Gerkema; Jan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Gerkema; Jan.The latest application filed is for "x-ray tube comprising an anode disc rotatably journalled on a helical-groove bearing".
- Gerkema; Jan - Eindhoven NL
- Gerkema; Jan - Emmasingel Eindhoven NL
| Patent | Date |
|---|---|
| X-ray tube comprising an anode disc rotatably journalled on a helical-groove bearing Grant 4,644,577 - Gerkema , et al. February 17, 1 | 1987-02-17 |
| X-ray tube comprising anode disc rotatably supported by bearing having push-pull bearing on an axial face Grant 4,641,332 - Gerkema February 3, 1 | 1987-02-03 |
| Metal-lubricated helical-groove bearing comprising an anti-wetting layer Grant 4,614,445 - Gerkema , et al. September 30, 1 | 1986-09-30 |
| X-Ray tube having a rotary anode Grant 4,562,587 - Gerkema , et al. December 31, 1 | 1985-12-31 |
| Rotary anode X-ray tube Grant 4,357,555 - Gerkema , et al. November 2, 1 | 1982-11-02 |
| Rotary-anode X-ray tube Grant 4,210,371 - Gerkema , et al. July 1, 1 | 1980-07-01 |
| Magnetic head using a magnetic field-sensitive element and method of manufacturing same Grant 4,151,574 - Gerkema , et al. April 24, 1 | 1979-04-24 |
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