Tokyo, Japan

Nachio Seko

This inventor holds 7 USPTO granted patents. Top assignee: Ricoh Company, Ltd.. Active years: 1976-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nachio Seko. Retrieved from https://idiyas.com/inventor/nachio-seko

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 = 4.2

ph-index = 7

Forward Citations = 309(Granted Patents)


Location History:

  • Sagamihara, JA (1976)
  • Sagamihara, JP (1981)
  • Tokyo, JP (1979 - 1986)
  • Kanagawa, JP (1987)

Company Filing History:


Years Active: 1976-1987

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7 patents (USPTO):Explore Patents

Title: Innovations by Nachio Seko

Introduction

Nachio Seko is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of electrophotography, holding a total of 7 patents. His work has greatly influenced the efficiency and functionality of copying machines.

Latest Patents

One of his latest patents is a cleaning method for use in electrophotography. This method involves a cleaning blade that removes toner images remaining on the surface of a photoconductor. The process includes bringing the cleaning blade into pressure contact with the photoconductor before the movement of the photoconductor begins. After the copying process is completed, the cleaning blade is moved away from the surface of the photoconductor. Another notable patent is for a copying apparatus that connects multiple copying machines to a computer. This system includes sensors that monitor various operating parameters, such as the total number of copies produced and machine malfunctions. The computer processes this data and provides feedback to the copying machines for corrections when malfunctions occur.

Career Highlights

Nachio Seko is currently employed at Ricoh Company, Ltd., where he continues to innovate in the field of electrophotography. His work has been instrumental in enhancing the performance and reliability of copying machines.

Collaborations

He has collaborated with notable coworkers, including Tatsuo Tani and Hiroyuki Idenawa, contributing to various projects that have advanced the technology in their field.

Conclusion

Nachio Seko's contributions to electrophotography through his patents and collaborations have made a lasting impact on the industry. His innovative methods and systems continue to shape the future of copying technology.

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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