Suwon, South Korea

Sanghoon Lee

This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignee: Hewlett-Packard Development Company, L.p.. Active years: 2022-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sanghoon Lee. Retrieved from https://idiyas.com/inventor/sanghoon-lee-ferbzwrn

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

USPTO Granted Patents = 3 

% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2022-2025

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3 patents (USPTO):Explore Patents

Title: Innovations of Sanghoon Lee

Introduction

Sanghoon Lee is a notable inventor based in Suwon, South Korea. He has made significant contributions to the field of toner cartridge technology. With a total of 3 patents, his work has been instrumental in enhancing the efficiency and functionality of printing systems.

Latest Patents

Sanghoon Lee's latest patents include innovative designs that improve the performance of process cartridges. One of his patents is for a process cartridge with a toner receiving unit along the pivot axis of the development unit. This design features a photosensitive unit that includes a photosensitive drum and a development unit. The development unit comprises a developing roller, a toner chamber, and a toner receiving unit that extends from the toner chamber to form a toner supply path. This configuration allows the development unit to pivot in a direction that optimizes the interaction between the developing roller and the photosensitive drum.

Another significant patent is for a toner refill cartridge with a spiral portion to move a plunger. This design includes a body that accommodates toner and features a toner discharge port. The cartridge has a first member that is rotatably supported by the body and includes a spiral portion. A second member located inside the first member has a guide groove, and a plunger with a guide protrusion engages the spiral portion to push toner toward the discharge port as the first member rotates.

Career Highlights

Sanghoon Lee is currently employed at Hewlett-Packard Development Company, L.P. His work at this esteemed organization has allowed him to focus on developing advanced printing technologies. His innovative designs have contributed to the efficiency and reliability of toner cartridges used in various printing applications.

Collaborations

Sanghoon Lee has collaborated with talented coworkers, including Junhui Kim and Donguk Kim. Their combined expertise has fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Sanghoon Lee's contributions to the field of toner cartridge technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of the mechanics involved in printing systems, and his work continues to influence the industry positively.

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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