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Hakki
Hakki Han, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100282546 | MAGNETIC ELEVATOR DOOR COUPLER - An elevator door coupler includes a vane member adapted to be supported on one of a hoistway door or an elevator car door. A magnetic coupler device ( | 11-11-2010 |
Hakki Yegingil, Philadelphia, PA US
| Patent application number | Description | Published |
|---|---|---|
| 20100148519 | ENERGY HARVESTING DEVICE - A piezoelectric energy harvesting device (PEHD) comprising a driving element, conducting element, piezoelectric layer and non-piezoelectric layer capable of converting ambient mechanical energy into electrical energy. The piezoelectric layer may be constructed from PMN-PT or PZT having a thickness of about 1-150 ?m. The PEHD may be used to generate about 1 W. The harvested energy may be stored and used to power microelectronic devices and rechargeable battery technologies. | 06-17-2010 |
| 20100281962 | ALL ELECTRIC PIEZOELECTRIC FINGER SENSOR (PEFS) FOR SOFT MATERIAL STIFFNESS MEASUREMENT - A PEFS (Piezoelectric Finger Sensor) acts as an “electronic finger” capable of accurately and non-destructively measuring both the Young's compression modulus and shear modulus of tissues with gentle touches to the surface. The PEFS measures both the Young's compression modulus and shear modulus variations in tissue generating a less than one-millimeter spatial resolution up to a depth of several centimeters. This offers great potential for in-vivo early detection of diseases. A portable hand-held device is also disclosed. The PEF offers superior sensitivity. | 11-11-2010 |
Hakki Yengingil, Philadelphia, PA US
| Patent application number | Description | Published |
|---|---|---|
| 20090145246 | ALL-ELECTRIC PIEZOELECTRIC FINGER SENSOR (PEFS) FOR SOFT MATERIAL STIFFNESS MEASUREMENT - A PEFS (Piezoelectric Finger Sensor) acts as an “electronic finger” capable of accurately and non-destructively measuring both the Young's compression modulus and shear modulus of tissues with gentle touches to the surface. The PEFS measures both the Young's compression modulus and shear modulus variations in tissue generating a less than one-millimeter spatial resolution up to a depth of several centimeters. This offers great potential for in-vivo early detection of diseases. A portable hand-held device is also disclosed. The PEF offers superior sensitivity. | 06-11-2009 |