Citizen Watch Company, Ltd.

Katsuhiko Komiyama

Toshio Hiruta

Tomomi Murakami

Satoshi Kimura

Yoshifumi Mochizuki

Noriyuki Kasama

Osamu Kamisawa

Keiji Tsukamoto

A module for a watch which indicates time based on clock signals generated by a quartz oscillator. The module includes two batteries disposed across a wheel-train. A circuit block has an arm extending to a motor coil through a space between the wheel-train bridge, supporting the wheel-train and one of the batteries. Driving signals are supplied to the coil from the circuit pattern on the arm of the circuit block.

Module for quartz watch

An electronic wristwatch has a capability to carry out a function other than timekeeping. For example, the wristwatch may have the ability to perform as a radio. The wristwatch comprises a main unit provided with an electronic watch unit, plus a radio receiver, and an auxiliary unit provided with a battery for driving the radio receiver. The auxiliary unit is detachably coupled to the main unit.

Electronic wristwatch

An electronic timepiece comprising a module composed of four constitutional elements, i.e. a liquid crystal cell, a liquid crystal cell position determining member, a circuit substrate and a protective cover is disclosed. To the protective cover are secured switch parts each having one end connected to a contact on the circuit substrate and the other end connected to an electrically conductive portion of a push button.

Electronic timepiece

A timepiece module having a liquid crystal display cell, a housing for supporting the liquid crystal display cell, a printed circuit substrate carrying thereon an LSI chip and various electronic components, a battery cell and a cover plate in which said battery cell and LSI chip are disposed on the same side on said printed circuit board.

Module structure for electronic digital timepiece

A wristwatch includes a module, and a display section overlying the module. The module has a recess which surrounds the display section and which accommodates a solar cell unit having a window therein for accommodating the display section. The unit is located by the co-operation of the edge of the window with projecting portions on the module. The upper surfaces of the display section and the solar cell unit are substantially flush. Support members for supporting the display section are electrically connected with a battery of the watch and have spring portions which are electrically connected to the solar cell unit.

Wristwatch with solar cells

An electronic digital timepiece having standard timekeeping, stopwatch, and timer functions, and a weekdays display section composed of a plurality of display segments selectively activated to indicate the day of the week in the standard timekeeping display mode, and which are rapidly and sequentially activated in a predetermined direction when operation is performed in a stopwatch mode, and are rapidly and sequentially activated in the opposite direction when operation is performed in the timer mode of operation, to indicate the type of operation mode.

Electronic digital timepiece having a stopwatch function and a timer

A solid state watch module construction has a ceramic substrate on which an integrated circuit chip is mounted to provide drive signals for causing an electro-optical display means to indicate the time. The ceramic substrate is interposed between a battery supporting frame and a cell supporting frame which positions the electro-optical display means with respect to the substrate. The battery supporting frame holds a battery in place, which is retained by a battery retaining member. A connector member is disposed between the ceramic substrate and the electro-optical display means to provide electrical connection therebetween. A plurality of tubes are used for fixedly connecting the battery supporting frame and the cell supporting frame.

Solid state watch module construction

An integrated circuit package structure wherein electrodes of an integrated circiut chip are directly bonded to metal lead members within the package. A portion of the substrate is enclosed inside the package to support the package. Holes are provided on the substrate for positioning and securing the package to the substrate. The substrate has a generally rectangular opening disposed therethrough arranged and configured to receive an integrated circuit chip and at least two additional openings disposed in said substrate so as to form at least two support arms adjacent to the rectangular opening. The integrated circuit package has a top member, a bottom member and a circuit chip. The circuit chip has a plurality of electrodes disposed thereon in a predetermined configuration for selectively coupling the lead members which are disposed on the substrate. By the use of the integrated circuit package structure of the present invention, circuit packages may be securely and easily coupled to a substrate and held in position.

Growing community of inventors

Tokyo, Japan

Katsuhiko Komiyama