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Bunya Hayashi, Fumio Morikawa, Katsuhisa Endo: Manifold solenoid valve driven by serial signals. SMC Corporation, Oblon Spivak McClelland Maier & Neustadt P C, March 27, 2001: US06206045 (6 worldwide citation)


A manifold solenoid valve drive-controlled by serial signals permits extremely easy assembly and easy maintenance, and eliminates a possibility of erroneous wiring. For this purpose, compressed air is supplied and exhausted through manifold blocks


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Fumio Morikawa: Apparatus for and method of controlling operation of solenoid-operated valve. SMC Kabushiki Kaisha, Paul A Guss, August 11, 2009: US07573694 (1 worldwide citation)


A control circuit turns a transistor on and off in order to energize a drive coil of a solenoid-operated valve in a rated voltage mode at a duty ratio of 100% during a predetermined first period, which is sufficiently long to move a movable element in the drive coil, from the time when an operation ...


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Fumio Morikawa: Solenoid-operated valve controller. SMC Kabushiki Kaisha, Paul A Guss, July 20, 2010: US07758015


A solenoid-operated valve controller includes a first signal line and a second signal line, which are connected respectively to ends of a first solenoid coil and a second solenoid coil. The first solenoid coil and the second solenoid coil have other ends, which are electrically connected in common t ...


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Fumio Morikawa, Naoki Sakamura: Solenoid valve system. SMC KABUSHIKI KAISHA, Oblon McClelland Maier & Neustadt L, November 8, 2016: US09488990


In a solenoid valve system, a plurality of first through third solenoid valve units are divided into a plurality of first through third groups. In this case, a safety power source control unit is provided for controlling the first through third solenoid valve units with respect to each of the first ...


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Fumio Morikawa, Hiroshi Kondou: Flow rate control device. Smc Corporation, Yokoi & Co USA, November 18, 2004: US20040226615-A1


To control a flow rate ranging from an extremely-low rate to a high rate, particularly, to control an extremely-low flow rate accurately, the following processes are executed. A regulator, a flow rate adjustment valve connected in series downstream of the regulator and adjusting a valve opening of i ...


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Fumio Morikawa: Solenoid-Operated Valve Actuating Controller. Smc Kabushiki Kaisha, Paul A Guss, Paul A Guss Attorney At Law, January 25, 2007: US20070019356-A1


A solenoid-operated valve actuating controller actuates a solenoid-operated valve by energizing an actuating coil of the solenoid-operated valve in a rated mode, enough to move a movable member in the actuating coil, during a first period. Further, the actuating coil is energized in a power saving m ...


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Fumio Morikawa: Solenoid-Operated Valve Controller. Smc Kabushiki Kaisha, Paul A Guss, Paul A Guss Attorney At Law, June 28, 2007: US20070145316-A1


A solenoid-operated valve controller includes a first signal line and a second signal line, which are connected respectively to ends of a first solenoid coil and a second solenoid coil. The first solenoid coil and the second solenoid coil have other ends, which are electrically connected in common t ...


19
Fumio Morikawa: Signal input/output apparatus. Paul A Guss, Paul A Guss Attorney At Law, January 10, 2002: US20020004343-A1


A signal input unit transmits detection signals derived from sensors such as switches, limit switches, or pressure switches to a programmable controller by means of serial transmission. A signal output unit transmits control signals from the programmable controller to control apparatuses such as sol ...


20
Fumio Morikawa, Nobuyuki Ishitsuka: Method of driving and controlling a solenoid-operated valve. Paul A Guss, Paul A Guss Attorney At Law, March 21, 2002: US20020035414-A1


A method of driving and controlling a solenoid-operated valve is provided. The solenoid-operated valve can be centrally controlled and managed and it is possible to easily respond to any system change. The solenoid-operated valve is provided with a solenoid-operated valve driving control circuit for ...



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