Etobicoke, Canada

Shigang S Qiu

This inventor holds 61 USPTO granted patents and 11 published patent applications, plus 19 CIPO patents and 11 EPO patents, primarily in Polyester Emulsification (CPC class G03G). Top assignee: Xerox Corporation. Active years: 2008-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigang S Qiu. Retrieved from https://idiyas.com/inventor/shigang-s-qiu

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 61 

% Patents Active = 91.8


 

Average Co-Inventor Count = 5.1

ph-index = 6

Forward Citations = 152(Granted Patents)

Forward Citations (Not Self Cited) = 125(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Etobicoke, CA (2010 - 2017)
  • Toronto, CA (2008 - 2018)

Company Filing History:


Years Active: 2008-2018

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Areas of Expertise:
Polyester Emulsions
Toner Formulations
Solvent-Free Processes
Phase Inversion
Colorant Dispersions
Robust Resin
Crystalline Latex
Bio-Based Stabilizers
Acoustic Mixing
Sustainable Toner
Dual Dispersions
Resin Production
61 patents (USPTO):Explore Patents

Title: Shigang S Qiu: Innovator in Emulsification Processes and Toner Technology

Introduction

Shigang S Qiu is an accomplished inventor based in Etobicoke, Canada, with a remarkable portfolio of 61 patents. His work primarily centers around advancements in emulsification processes and toner formulations, contributing significantly to the field of materials science and engineering.

Latest Patents

Among his latest innovations are two notable patents:

1. **Solvent Free Emulsification Processes** - This invention relates to the preparation of an emulsion that combines a water phase with a resin-containing phase. The emulsion emerges from a mixture incorporating water, a surfactant, a resin with an acidic moiety, and an organic compound featuring at least two distinct moieties. These moieties can neutralize the acidic region of the resin or form hydrogen bonds, enhancing the emulsion's stability and performance.

2. **Toner Comprising Colorant Wax Dispersion** - This patent details a toner formulation that includes a resin and colorant wax particles. The particles possess a size distribution ranging from approximately 150 nanometers to less than 300 nanometers. The colorant wax is produced through a meticulous process involving melting and combining a dry colorant with wax, followed by milling and dispersing the mixture to create uniform colorant wax particles, ensuring optimal performance in printing applications.

Career Highlights

Shigang has had a noteworthy career, spending significant time at reputable organizations such as Xerox Corporation. His work in these esteemed companies showcases his ability to innovate and contribute to large-scale technological advancements in the field of printing and materials.

Collaborations

Throughout his career, Shigang has collaborated with talented individuals, including Santiago Faucher and Chieh-Min Cheng. These partnerships have enabled the cross-pollination of ideas, facilitating the development of cutting-edge technologies.

Conclusion

Shigang S Qiu's contributions to emulsification processes and toner technology stand as a testament to his ingenuity and dedication to innovation. With numerous patents to his name, he continues to influence the landscape of materials science, paving the way for future advancements in the industry.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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