Quotables
"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5770982 | Self isolating high frequency saturable reactor The present invention discloses a saturable reactor and a method for decoupling the interwinding capacitance from the frequency limitations of the reactor so that the equivalent electrical circuit of the saturable reactor comprises a variable inductor. Th... | 06/23/1998 |
| 5585766 | Electrically tuned matching networks using adjustable inductance elements A plasma processing system for use in fabricating electronic devices including an RF generator; a process chamber including an electrical load which produces a plasma within the chamber when powered by the RF generator; an electronically tunable matching ... | 12/17/1996 |
| 5574410 | Electronically tuned matching networks using adjustable inductance elements and resonant tank circuits The disclosure discusses impedance matching circuits based on parallel-resonant L-C tank circuits, and describes a low-loss design for an adjustable inductance element suitable for use in these parallel tank circuits. The application of an impedance match... | 11/12/1996 |
| 5424691 | Apparatus and method for electronically controlled admittance matching network An apparatus for dynamically matching a radio-frequency source for semiconductor processing to a load, and particularly adapted for plasma sputtering and etching processes, comprises an admittance matching network utilizing magnetically saturable inductor... | 06/13/1995 |
| 5040239 | Tuning circuit and receiver In a tuning circuit, use is made of a current-controlled type variable inductor comprising a tuning coil and a control coil for controlling the magnetic flux density of the tuning coil. The tuning coil is connected in series with the antenna; a tuning cap... | 08/13/1991 |
| 4630013 | Current controlled variable inductor An inductor is configured so as to wind a control coil on one of winding portions of first and second cores and to wind a tuning coil on the other winding portion to insert the second core into a hollow portion provided inside the first core, thereafter a... | 12/16/1986 |
