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For the Inventor, By the Inventor

San Jose, CA, United States of America

Kwok-Fu Chiu

USPTO Granted Patents = 14

Average Co-Inventor Count = 1.6

ph-index = 5

Forward Citations = 130(Granted Patents)


Company Filing History:

goldMedal13 out of 4,791 
 
National Semiconductor Corporation
 patents
silverMedal1 out of 2 
 
National Semiconductor Corportaion
 patents

Years Active: 1995-2013

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14 patents (USPTO):Explore Patents
1. 8416547 - Short circuit protection with reduced offset voltage (2013-04-09),
2. 8339197 - Circuitry including matched transistor pairs (2012-12-25),
3. 7859233 - Apparatus and method for start-up for a synchronous switching regulator (2010-12-28),
4. 7791401 - Adjustment of op amp offset voltage temperature coefficient (2010-09-07),
5. 7564309 - Wide input common mode for input bias current cancellation (2009-07-21),
6. 7196589 - Apparatus and method for dual features of frequency setting and frequency synchronization in one pin (2007-03-27),
7. 7109688 - Apparatus and method for monotonic start up of a synchronous switching regulator (2006-09-19),
8. 7045992 - Apparatus and method for start-up for a synchronous switching regulator (2006-05-16),
9. 6496052 - Very low temperature coefficient for current limit in switching regulator and driver (2002-12-17),
10. 5892388 - Low power bias circuit using FET as a resistor (1999-04-06),
11. 5644264 - Output circuit with short circuit protection for a CMOS comparator (1997-07-01),
12. 5525934 - Output circuit with short circuit protection for a CMOS comparator (1996-06-11),
13. 5471175 - Input protection circuit for a CMOS comparator (1995-11-28),
14. 5471172 - 'AB Cascode' amplifier in an input stage of an amplifier or comparator (1995-11-28),

Title: The Innovations of Kwok-Fu Chiu

Introduction

Kwok-Fu Chiu is a prominent inventor based in San Jose, CA, known for his significant contributions to technology and engineering. With a total of 14 patents to his name, Chiu has made remarkable advancements in the field of electrical engineering, particularly in circuit protection and transistor technology.

Latest Patents

One of Chiu's latest patents focuses on short circuit protection with reduced offset voltage. This technology involves sensing a current based on an output current and generating a current sense signal in response. It further includes buffering the current sense signal and limiting the output current when it exceeds a threshold value. Another notable patent involves circuitry that includes matched transistor pairs. This patent discloses matched bipolar transistor pairs for use in differential transistor pair circuitry, current mirror transistor pair circuitry, and voltage reference transistor pair circuitry. Each transistor in the pair is designed with a base, emitter, and collector region, along with a doped polysilicon emitter contact and a metal emitter contact, ensuring efficient electrical connections.

Career Highlights

Chiu has worked with National Semiconductor Corporation, where he honed his skills and contributed to various innovative projects. His experience in this esteemed company has played a crucial role in shaping his career as an inventor.

Collaborations

Throughout his career, Chiu has collaborated with notable individuals such as Don Roy Sauer and Faruk Jose Nome Silva. These collaborations have further enriched his work and contributed to the development of his patented technologies.

Conclusion

Kwok-Fu Chiu's contributions to the field of electrical engineering through his patents and collaborations highlight his innovative spirit and dedication to advancing technology. His work continues to influence the industry and inspire future inventors.

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