Seiko Epson Corporation

Ngk Insulators, Inc.

Yoshio Morita

Masayuki Kikushima

Takayuki Kikuchi

Takao Soma

Kenya Kodaira

Osamu Kawauchi

Toshihiko Kano

Hideaki Kato

A device for measuring a physical value, such as a vibratory gyroscope, is provided. The device comprises a vibrator; a driving means for exciting a driving vibration in the vibrator; a detecting means for obtaining an output signal based on a detection vibration excited in the vibrator in response with the physical value; and a detection circuit for processing the output signal to provide a detection signal corresponding with the physical value. The vibrator has at least one bending vibration armsA andB vibrating in bending mode along a specified plane (X-Y plane). The bending vibration arm comprises at least a pair of base partsA,B and a connecting partconnecting the base partsA,B. The connecting and base parts define a pair of recessesA,B.

Devices for measuring physical values and vibrators

A compact and thin piezo-electric resonator is provided having a high air-tightness and available at a low cost, in which a piezo-electric resonator element is provided in a housing having a structure which permits adjustment of the frequency after sealing the housing. Further, a surface-mounting type piezo-electric resonator is provided, in which a piezo-electric resonator element is provided in a housing, having a structure which permits frequency adjustment through an opening provided in a base or a lid forming the housing.

Method of manufacturing a piezoelectric device

Piezo-electric resonator and manufacturing method thereof

A blank oscillator' is prepared for each office, and control data is written into this blank oscillator&#x2032;, thereby manufacturing an oscillator. Upon receiving an order from a user terminal, a business center serverselects the most suitable office for the delivery of the oscillator and sends the data to the office. A data writing apparatusinstalled in this office generates control data based on the data, and writes the control data into the blank oscillator&#x2032;, thereby manufacturing the oscillator

Order-receiving/manufacturing system for oscillators, control method therefor, business center server, and control-data writing apparatus

Growing community of inventors

Chino, Japan

Yoshio Morita