Steven Yong Yu

US Patent:

6572743, Jun 3, 2003

Filed:

Aug 23, 2001

Appl. No.:

09/935456

Inventors:

Michael N. Miller - Austin TX
Steven Y. Yu - Austin TX
David J. Lentz - Leander TX

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C25D 1708

US Classification:

20429706, 204232, 204242, 20429701, 2042971, 20429714

Abstract:

An electrode assembly for electroplating conducting portions of nonconductors comprises an insulating frame having a first projection opposite a second projection. Preferably the insulating frame comprises a resin selected from the group consisting of acrylic resins, polyvinyl chloride resins and polycarbonate resins. A metal filament, for connection to the negative pole of a source of electrical energy, extends from the first projection to the second projection. Adjacent to the metal filament a first conductive plate is attached to the insulating frame at a first distance from the metal filament. A second conductive plate attaches to the insulating frame at a second distance from the metal filament. The first plate and the second plate are adapted for connection to the positive pole of a source of electrical energy. The nonconductor is at least one optical fiber having a conducting portion in contact with the metal filament to provide connection of the conducting portion to a negative pole of the source of electrical energy.

US Patent:

7477060, Jan 13, 2009

Filed:

Dec 27, 2005

Appl. No.:

11/318709

Inventors:

Steven Y. Yu - Austin TX, US
Michael R. Matthews - Austin TX, US
Gary A. Shreve - Austin TX, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G01R 27/08
G06F 19/00

US Classification:

324693, 702 34, 702 35, 324700

Abstract:

A detection system for monitoring an engineered structure includes an array of sensors disposable in a predetermined pattern on the engineered structure and disposable between a surface of the engineered structure and a protective coating substantially covering the surface. The detection system also includes a data acquisition system in communication with the array of sensors for retrieving data from the sensors. The array of sensors can provide data corresponding to at least one of a degree of cure of the protective coating, a health of the cured protective coating, and a corrosion rate of the engineered structure at each of the sensors.

US Patent:

7504834, Mar 17, 2009

Filed:

Dec 20, 2006

Appl. No.:

11/613670

Inventors:

Ding Wang - Austin TX, US
Steven Y. Yu - Austin TX, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G01R 27/08

US Classification:

324693, 324649, 73587, 73803, 73862046, 205791

Abstract:

A detection system for monitoring an engineered structure includes an array of sensors disposable in a predetermined pattern on the engineered structure and disposable between a surface of the engineered structure and a protective coating substantially covering the surface. The detection system also includes a controller in communication with the array of sensors for retrieving data from the sensors. The controller communicates with the sensor array via an optical fiber backbone. The array of sensors can remotely provide data corresponding to at least one of a degree of cure of the protective coating, a health of the cured protective coating, and a corrosion rate of the engineered structure at each of the sensors.

US Patent:

7877009, Jan 25, 2011

Filed:

Dec 20, 2007

Appl. No.:

11/961763

Inventors:

Ding Wang - Austin TX, US
Steven Y. Yu - Austin TX, US
Gary A. Shreve - Austin TX, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

H04B 10/00

US Classification:

398 9, 398 10, 398 16, 398 20

Abstract:

A method and system of measuring the spectroscopic impedance of a sensor and its immediate surroundings. The sensor is disposed on an engineered structure and is coated with a protective coating. The method includes providing a first optical signal having a first modulation frequency and amplitude. The method also includes transmitting the first optical signal and a second optical signal from a first location to a sensor location. The method also includes modulating the second optical signal with a second modulation frequency and amplitude, the second modulation frequency and amplitude converted from the first optical signal. The method also includes comparing the first modulation frequency to the second modulation frequency to determine one of a phase difference and a time lag and calculating the electrochemical impedance spectroscopy of the sensor and its immediate surroundings as a function of frequency.

US Patent:

8564310, Oct 22, 2013

Filed:

Aug 18, 2009

Appl. No.:

12/542829

Inventors:

Steven Y. Yu - Austin TX, US
Justin A. Riddle - St. Paul MN, US
Naiyong Jing - Woodbury MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G01R 27/26

US Classification:

324658

Abstract:

Methods and devices for evaluating the quality of oils are disclosed. The methods and devices can provide an indication of the oil quality based on the Total Polar Content of the oil. The methods rely on a reusable capacitive sensing element that comprises a fluorinated barrier coating, as disclosed herein.

US Patent:

20050281509, Dec 22, 2005

Filed:

Jun 18, 2004

Appl. No.:

10/871406

Inventors:

Larry Cox - Austin TX, US
Harry Loder - Austin TX, US
Ching-Long Tsai - Austin TX, US
Steven Yu - Austin TX, US

International Classification:

G02B006/38

US Classification:

385059000, 385055000, 385056000, 385058000, 385060000, 385062000

Abstract:

A connector system includes an electrically conductive coupling assembly and a first optical connector assembly. The electrically conductive coupling assembly is configured for mounting in a through-opening in a panel. The first optical connector assembly is configured for engagement with the coupling assembly. The first optical connector assembly includes an electrically conductive connector body that is configured to substantially block a first interconnection opening of the coupling assembly when the first optical connector is engaged with the coupling assembly.

US Patent:

20060266731, Nov 30, 2006

Filed:

May 31, 2005

Appl. No.:

11/140804

Inventors:

Steven Yu - Austin TX, US
Pei-San Tseng - Austin TX, US
Nanayakkara Somasiri - Austin TX, US

International Classification:

H01B 13/00
B44C 1/22
C23F 1/00

US Classification:

216013000, 216083000

Abstract:

Method of removing iodine from a polymer using a thiosulfate solution.

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.