Niihama, Japan

Sadao Sekiguchi

This inventor holds 5 USPTO granted patents. Top assignees: Sumitomo Naugatuck Co., Ltd., Sumitomo Chemical Company, Limited. Active years: 1976-1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sadao Sekiguchi. Retrieved from https://idiyas.com/inventor/sadao-sekiguchi

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 = 5.2

ph-index = 4

Forward Citations = 43(Granted Patents)


Location History:

  • Ikeda, JA (1976)
  • Niihama, JA (1976 - 1977)
  • Minoo, JP (1978 - 1981)

Company Filing History:


Years Active: 1976-1981

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5 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Sadao Sekiguchi

Introduction

Sadao Sekiguchi is a notable inventor based in Niihama, Japan. He has made significant contributions to the field of color developing sheets for pressure-sensitive recording systems. With a total of five patents to his name, Sekiguchi's work has had a lasting impact on the industry.

Latest Patents

Sekiguchi's latest patents include a color developing sheet for pressure-sensitive recording systems. This invention features a color developer sheet that is sensitized in a color developing property upon contact with a chromogenic material. It is designed to improve the light-resistance of the developed color. The composition consists of a support sheet and a coating that includes an organic color developer and a latex binder. The latex is a copolymer created from a mixture of aliphatic conjugated diolefin monomers, unsaturated carboxylic acid monomers, and other olefin monomers. Another of his recent patents is a color developing sheet with an organic developer and latex binder, which shares similar characteristics and benefits.

Career Highlights

Throughout his career, Sadao Sekiguchi has worked with prominent companies such as Sumitomo Naugatuck Co., Ltd. and Sumitomo Chemical Company, Limited. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects.

Collaborations

Sekiguchi has collaborated with notable coworkers, including Saburo Mishiba and Nobujiro Izaki. Their combined expertise has fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Sadao Sekiguchi's contributions to the field of color developing sheets demonstrate his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving the quality and functionality of recording systems.

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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