Suwa, Japan

Shunichi Iijima

This inventor holds 2 USPTO granted patents. Top assignee: Seiko Epson Corporation. Active years: 1992-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shunichi Iijima. Retrieved from https://idiyas.com/inventor/shunichi-iijima

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 2

Forward Citations = 12(Granted Patents)


Company Filing History:


Years Active: 1992-1993

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2 patents (USPTO):Explore Patents

Title: Shunichi Iijima: Innovator in Switch Substrate Technology

Introduction

Shunichi Iijima is a prominent inventor based in Suwa, Japan. He is known for his contributions to the field of switch substrate technology. With a total of 2 patents, Iijima has made significant advancements that enhance the functionality and efficiency of switching devices.

Latest Patents

Iijima's latest patents focus on the method of manufacturing a switch substrate. The first patent describes a switch substrate for a switching device that includes an electrical contact brush. This substrate is formed with alternating conductive and insulating portions on its surface, featuring a groove that eliminates insulating abrasion powder from the contact brush. The design ensures that the top of the conducting portions is higher than the bottom of the groove, which can be positioned above or below the insulating portions. The manufacturing process involves creating a conductive layer with projections that are compressed when engaged with a mold. Once removed from the mold, the projections extend to their actual height.

The second patent reiterates the same innovative approach to switch substrate design and manufacturing. It emphasizes the importance of the groove in maintaining the integrity of the electrical contact brush while ensuring optimal performance in switching devices.

Career Highlights

Shunichi Iijima is associated with Seiko Epson Corporation, where he has contributed to various projects related to electronic components and devices. His work has been instrumental in advancing the technology used in modern switching devices.

Collaborations

Iijima has collaborated with Masanori Takemura, a fellow innovator, to further enhance the development of switch substrate technology. Their combined expertise has led to significant improvements in the efficiency and reliability of switching devices.

Conclusion

Shunichi Iijima's innovative work in switch substrate technology has paved the way for advancements in electronic devices. His patents reflect a deep understanding of the challenges faced in the industry and offer practical solutions that enhance device performance.

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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