| Patent Number |
Title Of Patent |
Date Issued |
| 5854870 |
Short-wavelength laser light source |
December 29, 1998 |
| There is disclosed a harmonic modulation device of waveguide type including a semiconductor laser, a waveguide for generating a nonlinear optical harmonic of the semiconductor laser by keeping phase matching, means for leading an optical beam of the semiconductor laser to the waveguide, |
| 5789902 |
Bi-direction current control circuit for monitoring charge/discharge of a battery |
August 4, 1998 |
| A battery-monitoring circuit includes a bidirectionally current-controllable means disposed between a secondary battery and a charging circuit or a load circuit for monitoring the charge or discharge of the secondary battery to prevent undesirable charging. The current control means |
| 5412502 |
Second harmonic generating element and the production method thereof |
May 2, 1995 |
| Using an LiTaO.sub.3 or LiNbO.sub.3 substrate, a proton exchange layer in a grid pattern, namely sprout areas of polarization inversion, is firstly, formed on the surface of said substrate and, after formation of the pattern, heat treatment is executed at a temperature of 200.degree. C. |
| 5371482 |
Magnetostatic wave device containing acoustic wave absorbing layer |
December 6, 1994 |
| A circuit element utilizing magnetostatic is formed with an acoustic wave absorbing layer on the other major surface of a non-magnetic substrate remote from the major surface where a magnetostatic wave propagation medium is formed, for the purpose of effectively suppressing an unnece |
| 5359452 |
Lithium tantalate monocrystal, monocrystal substrate, and photo element |
October 25, 1994 |
| 0.1% or more of Mg by weight is added to lithium tantalate monocrystal materials wherein the amount of Fe is restricted to 10 ppm by weight or less to improve light transmittance in the short wavelength range of blue light and to shift the fundamental absorption edge to the shorter w |
| 5357898 |
Method of producing single crystal and apparatus therefor |
October 25, 1994 |
| In growing an oxide single crystal such as a garnet single crystal or ferrite single crystal by the liquid epitaxial process, the Bridgman process or the like, the melting-out of a platinum or platinum-based alloy-made crucible holding a melt for growing the crystal therefrom is prev |
| 5192928 |
Circuit element having ferrimagnetic film with deviated end surfaces for suppressing spurious ma |
March 9, 1993 |
| A circuit element utilizing a magnetostatic wave is disclosed which uses a magnetostatic-wave resonator having a structure wherein a thin YIG (yttrium iron garnet) film is formed on a non-magnetic substrate such as a GGG (gadolium gallium garnet) substrate and defining a wave propagation |
| 5189383 |
Circuit element utilizing magnetostatic wave |
February 23, 1993 |
| A circuit element utilizing a magnetostatic wave is disclosed which uses a magnetostatic-wave resonator having a structure that a thin YIG (yttrium iron garnet) film is formed on a non-magnetic substrate such as a GGG (gadolinium gallium garnet) substrate. In this resonator, at least a p |
| 5168254 |
Magnetostatic wave device with minimized higher order mode excitations |
December 1, 1992 |
| A magnetostatic wave device has a nonmagnetic substrate, a magnetic thin film formed on the nonomagnetic substrate, and a plurality of electrodes. By applying a magnetic field from the outside in parallel with or perpendicularly to the magnetic thin film, a magnetostatic wave is excited |
| 5053734 |
Magnetostatic wave device |
October 1, 1991 |
| A magnetostatic wave device comprises a magnetic thin film formed on a non-magnetic substrate, one or a plurality of electrode fingers and pad electrodes formed on the above described magnetic thin film, a magnetostatic wave resonator for exciting and propagating a magnetostatic wave |
| 4992760 |
Magnetostatic wave device and chip therefor |
February 12, 1991 |
| A chip for a magnetostatic wave device comprising; a base substrate consisting of a dielectric monocrystalline base plate and a ferrimagnetic monocrystalline film formed on the base plate; an excitation means for magnetostatic waves formed on the ferrimagnetic film when it is given a |
