Hitachi, Japan

Yuzaburo Iwasa

This inventor holds 3 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1979-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuzaburo Iwasa. Retrieved from https://idiyas.com/inventor/yuzaburo-iwasa

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 = 3.8

ph-index = 3

Forward Citations = 28(Granted Patents)


Location History:

  • Hitachi, JP (1979 - 1985)
  • Toukai, JP (1987)

Company Filing History:


Years Active: 1979-1987

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3 patents (USPTO):Explore Patents

Title: Yuzaburo Iwasa: Innovator in Relay Ladder Sequence Circuitry

Introduction

Yuzaburo Iwasa is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of electronics, particularly in the development of relay ladder sequence circuitry. With a total of three patents to his name, Iwasa's work has advanced the efficiency and speed of data processing systems.

Latest Patents

Iwasa's latest patents include innovative methods and apparatuses that enhance the functionality of electronic systems. One of his patents, titled "Bit processing utilizing a row and column ladder sequence," describes a relay ladder sequence circuitry that processes bit information in a parallel manner. This design allows for high processing speeds by utilizing a structured program that is memorized and read out as needed. Another significant patent is the "Method and apparatus for self-control in distributed priority collision." This invention addresses the challenges of collision control in systems where multiple devices share a common unit. It measures the non-access time of devices and permits access based on preset conditions, thereby optimizing system performance.

Career Highlights

Yuzaburo Iwasa is currently employed at Hitachi, Ltd., where he continues to innovate and contribute to the field of electronics. His work has been instrumental in developing technologies that improve the efficiency of electronic systems. Iwasa's expertise in relay ladder sequence circuitry has positioned him as a key figure in his field.

Collaborations

Throughout his career, Iwasa has collaborated with notable colleagues, including Hiromasa Yamaoka and Kazuhisa Matunaga. These collaborations have fostered an environment of innovation and have led to the development of groundbreaking technologies.

Conclusion

Yuzaburo Iwasa's contributions to the field of electronics through his patents and work at Hitachi, Ltd. highlight his role as an influential inventor. His innovative approaches to relay ladder sequence circuitry and collision control continue 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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