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Ichiro Ueda Patents |
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Inventor: Ueda; Ichiro
Address: Yokohama, JP
No. of patents: 9
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5610344 |
Environmental test apparatus |
March 11, 1997 |
| An environmental test apparatus comprising a substrate on which a test specimen is mounted securely, a cover disposed on the substrate for housing the test specimen within a tightly closed space thereof, a temperature/moisture adjusting system for adjusting temperature and moisture i |
| 5346035 |
Fork lift truck with rotatable seat and operator controls |
September 13, 1994 |
| A self-propelled fork lift truck comprises a working mechanism at the front end of the fork left truck, a revolving driver's stand, a driver's seat and a steering wheel mounted on the revolving driver's stand, a speed change gear having a plurality of speed shifting ratios for running in |
| 5308462 |
Process for producing a ferroelectric film device |
May 3, 1994 |
| For applying ferroelectrics to electronic devices, the poling treatment of the ferroelectrics has been necessary in order to uniform directions of spontaneous polarizations, Ps, in each ferroelectric. This treatment brings about (1) low yields of the devices, (2) difficulties in the |
| 4442220 |
Dielectric ceramics |
April 10, 1984 |
| A dielectric ceramic composition consisting essentially of a solid solution represented by the formula:wherein 0.05.ltoreq.x.ltoreq.0.23, 0.57.ltoreq.y.ltoreq.0.825, 0.025.ltoreq.Z.ltoreq.0.375, x+y+z=1, 0<v.ltoreq.0.95, 0.ltoreq.u<0.95 and 0<(v+u).ltoreq.0.95.The dielectric cer |
| 4338403 |
Dielectric ceramics |
July 6, 1982 |
| A dielectric ceramic consisting essentially of at least 88 weight % of a main component and up to 12 weight % of stannic oxide (SnO.sub.2), said main component consisting essentially of 34.5 to 82 weight % of titanium oxide (TiO.sub.2), 9 to 63 weight % of Praseodymium oxide (Pr.sub.6 |
| 4330631 |
Dielectric ceramics |
May 18, 1982 |
| A dielectric ceramic consisting essentially of a solid solution represented by the formula:wherein 5.ltoreq.x.ltoreq.23, 57.ltoreq.y.ltoreq.82.5, 2.5.ltoreq.z.ltoreq.37.5, and x+y+z=100.The dielectric ceramic exibits large dielectric constant and low microwave loss with high temperature- |
| 4248727 |
Dielectric ceramics |
February 3, 1981 |
| A dielectric ceramic having a composition expressible by (1-w) (xBaO.multidot.yNa.sub.2 O.multidot.zNb.sub.2 O.sub.5)+wMeO.multidot.ZrO.sub.2 wherein Me denotes Ca or Sr, 0.593.ltoreq.x.ltoreq.0.762, 0.04.ltoreq.y.ltoreq.0.13, 0.174.ltoreq.z.ltoreq.0.32, x+y-z=1, and 0<w.ltoreq.0. |
| 4226827 |
Method for preparing piezoelectric ceramics |
October 7, 1980 |
| A piezoelectric ceramic elements obtained by hot-press sintering a composition expressed by the formula:at a temperature of 1050.degree. to 1300.degree. C. under a pressure of 100 to 500 Kg/cm.sup.2 for 0.5 to 24 hours shows a mechanical quality factor of 200 or more and a Poisson's rati |
| 4121941 |
Low microwave loss ceramics and method of manufacturing the same |
October 24, 1978 |
| Calcined material having a composition including at least two of the components 3BaO.ZnO.Nb.sub.2 O.sub.5, 3BaO.ZnO.Ta.sub.2 O.sub.5, 3BaO.MgO.Nb.sub.2 O.sub.5, and 3BaO.MgO.Ta.sub.2 O.sub.5 and produced under optimum processing conditions as disclosed is employed for obtaining ceram |
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