Piezoelectric devices in Japan

Quartz is still one of the most important piezoelectric materials, but the field of piezoelectric devices has seen great progress due to discovery and development of new excellent materials, especially piezoelectric ceramics consisting of ferroelectric compounds.The first practical devices made of barium titanate ceramics in Japan were ultrasonic transducers for fish-finders. At the beginning of the piezoelectric-ceramics-age, many other devices such as tuning forks, vibration reeds, and mechanical filters driven by piezoelectric ceramics were studied, but all of these devices were brought into production only after the more stable and efficient ceramic material, lead zirconate titanate ceramics, had been established. At present, the ceramic filters are mass-produced and enjoy a larger market than any other piezoelectric devices.In this paper, a brief history and the present status of research and development of piezoelectric materials and devices in Japan are described with some considerations of various...

[1]  H. Kawai,et al.  The Piezoelectricity of Poly (vinylidene Fluoride) , 1969 .

[2]  I. Ueda,et al.  Electromechanical Properties of PbTiO3 Ceramics Containing La and Mn , 1971 .

[3]  Shepard Roberts,et al.  Dielectric and Piezoelectric Properties of Barium Titanate , 1947 .

[4]  M. Konno,et al.  Mechanical Filters-A Review of Progress , 1971, IEEE Transactions on Sonics and Ultrasonics.

[5]  I. Ueda,et al.  Piezoelectric Properties of Modified PbTiO3 Ceramics , 1968 .

[6]  M. Onoe,et al.  High Frequency Crystal Filters Employing Multiple Mode Resonators Vibrating In Trapped Energy Modes , 1966 .

[7]  Shigeru Hayakawa,et al.  Piezoelectric Properties of Pb(Mg1/3Nb2/3)O3—PbTiO3—PbZrO3 Solid Solution Ceramics , 1965 .

[8]  E. Sawaguchi.  Ferroelectricity versus Antiferroelectricity in the Solid Solutions of PbZrO3 and PbTiO3 , 1953 .

[9]  B. J. Darby,et al.  Surface Wave Filters , 1978 .

[10]  M. Onoe.  Crystal, ceramic, and mechanical filters in Japan , 1979, Proceedings of the IEEE.

[11]  Frank Kulcsar,et al.  Electromechanical Properties of BaTiO3 Compositions Showing Substantial Shifts in Phase Transition Points , 1952 .

[12]  Y. Takagi.  Ferroelectricity and Antiferroelectricity of a Crystal Containing Rotatable Polar Molecules , 1952 .

[13]  Richard M. White,et al.  DIRECT PIEZOELECTRIC COUPLING TO SURFACE ELASTIC WAVES , 1965 .

[14]  R. Roth,et al.  Piezoelectric Properties of Lead Zirconate‐Lead Titanate Solid‐Solution Ceramics , 1954 .

[15]  W. Shockley,et al.  Energy Trapping and Related Studies of Multiple Electrode Filter Crystals , 1963 .