Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 5933070 | High-voltage variable resistor A high-voltage variable resistor capable of significantly small-sizing a circuit board as compared with the prior art. A terminal fitment is provided so as to act as an electrical connector for establishing electrical connection between a slide element fi... | 08/03/1999 |
| 5726625 | High-voltage variable resistor A high-voltage variable resistor capable of significantly small-sizing a circuit board as compared with the prior art. A terminal fitment is provided so as to act as an electrical connector for establishing electrical connection between a slide element fi... | 03/10/1998 |
| 5525955 | Capacitor coupled potentiometer An annular resistor member having two non-contact ends is overlaid and adhered on the surface of a base, and a rotational shaft located at the central portion of the resistor member is pivotally axially supported via a bearing. A bent electrode arm is fit... | 06/11/1996 |
