Yamatake-honeywell Co., Ltd.

Fuji Photo Film Company, Limited

Minoru Tanaka

Takashi Sato

Hirokazu Saito

Ikuo Nishimoto

Tomio Suzuki

Seiichi Yukawa

Nobutoshi Aoyagi

Kiyoyuki Ushirokozi

In the photoelectric conversion method and apparatus applicable to displacement sensors irradiating light to objects and sensing the distances to the objects, distance-determining type photoelectric sensors etc., the method and apparatus arrange n (n&gt;2) light-receiving elements in a predetermined direction, and divide each photoelectric current I1, I2, . . . , In of each light-receiving element in predetermined ratios k1 to 1-k1, k2 to 1-k2, . . . , kn to 1-kn; and lead the divided photoelectric currents to the first and the second photoelectric current output terminal, and control the predetermined ratios k1, k2, . . . , kn in keeping such relationships as k1&gt;0.5&gt;kn and km.ltoreq.kp (p=m-1; m=2 to n), therefore the arbitrary positions on the light-receiving surface can be set in high sensibility, and high speed responsibility can be attained.

Photoelectric conversion method and apparatus thereof

A melting tank for melting a gelled substance charged therein. The walls of the tank are heating. A first agitating blade agitates the bulk of the gelled substance to promote heat exchange with the walls. A second agitating blade is located closely adjacent a screen separating the gelled substance from a port at the bottom of the tank that is left open during agitation. Thereby, the melt flows down the walls of the tank and flows through the screen to the port.

Method and apparatus for continuous melting of gelled substance

A control system having combined closed loop and duty cycle functions uses a differential amplifier for amplifying the difference between a setpoint or reference temperature for a system to be controlled and a detected system temperature, a thermostat having a differential circuit for providing a predetermined hysteresis lag for an output of the amplifier and a duty cycle generating circuit for changing the operating potential of the differential circuit in accordance with a predetermined duty cycle to shift the operating point of the differential circuit.

Control system using combined closed loop and duty cycle control

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Kanagawa, Japan

Minoru Tanaka