Hyogo, Japan

Eiji Hamasuna

This inventor holds 2 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 2001-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiji Hamasuna. Retrieved from https://idiyas.com/inventor/eiji-hamasuna

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 = 4.0

ph-index = 2

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 2001-2003

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2 patents (USPTO):Explore Patents

Title: Eiji Hamasuna: Innovator in Semiconductor Technology

Introduction

Eiji Hamasuna is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work focuses on enhancing the performance and efficiency of semiconductor devices.

Latest Patents

Hamasuna's latest patents include a semiconductor device and a static semiconductor memory device. The semiconductor device features a driver transistor with a gate electrode formed on the surface of a p well of a silicon substrate. A silicon oxide film and a silicon nitride film cover the driver transistor, while an interlayer insulator film is formed on the silicon nitride film. A contact hole is arranged to planarly overlap with at least the gate electrode, resulting in a semiconductor device capable of performing desired operations while reducing memory cell area. The static semiconductor memory device incorporates a shared contact on the side of a drain active region of each of two load transistors, ensuring stabilized low voltage operation in a full CMOS type SRAM memory cell.

Career Highlights

Eiji Hamasuna is associated with Mitsubishi Electric Corporation, where he continues to innovate in semiconductor technology. His work has been instrumental in advancing the capabilities of memory devices and semiconductor applications.

Collaborations

Hamasuna has collaborated with notable colleagues, including Motoi Ashida and Yoshikazu Kamitani. Their combined expertise has contributed to the development of cutting-edge semiconductor technologies.

Conclusion

Eiji Hamasuna's contributions to semiconductor technology through his patents and collaborations highlight his role as an influential inventor in the field. His work continues to impact 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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