JAE YOUNG LEE
Medical Practice in Ann Arbor, MI

2013008, Apr 11, 2013

Oct 6, 2011

13/267546

Jae Seung Lee - Ann Arbor MI, US
Paul Donald Schmalenberg - Ann Arbor MI, US

Toyota Motor Engineering & Manufacturing North America, Inc. - Erlanger KY

H01Q 3/00

342372

Examples of the present invention include methods and apparatus for phased array automotive radar which allow reductions in erroneous detections such as sidelobe clutter and ghost images. An example radar includes a steerable transmit antenna and a steerable receive antenna. Transmit and receive beams may be steered using an electronic control circuit so the main lobe of the transmit beam remains generally aligned with the main lobe of the receive beam, and the side lobe of the receive beam remains generally aligned with a null in the transmit beam.

2013008, Apr 11, 2013

Oct 6, 2011

13/267605

Jae Seung Lee - Ann Arbor MI, US
Paul Donald Schmalenberg - Ann Arbor MI, US

Toyota Motor Engineering & Manufacturing North America, Inc. - Erlanger KY

G01S 7/40

342174

Examples of the present invention include calibration methods for phased array radar apparatus. The calibration methods include an electronic calibration of phase shifters, and compensation for mechanical misalignment. Approaches are particularly useful for automotive radar, and may be used for initial calibration after installation on a factory line, or at later times such as at a service station whenever recalibration becomes necessary.

2012008, Apr 12, 2012

Oct 8, 2010

12/900565

Jae Seung Lee - Ann Arbor MI, US
Paul Donald Schmalenberg - Ann Arbor MI, US

Toyota Motor Engineering & Manufacturing North America, Inc. - Erlanger KY

H01Q 3/00

342372

A microwave antenna system having a plurality of antenna elements arranged in an array having two spaced ends. A first phase shifter is electrically connected to a first group of at least two adjacent antenna elements at one end of the array to control the signal phase in that first group. Likewise, a second phase shifter is electrically connected to a second group of at least two adjacent array elements at the other end of the array to control the signal phase in the second group. Individual phase shifters are electrically connected to individual middle antenna elements for at least several of the middle antenna elements between the first and second groups.

2010023, Sep 16, 2010

Sep 30, 2009

12/570323

Jae Seung Lee - Ann Arbor MI, US
Ram B. Roy - Salisbury NC, US
Carl A. Everleigh - Raleigh NC, US
Scott A. Dunbar - Roscoe IL, US
John C. Carlin - West Berlin NJ, US
Lennart Hedman - Roscoe IL, US

GLOBAL RESOURCE CORPORATION - Mount Laurel NJ

B01J 19/12, B01J 19/08

204155, 422186

Disclosed are methods for microwave-based recovery of hydrocarbons and other carbonaceous materials from solid carbon-containing compositions such as tires. Also disclosed are associated apparatuses.

2014002, Jan 23, 2014

Jul 23, 2012

13/555864

Jae Seung Lee - Ann Arbor MI, US
Paul Donald Schmalenberg - Ann Arbor MI, US

Toyota Motor Engineering & Manufacturing North America, Inc. - Erlanger KY

G01S 13/93

342 70

Examples of the invention include radar apparatus having at least two phased array transmitters, each having a different elevation corresponding to heights of detected targets relative to the road surface. A low elevation transmit beam is directed at the road surface, and used to identify metal objects in the road surface, which often cause false detections in conventional devices but may not be actual collision hazards. A higher elevation transmitted beam is used to detect actual collision hazards to the vehicle.

8031116, Oct 4, 2011

Oct 22, 2010

12/910302

Jae Seung Lee - Ann Arbor MI, US
Paul Donald Schmalenberg - Ann Arbor MI, US

Toyota Motor Engineering & Manufacturing North America, Inc. - Erlanger KY

H01Q 3/26

342374, 342372, 342375

A microwave antenna system having a plurality of antenna elements arranged in an array having two spaced ends. A phase shifter is electrically connected to a first group of at least two adjacent antenna elements at one end of the array and is also electrically connected to a second group of at least two adjacent antenna elements adjacent the other end of the array. Individual phase shifters are connected to individual middle antenna elements for at least several of the antenna elements between the first and second groups of antenna elements. A switch selectively electrically connects a phase delay line in series between the phase shifter and the second group of antenna array elements to effectively double the number of good beam positions of the antenna array.

2012006, Mar 22, 2012

Sep 16, 2010

12/883862

Jae Seung Lee - Ann Arbor MI, US
Paul D. Schmalenberg - Ann Arbor MI, US
Amin Rida - Atlanta GA, US
Ronglin Li - Norcross GA, US
Emmanouil M. Tentzeris - Atlanta GA, US

Toyota Motor Engineering & Manufacturing North America, Inc. - Erlanger KY

H01Q 21/00

343893

An antenna with improved radiation efficiency is provided. The antenna includes an antenna array proximately coupled to a feed line. The antenna array includes a plurality of resonating lines. Each resonating line includes a plurality of axially aligned resonators. The resonators have a resonating surface. The resonating surfaces of the resonators at the ends of the resonating lines are larger than resonating surfaces of the resonators in the middle of the resonating lines. Power is supplied to each resonating ling through a feed line. Electrical field is uniformly distributed along the antenna array so as to improve the radiation efficiency of the antenna.

2014002, Jan 23, 2014

Jul 23, 2012

13/555814

Jae Seung Lee - Ann Arbor MI, US
Paul Donald Schmalenberg - Ann Arbor MI, US

Toyota Motor Engineering & Manufacturing North America, Inc. - Erlanger KY

G01S 13/00, H01Q 3/00

342175, 342372

A radar apparatus includes a receiver having a plurality of receiver channels, each including an antenna element, a phase shifter, and a switch. The antenna element provides a signal that passes through a phase shifter to a switch. The signal may then be passed to a summing element if the switch is closed. The summing element receives signals from the receive channels, and provides a sum signal to a mixer. In phased array mode, the switches are closed and antenna controller adjusts the phase angles of the phase shifters. In DBF mode, the phase shifters are maintained at a set value, and switches are operated sequentially to provide time-multiplexed signals from the receive channels to the summing element.

8421706, Apr 16, 2013

Feb 27, 2009

12/394563

Jae Seung Lee - Ann Arbor MI, US
Serdar H. Yonak - Ann Arbor MI, US
Jungsang Kim - Chapel Hill NC, US
Vinh N. Nguyen - Durham NC, US
David R. Smith - Durham NC, US

Toyota Motor Engineering & Manufacturing North America, Inc. - Erlanger KY
Duke University - Durham NC

H01Q 15/02, H01P 7/00

343909, 343753, 343700 MS, 333235

A metamaterial microwave lens having an array of electronic inductive capacitive cells in which each cell has an electrically conductive pattern which corresponds to incident electromagnetic radiation as a resonator. At least one cell has a first and second electrical sections insulated from each other and each which section has at least two legs. A static capacitor is electrically connected between one leg of the first section of the cell and one leg of the second section of the cell. A MEMS device is electrically disposed between the other legs of the first and second sections of the cell. The MEMS device is movable between at least two positions in response to an electrical bias between the first and second sections of the cell to vary the index of refraction and resonant frequency of the cell.