OFF state where said fluid passage is closed.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 10, 2002
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Directional control valve
    Patent number: 6318408
    Abstract: A three-way valve comprises a valve body which is formed to have a rectangular parallelepiped-shaped configuration and which has a plurality of ports provided in juxtaposition on a first side surface having a narrow width, a solenoid section which is provided at the inside of a casing and which includes a fixed iron core, a movable iron core, and an electromagnetic coil, and a valve mechanism section provided with a diaphragm which is arranged coaxially with the solenoid section and which is displaceable in accordance with an exciting action on the electromagnetic coil to switch the communication state between the first to third ports.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: November 20, 2001
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Shoichi Makado
  • Solenoid-operated valve
    Publication number: 20010023931
    Abstract: A solenoid-operated valve comprises a disk-shaped member connected to one end of a movable iron core, for integrally interlocking the movable iron core; and a lining member formed of an elastic material for covering the disk-shaped member; wherein when a solenoid section is in a non-excited state, only a part of a projection formed on the lining member contacts with a lower surface of a ring member, and when the solenoid section is excited, a contact area of the projection with respect to the ring member is gradually increased.
    Type: Application
    Filed: March 16, 2001
    Publication date: September 27, 2001
    Inventor: Yoshihiro Fukano