Pleasanton, CA, United States of America

Chang Han

USPTO Granted Patents = 5 

Average Co-Inventor Count = 1.3

ph-index = 2

Forward Citations = 44(Granted Patents)


Company Filing History:


Years Active: 2013-2015

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5 patents (USPTO):Explore Patents

Title: Chang Han - Innovator in LED Technology

Introduction

Chang Han is a prominent inventor based in Pleasanton, CA (US). He has made significant contributions to the field of LED technology, holding a total of 5 patents. His innovative designs focus on improving LED efficiency and fabrication methods.

Latest Patents

One of his latest patents is titled "Reflective pockets in LED mounting." This invention presents an LED device with improved efficiency by positioning an LED die within a pocket formed by a substrate and a supporting layer. The increase in efficiency is achieved by incorporating a reflective surface within the pocket, which can be created using a reflective layer of foil, film, or a polished coating. Another notable patent is "Flip light emitting diode chip and method of fabricating the same." This method involves depositing conductive materials to create contact pads and a passivation layer, ultimately forming bonding pads for light-emitting diodes.

Career Highlights

Throughout his career, Chang Han has worked with several companies, including Cofan USA, Inc. and Starlite LED Inc. His experience in these organizations has contributed to his expertise in LED technology and innovation.

Collaborations

Chang has collaborated with talented individuals such as Lac Nguyen and Pao Chen, further enhancing his work in the field.

Conclusion

Chang Han is a dedicated inventor whose work in LED technology has led to several patents that improve efficiency and fabrication methods. His contributions continue to influence the industry and inspire future innovations.

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