1
Kenji Waragai, Tsuneo Ishigaki: Gate valve. SMC Kabushiki Kaisha, Paul A Guss, October 9, 2001: US06299133 (34 worldwide citation)


A gate valve comprises a valve rod for making displacement in accordance with a driving action of a cylinder mechanism; a guide shaft for guiding the valve rod; a valve disk for opening/closing a passage in accordance with a displacement action of the valve rod; a rack connected to the valve rod, fo ...


2
Tsuneo Ishigaki: Vacuum-pressure-control slow exhaust valve. SMC Corporation, Oblon Spivak McClelland Maier & Neustadt P C, December 15, 1998: US05848608 (28 worldwide citation)


To reduce the axial length of a slow exhaust valve and thus the size of the valve, a secondary valve seat and a secondary valve body constituting a secondary valve mechanism for restrictively opening a channel connecting a chamber port and a pump port during the first half of the exhaust process in ...


3
Hidetsugu Fujitani, Tsuneo Ishigaki, Tetsuro Tokuda: Solenoid actuator. Shoketsu Kinzoku Kogyo Kabushiki Kaisha, Oblon Fisher Spivak McClelland & Maier, April 17, 1984: US04443775 (25 worldwide citation)


A solenoid actuator of high performance comprising a coil surrounded externally with a magnetic frame and having a stationary core disposed therein, with a movable core attracted to the stationary core upon energizing the coil being disposed axially slidably, wherein the magnetic frame comprises a p ...


4
Tsuneo Ishigaki, Mamoru Fukuda, Yasuyuki Nishimura, Kazumasa Nishida: Low load seal. Mitsubishi Cable, SMC Corporation, Armstrong Westerman & Hattori, February 25, 2003: US06523833 (24 worldwide citation)


A ring-shaped low load seal attached into a ring-shaped dovetail groove having an opening portion, a first side wall face, a second side wall face, and a bottom wall face. This seal has a trileaf cross-sectional configuration composed of a first arc portion, a second arc portion, a protruding portio ...


5
Tsuneo Ishigaki, Kenji Waragai, Ikuo Kanzaka: Gate valve. SMC Kabushiki Kaisha, Paul A Guss, May 21, 2002: US06390449 (19 worldwide citation)


A gate valve is disclosed comprising an elevatable lever member connected to a piston rod, a displacement member for making up and down movements integrally with the lever member and being tiltably disposed about supporting rollers acting as a pivot point or fulcrum at an end position of displacemen ...


6
Tsuneo Ishigaki: Pilot-controlled electromagnetic valve. Shoketsu Kinzoku Kogyo Kabushiki Kaisha, James C Haight, November 30, 1976: US03994318 (16 worldwide citation)


A pilot-controlled electromagnetic valve having a pilot valve mounted on a member which is supported movably relative to a solenoid plunger and a main valve and connected to the plunger through a spring such that a pilot orifice is opened when the plunger approaches a fixed core of the solenoid unde ...


7
Tsuneo Ishigaki: Opening/closing valve. SMC Kabushiki Kaisha, Paul A Guss, November 12, 2002: US06478043 (11 worldwide citation)


An opening/closing valve comprises a valve body having a first port and a second port for allowing a pressure fluid to flow therethrough, a valve disk for opening/closing a communicating passage between the first port and the second port in accordance with a displacement action of a piston rod, firs ...


8
Tsuneo Ishigaki: Pilot mode two-port solenoid valve. SMC Corporation, Oblon Fisher Spivak McClelland & Maier, January 5, 1988: US04717116 (10 worldwide citation)


A two-port solenoid valve of the pilot-assisted type that is designed to function even when there is no pressure difference between the primary and secondary control passages. A pilot valve actuated by the armature of a solenoid opens and closes a pilot discharge passage, with the armature being als ...


9
Tsuneo Ishigaki: Gate valve. SMC Corporation, Baker Botts L, June 27, 2006: US07066443 (10 worldwide citation)


A gate valve has a transfer chamber-side valve element and a process chamber-side valve element connected to a single shaft actuated with a single three-position air cylinder to selectively close a process chamber opening and a transfer chamber opening or fully open both the openings to allow an obj ...


10
Tsuneo Ishigaki: Solenoid actuator for electromagnetic valve. Shoketsu Kinzoku Kogyo Kabushiki Kaisha, Oblon Fisher Spivak McClelland & Maier, October 11, 1983: US04409580 (10 worldwide citation)


A solenoid actuator for use with an electromagnetic valve which includes a magnetic frame for establishing a magnetic circuit around an energizing coil, which is formed by bending a sheet-like magnetic frame constituent plate with an eddy current eliminating slit being defined therein, thereby enabl ...



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