Steven Chul Yu

US Patent:

20080055076, Mar 6, 2008

Filed:

Sep 4, 2007

Appl. No.:

11/849712

Inventors:

Steven S. Yu - Silver Spring MD, US

International Classification:

G08B 1/00

US Classification:

34053923

Abstract:

A personal article, such as a handbag, comprising a wireless companion proximity detector system which includes one or more electronic components. The electronic components may be a transmitter for transmitting a signal, receiver for receiving a signal, or a notifier. In some cases, the wireless signals may be RF signals. In some cases, one or more of the electronic components are attached to the personal article.

US Patent:

20080055083, Mar 6, 2008

Filed:

Mar 16, 2007

Appl. No.:

11/687547

Inventors:

Steven S. Yu - Silver Spring MD, US

International Classification:

G08B 1/08

US Classification:

340571

Abstract:

A personal article, such as a handbag, comprising a wireless companion proximity detector system which includes one or more electronic components. The electronic components may be a transmitter for transmitting a signal, receiver for receiving a signal, or a notifier. In some cases, the wireless signals may be RF signals. In some cases, one or more of the electronic components are attached to the personal article.

US Patent:

20130325754, Dec 5, 2013

Filed:

Mar 11, 2013

Appl. No.:

13/792203

Inventors:

Steven Sounyoung Yu - Rockville MD, US

International Classification:

G06Q 50/20

US Classification:

705500

Abstract:

A residential housing complex that includes a school. The school (e.g. primary and/or secondary school) uses a machine-guided teaching curriculum. For example, the school can implement a blended learning curriculum. The residential housing complex may be located in urban areas to provide better schools for families with children.

US Patent:

20200046536, Feb 13, 2020

Filed:

Oct 22, 2019

Appl. No.:

16/660042

Inventors:

Steven Sounyoung Yu - Fairfax VA, US

International Classification:

A61F 5/00
A61B 17/11
A61M 27/00

Abstract:

Biliary diversion catheters for diverting bile fluid from a part of the patient's biliary tree to the patient's distal small intestine. The catheter comprises a system of interconnected or interconnectable tubes: a biliary tube segment, an intestinal (e.g. ileal or jejunal) tube segment, and a flush tube segment. The biliary diversion catheter is designed such that bile fluid flows into the biliary tube segment and is shunted into the distal small intestine via the intestinal tube segment. The flush tube segment is used to infuse flush fluid into the catheter (e.g. to clear out any debris within the tube system of the catheter). The biliary tube segment and the intestinal tube segment may together form a drainage tube or an anastomotic component. The flush tube segment and the intestinal tube segment may together form a transabdominal tube.

US Patent:

20190201161, Jul 4, 2019

Filed:

Feb 24, 2019

Appl. No.:

16/283804

Inventors:

Steven Sounyoung Yu - Fairfax VA, US

International Classification:

A61B 90/50
A61B 90/30
G02B 21/00
A61B 90/00
G02B 27/01

Abstract:

A head-worn image display apparatus that comprises a non-immersive image display assembly that receives images from a stereoscopic video camera module. The image display assembly comprises a miniature display component for generating the images for display. The image display assembly may work by an optical relay system. The head-worn image display apparatus could be used in a variety of different settings. One particular application is for performing medical procedures such as microsurgery. The stereoscopic video camera module may have optical magnification capability (e.g. such as in a surgical microscope) to provide a magnified view of the surgical field.

US Patent:

20190004539, Jan 3, 2019

Filed:

Aug 22, 2018

Appl. No.:

16/109592

Inventors:

Steven Sounyoung Yu - Fairfax VA, US
Sounil Yu - Reston VA, US

International Classification:

G05D 1/02
G06Q 50/28
G06Q 10/08

Abstract:

An autonomous unmanned road vehicle and how it can be used to make deliveries. The unmanned vehicle is capable of operating autonomously on paved roadways. The vehicle has a control system for autonomous driving and a perception system for detecting objects in its surroundings. The vehicle also has one or more cargo compartments for carrying the delivery items. The vehicle may have a flashing light beacon to increase the conspicuousness of the vehicle. In consideration that the vehicle does not carry passengers, the size and/or motor power of the vehicle may be reduced as compared to conventional passenger vehicles.

US Patent:

20180239363, Aug 23, 2018

Filed:

Apr 21, 2018

Appl. No.:

15/959223

Inventors:

Steven Sounyoung Yu - Fairfax VA, US
Sounil Yu - Reston VA, US

International Classification:

G05D 1/02
G06Q 10/08
G06Q 50/28

Abstract:

An autonomous unmanned road vehicle and how it can be used to make deliveries. The unmanned vehicle is capable of operating autonomously on paved roadways. The vehicle has a control system for autonomous driving and a perception system for detecting objects in its surroundings. The vehicle also has one or more cargo compartments for carrying the delivery items. The vehicle may have a flashing light beacon to increase the conspicuousness of the vehicle. In consideration that the vehicle does not carry passengers, the size and/or motor power of the vehicle may be reduced as compared to conventional passenger vehicles.

US Patent:

20180224867, Aug 9, 2018

Filed:

Feb 24, 2018

Appl. No.:

15/904359

Inventors:

Steven Yu - Fairfax VA, US
Sounil Yu - Reston VA, US

International Classification:

G05D 1/02
G06Q 10/08
G06Q 50/28

Abstract:

An autonomous unmanned road vehicle and how it can be used to make deliveries. The unmanned vehicle is capable of operating autonomously on paved roadways. The vehicle has a control system for autonomous driving and a perception system for detecting objects in its surroundings. The vehicle also has one or more cargo compartments for carrying the delivery items. The vehicle may have a flashing light beacon to increase the conspicuousness of the vehicle. In consideration that the vehicle does not carry passengers, the size and/or motor power of the vehicle may be reduced as compared to conventional passenger vehicles.