1
Fumio Morikawa: Signal input/output apparatus. SMC Kabushiki Kaisha, Paul A Guss, November 5, 2002: US06475036 (34 worldwide citation)


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 ...


2
Fumio Morikawa: Solenoid-operated valve actuating controller. SMC Kabushiki Kaisha, Paul A Guss, October 12, 2010: US07813101 (23 worldwide citation)


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 ...


3
Fumio Morikawa, Hiroshi Kondou: Flow rate control device. SMC Corporation, Peter Ganjian, July 4, 2006: US07069944 (15 worldwide citation)


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 ...


4
Bunya Hayashi, Fumio Morikawa, Katsuhisa Endo: Manifold solenoid valve driven by serial signals. SMC Corporation, Oblon Spivak McClelland Maier & Neustadt P C, December 26, 2000: US06164335 (13 worldwide citation)


In a manifold solenoid valve drive-controlled by serial signals, a solenoid valve itself is provided with a function for receiving serial signals for single valves or double valves so as to simplify assembly and replacement of the manifold solenoid valve. For this purpose, in order to transmit seria ...


5
Fumio Morikawa, Nobuyuki Ishitsuka, Makoto Ishikawa: Method and device for managing operation of solenoid valve. SMC Corporation, Oblon Spivak McClelland Maier & Neustadt P C, May 14, 2002: US06386229 (10 worldwide citation)


The present invention aims to permit an easy and reliable predicting of abnormality of a solenoid valve before failure, by detecting operating times of the solenoid valve and discriminating, from the operating times, whether the changeover operation thereof is normal or abnormal. To achieve this, th ...


6
Fumio Morikawa, Nobuyuki Ishitsuka: Method of driving and controlling a solenoid-operated valve. SMC Kabushiki Kaisha, Paul A Guss, October 21, 2003: US06636782 (9 worldwide citation)


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 ...


7
Fumio Morikawa, Nobuyuki Ishitsuka, Shinji Miyazoe: Input-output unit for serial-parallel signal conversion. SMC Corporation, Oblon Spivak McClelland Maier & Neustadt P C, March 9, 2004: US06704815 (9 worldwide citation)


An input-output unit for serial-parallel conversion has a simple structure and is capable of controlling various devices to be drive-controlled by a serial signal together or transmitting output signals from various sensors to a control system together by converting them into serial signals. For thi ...


8
Bunya Hayashi, Fumio Morikawa, Katsuhisa Endo: Manifold solenoid valve driven by serial signals. SMC Corporation, Oblon Spivak McClelland Maier & Neustadt P C, January 16, 2001: US06173745 (7 worldwide citation)


In a manifold solenoid valve drive-controlled by serial signals, control systems for a single valve and a double valve are achieved by simple switching of a single control system. For this purpose, in order to transmit serial signals to solenoid valves through manifold blocks


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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, January 9, 2001: US06170527 (6 worldwide citation)


In a manifold solenoid valve drive-controlled by serial signals, control systems for a single valve and a double valve are achieved by simple switching in a single control system. For this purpose, in order to transmit serial signals to solenoid valves through manifold blocks



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