Citizen Watch Company, Ltd.

Shingo Hashimoto

Mitsuo Sekine

Heihachiro Ebihara

Yasuhiko Nishikubo

Hiroyuki Fukayama

Kazuyuki Sunaga

Kaoru Kasugai

A magnetic recording head includes a read/write core and an erase core sandwiched and fixedly connected between a main slider and an auxiliary slider, a coil assembly having back bars closely attached to the respective cores which a read/write coil and an erase coil are wound around and fixed thereon, and a gimbal spring on which the main slider is fixed. The read/write coil and the erase coil are laterally arranged along in parallel with the gimbal spring, and the sliders, the cores and the coil assembly are respectively arranged on the one side of the gimbal spring.

Gimbal spring supported magnetic recording head

A voltage sensing circuit is disclosed, which utilizes a reference voltage generating circuit for producing a reference voltage whose value is determined as a function of absolute temperature, independent of circuit element variations, the reference voltage being generated by means of a pair of MOS field effect transistors having different values of Id/K, where Id is drain current and K is the channel pattern ratio W/L.

Voltage sensing circuit

A temperature sensing device is disclosed which utilizes a temperature sensing circuit which generates a voltage whose level varies linearly in accordance with temperature, this voltage being produced using a pair of MOS field effect transistors which have different values of the ratio Id/K, where Id is drain current and K is the channel pattern ratio of channel width to channel length.

Temperature sensing device

An electronic timepiece having an electronic circuit which comprises a monolithic integrated circuit including a multistage amplifier. The amplifier of the circuit is so designed that an amplitude control component, which has been considered indispensable in the existing art, is unnecessary in the circuit, whereby various types of electronic timepieces are obtainable in a simple and compact manner by applying the monolithic circuit to different types of oscillator means.

Growing community of inventors

Tokorozawa, Japan

Shingo Hashimoto