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For the Inventor, By the Inventor

Monmouth Junction, NJ, United States of America

Eugene Chai

This inventor holds 29 USPTO granted patents and 1 published patent application and 1 EPO patent, primarily in Wireless Communication Networks. Top assignees: Nec Corporation, Nec C Orporation. Active years: 2016-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eugene Chai. Retrieved from https://idiyas.com/inventor/eugene-chai

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

USPTO Granted Patents = 29 

% Patents Active = 89.7


Average Co-Inventor Count = 4.0

ph-index = 5

Forward Citations = 82(Granted Patents)


Location History:

  • Princeton, NJ (US) (2016 - 2018)
  • Monmouth Jnctn, NJ (US) (2019)
  • Monmouth junstion, NJ (US) (2019 - 2020)
  • Monmouth Junction, NJ (US) (2018 - 2023)

Company Filing History:

goldMedal25 out of 36,718 
 
Nec Corporation
 patents
silverMedal4 out of 196 
 
Nec C Orporation
 patents

Years Active: 2016-2025

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Areas of Expertise:
LiDAR
mmWave
Neural Network
RFID
Unmanned Aerial Vehicles
Interference Cancellation
Long Term Evolution
Backscatter Navigation
Inventory System
Mobile Networks
Touch-Aware Input
Multiple Input Multiple Output
29 patents (USPTO):Explore Patents
1. 12487607 - Near real-time reconstruction using drones (2025-12-02),
2. 12339366 - LiDAR-driven mmWave beam management (2025-06-24),
3. 11651664 - Neural network classifier trained for purchasing differentiation (2023-05-16),
4. 11620880 - Self checkout system (2023-04-04),
5. 11620462 - Reading passive wireless tags using commodity devices (2023-04-04),
6. 11356172 - Unmanned aerial vehicle network (2022-06-07),
7. 11054843 - Self-configuring long term evolution radio access network on unmanned autonomous vehicles (2021-07-06),
8. 10936927 - Tagging objects in indoor spaces using ambient, distributed backscatter (2021-03-02),
9. 10852416 - In-store interaction and location system for interfacing users with products (2020-12-01),
10. 10852415 - Backscatter-aided navigation system (2020-12-01),
11. 10852414 - In-home inventory and location system (2020-12-01),
12. 10852413 - Tagging objects in indoor spaces using ambient, distributed backscatter (2020-12-01),
13. 10582529 - Speculative scheduling in mobile networks (2020-03-03),
14. 10574535 - Interference topology inference to enhance performance of LTE unlicensed networks (2020-02-25),
15. 10470243 - Implementing wireless communication networks using unmanned aerial vehicles (2019-11-05),

Title: **Innovations of Eugene Chai: A Pioneer in Self-Checkout Technology**

Introduction

Eugene Chai, based in Monmouth Junction, NJ, is an accomplished inventor renowned for his contributions to the field of automated retail technology. With an impressive portfolio of 27 patents, Eugene has made significant strides in enhancing the shopping experience through innovative self-checkout systems.

Latest Patents

Among his latest innovations, Eugene has developed a groundbreaking neural network classifier trained for purchasing differentiation. This system integrates multiple radio frequency identification (RFID) transceivers within a store to streamline self-checkout processes. The solution effectively identifies whether an RFID tag is inside or outside a designated area, ensuring that the number of incorrectly identified purchased items remains below a set threshold. This minimizes customer dissatisfaction by maintaining accuracy in billing. Another critical patent focuses on a similar self-checkout system that leverages RFID technology to decode responses from activated tags, calculating the total amount charged based on items identified within the checkout area.

Career Highlights

Eugene Chai currently works at NEC Corporation, where he continues to drive innovation in retail technology. Through his work, he has positioned himself as a leader in developing solutions that not only improve efficiency but also enhance customer satisfaction during the shopping experience.

Collaborations

Throughout his career, Eugene has collaborated with esteemed colleagues such as Sampath Rangarajan and Karthikeyan Sundaresan. Their combined expertise has been instrumental in advancing NEC Corporation's research and development initiatives in automated systems.

Conclusion

Eugene Chai’s contributions to the realm of self-checkout technology highlight his commitment to innovation and improvement in consumer retail experiences. With a remarkable collection of patents, he continues to influence the future of shopping, making it more convenient and accurate for customers.

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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