Hitachi, Japan

Yoshiyuki Mukoyama

This inventor holds 25 USPTO granted patents, primarily in Polyamide-Imide Resins. Top assignee: Hitachi Chemical Company, Ltd.. Active years: 1978-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiyuki Mukoyama. Retrieved from https://idiyas.com/inventor/yoshiyuki-mukoyama

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 = 3.4

ph-index = 7

Forward Citations = 143(Granted Patents)


Location History:

  • Hitachi, JA (1978)
  • Hitachi, JP (1981 - 1992)
  • Chiba, JP (1997 - 1999)

Company Filing History:


Years Active: 1978-1999

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Areas of Expertise:
Polyamide-Imide Resin
Heat-Resistant Resin
Integrated Circuit Device
Epoxy-Modified Resin
Diisocyanates
Electrical Laminate
Solvent-Soluble Polyimide
Granular Polymer
Liquid Chromatographic Column
Expandable Styrene Resin
Column Packing Material
Polymer Composition
25 patents (USPTO):Explore Patents

Title: Yoshiyuki Mukoyama: Innovator in Epoxy-Modified Polyamide Resins

Introduction

Yoshiyuki Mukoyama, based in Hitachi, Japan, is a notable inventor who has made significant contributions to the field of polymer chemistry. With a remarkable portfolio of 25 patents, he has focused on innovations related to epoxy-modified polyamide resins. His work has applications in various industries, showcasing the potential of his inventions in the development of high-performance materials.

Latest Patents

Among Mukoyama's latest inventions is an epoxy-modified polyamide resin, achieved by reacting a diisocyanate with either a dicarboxylic acid or a tricarboxylic acid anhydride in a nitrogen-containing aprotic solvent. This innovative approach results in a polyamide resin intermediate that, when further reacted with an epoxy resin, yields a high molecular weight epoxy-modified polyamide. The final product is known for its excellent heat resistance and flexibility, making it suitable for use as a coating material or adhesive.

Another significant patent involves an amide group-containing epoxy resin, which is produced by reacting an epoxy resin with an amide group-containing diisocyanate. This diisocyanate is formed through the reaction of a diisocyanate with a dicarboxylic acid. The result is a uniform cured product that exhibits high adhesiveness, positioning it as a versatile option for various applications, including adhesives and coating compositions.

Career Highlights

Yoshiyuki Mukoyama has spent a considerable part of his career at Hitachi Chemical Company, Ltd. His work exemplifies the intersection of innovation and practical application in polymer technology. His contributions have not only advanced the understanding of epoxy-modified systems but also opened new avenues for industrial use.

Collaborations

Throughout his career, Mukoyama has collaborated with esteemed colleagues such as Hiroshi Nishizawa and Kenji Suzuki. These collaborations have played a pivotal role in the successful development and commercialization of his innovations, reflecting the importance of teamwork in technological advancement.

Conclusion

Yoshiyuki Mukoyama stands out as a key figure in the field of epoxy-modified polyamide resins, with a rich history of patents that underscore his inventive spirit. His ongoing research and development work continue to impact various industries, paving the way for future innovations in material science.

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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