Otsu, Japan

Minoru Saitoh

This inventor holds 2 USPTO granted patents. Top assignee: Toyo Boseki Kabushiki Kaisha. Active years: 1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Minoru Saitoh. Retrieved from https://idiyas.com/inventor/minoru-saitoh-1y4b0nz9

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 = 5.1

ph-index = 2

Forward Citations = 11(Granted Patents)


Location History:

  • Otsu, JP (1985)
  • Shiga, JP (1985)

Company Filing History:


Years Active: 1985

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2 patents (USPTO):Explore Patents

Title: Minoru Saitoh: Innovator in Urethane Polymer Technologies

Introduction: Minoru Saitoh, an accomplished inventor based in Otsu, Japan, has made significant contributions to the field of urethane polymers. With a total of two patents to his name, Saitoh's work highlights advances in polymer chemistry that enhance the properties and applications of these materials.

Latest Patents: Saitoh's latest patents include innovations that focus on the development of urethane polymers containing a tertiary nitrogen atom. The patent details a tertiary nitrogen atom-containing urethane polymer which includes units that contribute significantly to its structural properties. The invention outlines that the content of the specific urethane unit must not be less than 10 milliequivalents of the tertiary nitrogen atom per kilogram of polymer, and the molecular weight must exceed 500. This invention addresses improvements in resistance to color change due to gas exposure, showcasing the functionality and efficiency of the polymers developed.

Another significant patent by Saitoh involves a polyurethane composition that exhibits improved dyeing properties. This composition combines a polyurethane with a tertiary nitrogen atom-containing polymer, effectively stabilizing the polyurethane. The polymer is produced as a reaction product between a tertiary nitrogen atom-containing diol and an excess of an organic diisocyanate, with its terminal isocyanate group blocked by a monoamine or dialkylhydrazine. This innovation not only enhances the properties of polyurethanes but also expands their potential applications in various industries.

Career Highlights: Minoru Saitoh is associated with Toyo Boseki Kabushiki Kaisha, a notable company in Japan known for its advancements in textile and polymer technologies. His work has contributed significantly to the company's reputation as a leader in innovation and manufacturing in the polymer sector.

Collaborations: Throughout his career, Saitoh has collaborated with esteemed colleagues such as Yoshikazu Arimatsu and Hideyuki Mitamura. These partnerships have fostered a creative environment, leading to the development of cutting-edge solutions in the field of urethane polymers and beyond.

Conclusion: Minoru Saitoh’s innovations in urethane polymer technology reflect his expertise and dedication to advancing material science. His patented work provides essential improvements in polymer properties, with substantial implications for various applications in industries worldwide. Saitoh continues to represent the intersection of creativity and science, showcasing the critical role inventors play in driving progress.

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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