Fuji, Japan

Hatsuhiko Harashina

This inventor holds 20 USPTO granted patents and 1 published patent application and 3 EPO patents, primarily in Polyacetal Resin Technology. Top assignees: Polyplastics Co., Ltd., Other. Active years: 2003-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hatsuhiko Harashina. Retrieved from https://idiyas.com/inventor/hatsuhiko-harashina

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 20 

% Patents Active = 55.0

 

Average Co-Inventor Count = 1.9

ph-index = 8

Forward Citations = 214(Granted Patents)


Location History:

  • Fuji, JP (2003 - 2011)
  • Shizuoka, JP (2021 - 2023)

Company Filing History:


Years Active: 2003-2025

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Areas of Expertise:
Polyacetal Resin
Flame-Retardant Composition
Production Method
Resin Composition
Automobile Component
Molded Article
Stable Resin
Decomposer
20 patents (USPTO):Explore Patents

Title: **Hatsuhiko Harashina: Innovator in Polyacetal Resin Technology**

Introduction

Hatsuhiko Harashina is a prominent inventor based in Fuji, Japan, known for his significant contributions to the field of materials science, particularly in polyacetal resin technology. With an impressive portfolio of 19 patents, Harashina has established himself as a key figure in the development of innovative methods that enhance the performance and safety of polymer materials.

Latest Patents

Among his latest inventions, Harashina has developed a production method for polyacetal resin composition, which aims to minimize formaldehyde emissions from molded articles. This innovative method allows for the stable suppression of mold deposits during the molding process. The composition includes essential components such as a polyacetal polymer, aliphatic carboxylic acid hydrazide, hydantoin compounds, and alkaline earth metal salts of carboxylic acids, all meticulously measured to ensure optimal performance.

Career Highlights

Throughout his career, Harashina has been affiliated with leading companies in the industry, including Polyplastics Co., Ltd. His work has not only advanced the field of polymer technology but also contributed to environmental sustainability by focusing on reducing harmful emissions from plastic products.

Collaborations

Harashina has collaborated with talented coworkers such as Shinya Yamada and Hayato Kurita, contributing to a dynamic research environment that fosters innovation and excellence. These collaborations have played a significant role in the successful development of his patents and innovations.

Conclusion

Hatsuhiko Harashina's dedication to innovation in polyacetal resin technology and his commitment to improving material safety and performance position him as a leading inventor in his field. His patents reflect a profound understanding of polymer science and illustrate his ongoing contributions to the advancement of sustainable manufacturing practices.

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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