
US Patent No: 8,017,864
Number of patents in Portfolio can not be more than 2000
Carbon nano tube Litz wire for low loss inductors and resonators
Stats
-
Sep 13, 2011
Issued date -
Mar 18, 2010
filing date -
12/726,747
serial no -
In Force
status
Importance
Abstract
An upper frequency-range circuit (160) includes a load element (168) exhibiting a capacitive load impedance. A first matching network (166) includes at least one nano-scale Litz wire (100) inductor. The first matching network (166) exhibits an inductive impedance that nominally matches the capacitive load impedance. An electrical conductor for providing connections for radio-frequency signals includes a plurality of nano-scale conductors (120) that are arranged in the form of a Litz wire (100). In one method of making a Litz wire (142), a plurality of carbon nanotubes (144) is placed on a substrate (146). The carbon nanotubes (144) are woven according to a predefined scheme so as to form a Litz wire (142). An inductor may be formed by manipulating the Litz wire (100) to form a coil (150).
First Claim
Related Publications
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 5,445,635 Regulated-current power supply and methods for resistively-heated surgical instruments | 75 | 1994 | |
|
|
|||
| 4,673,888 Power control system | 23 | 1986 | |
|
|
|||
| 2007/0257,859 Nanostructured antennas and methods of manufacturing same | 3 | 2006 | |
|
|
|||
| 2003/0135,971 Bundle draw based processing of nanofibers and method of making | 60 | 2002 | |
|
|
|||
| 2002/0163,414 Coil-based electronic & electrical components (such as coils, transformers, filters and motors) based on nanotechnology | 14 | 2001 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Mar 13, 2015 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 13, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 13, 2023 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |