Hyogo, Japan

Yuichi Nakashima

This inventor holds 5 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1991-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuichi Nakashima. Retrieved from https://idiyas.com/inventor/yuichi-nakashima-wsllmqie

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 = 3.8

ph-index = 3

Forward Citations = 108(Granted Patents)


Company Filing History:


Years Active: 1991-1993

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5 patents (USPTO):Explore Patents

Title: Yuichi Nakashima: Innovator in Semiconductor Technology

Introduction

Yuichi Nakashima is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 5 patents. His work focuses on advancements in memory devices and testing methodologies.

Latest Patents

One of Nakashima's latest patents is a manufacturing method of an electrically programmable non-volatile memory. This invention describes a 1-transistor type flash EEPROM, where the memory cell includes a control gate formed on a silicon substrate with an insulating layer in between. A floating gate extends over the control electrode, allowing for efficient data storage through the application of high-level voltage. This design results in uniform characteristics among memory cells and a reduced cell area, enhancing miniaturization.

Another notable patent is for a resin sealed semiconductor device used in testing and evaluation. This device features two MOS field effect transistors, one located within 100 µm from the outer perimeter of the silicon substrate and the other positioned further away. Both transistors are encapsulated in resin, enabling the evaluation of mechanical stress effects on their electric characteristics.

Career Highlights

Yuichi Nakashima is associated with Mitsubishi Denki Kabushiki Kaisha, a leading company in the electronics sector. His innovative work has contributed to the advancement of semiconductor technologies, particularly in memory devices.

Collaborations

Nakashima has collaborated with notable coworkers, including Hideaki Arima and Yoshinori Okumura. Their combined expertise has furthered the development of cutting-edge technologies in their field.

Conclusion

Yuichi Nakashima's contributions to semiconductor technology through his patents and collaborations highlight his role as an influential inventor. 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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