Fujisawa, Japan

Minoru Nagai

This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignees: Hitachi Communication Technologies, Ltd., Hitachi, Ltd.. Active years: 2009-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Minoru Nagai. Retrieved from https://idiyas.com/inventor/minoru-nagai-3fm4owyd

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

USPTO Granted Patents = 4 

Average Co-Inventor Count = 2.6

ph-index = 3

Forward Citations = 60(Granted Patents)


Company Filing History:


Years Active: 2009-2014

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4 patents (USPTO):Explore Patents

Title: **Minoru Nagai: A Pioneer in Data Transmission Technology**

Introduction

Minoru Nagai, an accomplished inventor based in Fujisawa, Japan, has made significant contributions to the field of data transmission technology. With a portfolio of 4 patents, his work has paved the way for innovative solutions that enhance communication systems.

Latest Patents

Nagai's latest patents reflect his expertise and forward-thinking approach. His first notable invention is a **Data Transmission Device**, which includes a unique unit that alters the number and combination of optical communication paths to establish a virtual communication pathway. This device not only forms a virtual communication path by connecting only the necessary optical communication paths to meet required bandwidths, but it also features the capability to deactivate circuits associated with unconnected optical paths.

Another remarkable invention is the **Packet Forwarding Apparatus**, designed for efficiently handling extended Ethernet frames. This device includes a frame segmentation function that breaks down extended Ethernet frames, such as MAC-in-MAC frames, into multiple fragment frames when the frame's payload exceeds the Maximum Transmission Unit (MTU) size. It also comprises a frame assembling function, which reconstructs the original extended frame from a series of received fragments, ensuring seamless data flow within Ethernet networks.

Career Highlights

Minoru Nagai has had an impressive career, working with distinguished companies in the technology sector. He has held positions at Hitachi, Ltd. and Hitachi Communication Technologies, Ltd., where he honed his skills and contributed to groundbreaking projects in data communications and networking.

Collaborations

Throughout his career, Nagai collaborated with talented colleagues, including Hiroaki Miyata and Migaku Ota. These collaborations have allowed him to expand his innovative capabilities and enhance the quality of his inventions.

Conclusion

Minoru Nagai's work in data transmission technology exemplifies his commitment to innovation and excellence. With multiple patents under his belt, he continues to influence the industry and inspire future advancements in communication technology. His contributions demonstrate the profound impact that inventors like him have in shaping the future of connectivity.

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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