Citizen Watch Company, Ltd.

Hidetaka Tsuchiya

Tomomi Murakami

Haruhiko Higuchi

Hiroyuki Kihara

Masami Fukuda

Masao Mafune

Masakazu Ichikawa

Nobuyuki Uehara

Kouichi Nakajima

Masahiro Kasaya

Koichi Nakajima

Takanori Nakahara

Motor driving apparatus

Constant-rate deflator for sphygmomanometer

Alarm clock

A watch with a dumb alarm has a time drive region which is electrically drivable and an alarm drive region which is drivable by a mechanical drive source. The alarm drive region has an alarm wheel engaging the hour wheel, an eccentric weight rotatably supported in an eccentric position, an alarm lever for urging the hour wheel toward the alarm wheel, the alarm lever having a distal end engageable with an engaging portion on the eccentric weight, an externally operable member for controlling the eccentric weight to start and stop operating, a spiral spring for rotating the eccentric weight, and a wheel train for transmitting drive forces from the spiral spring. When a preset time to be announced comes, the hour wheel engages the alarm wheel to allow the eccentric weight to start operating, and power of the spiral spring is transmitted through the wheel train to the eccentric weight to rotate the eccentric weight to produce vibrations thereof.

Watch with dumb alarm

A push button assembly for a wristwatch, tabletop calculator and the like is disclosed, made of plastic by molding. The push button assembly comprises a plurality of push buttons which are connected with each other by resilient connecting branches with each other. A pair of resilient connecting branches for each push button are symmetrically positioned about the central point of the top of the push button, so that each push button may be axially moved without tilting.

Push button assembly

A glass mounting structure for watches comprises a watch case made of plastic having an opening for the glass. A flange member made of metal plate is embedded in the watch case surrounding the opening. The flange has an inside flange portion which laterally extends into the opening for supporting the glass.

Plastic watch case

Growing community of inventors

Tanashi, Japan

Hidetaka Tsuchiya