Osaka, Japan

Shigeaki Funaki

This inventor holds 1 USPTO granted patent. Top assignees: Mikasa Shoji Co., Ltd., Nec Electronics Corporation. Active years: 2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeaki Funaki. Retrieved from https://idiyas.com/inventor/shigeaki-funaki

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


% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 2009

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1 patent (USPTO):Explore Patents

Title: Shigeaki Funaki: Innovator in Copy Protection Technology

Introduction: Shigeaki Funaki, an inventor based in Osaka, Japan, has made significant contributions to the field of programmable gate arrays (FPGAs). With a focus on enhancing the security of digital technologies, he developed a patent that addresses the vital issue of unauthorized copying of FPGA programs.

Latest Patents: Funaki holds a notable patent titled "Copy protection method and system for programmable gate array." This invention provides a robust copy protection method for field-programmable gate arrays, incorporating a user-specific gate array that boots user circuit data. This data is stored in a memory device, ensuring security against unauthorized duplication. The patent revolutionizes how FPGA programs are protected, establishing a baseline for future innovations in the field.

Career Highlights: Throughout his career, Funaki has been affiliated with esteemed companies such as NEC Electronics Corporation and Mikasa Shoji Co., Ltd. These positions have allowed him to gain invaluable experience and refine his expertise in electronic design and security systems.

Collaborations: Funaki has worked alongside notable coworkers, including Masahiro Tonami and Kozaburo Nakamura. Their collective efforts have contributed to advancements in electronic technologies, paving the way for innovative solutions in the industry.

Conclusion: Shigeaki Funaki stands out as an inventor who has successfully tackled the critical issue of digital security in programmable gate arrays. With his patent for copy protection methods, he has laid a foundation for further advancements in FPGA technology, enhancing the integrity and reliability of digital assets. His contributions not only reflect his ingenuity but also symbolize the ongoing evolution of innovation in the electronics sector.

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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