Tokyo, Japan

Hajime Iwasaki

This inventor holds 2 USPTO granted patents. Top assignees: Mitsuboshi-Sangyo Co., Ltd., Mitsui Petrochemical Industries, Ltd.. Active years: 1978-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hajime Iwasaki. Retrieved from https://idiyas.com/inventor/hajime-iwasaki

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 = 2.9

ph-index = 2

Forward Citations = 27(Granted Patents)


Company Filing History:


Years Active: 1978-1980

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2 patents (USPTO):Explore Patents

Title: Hajime Iwasaki: Innovator in Asphalt Technology

Introduction

Hajime Iwasaki is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of asphalt technology, holding a total of 2 patents. His innovative approaches have led to advancements in water-proofing materials and asphalt-impregnated sheets.

Latest Patents

Iwasaki's latest patents include an asphalt water-proofing material and a bulky asphalt-impregnated sheet. The asphalt water-proofing material features a core impregnated with petroleum asphalt, made from a composite material that includes a non-woven fabric layer and a woven or knitted fabric layer. These layers are integrally connected through needle-punching, enhancing the material's durability. The bulky asphalt-impregnated sheet consists of a base material of non-woven fabric, uniformly saturated with asphalt on both sides, with each surface layer exhibiting different properties.

Career Highlights

Throughout his career, Hajime Iwasaki has worked with prominent companies such as Mitsuboshi-Sangyo Co., Ltd. and Mitsui Petrochemical Industries, Ltd. His experience in these organizations has allowed him to refine his expertise in asphalt technology and contribute to various innovative projects.

Collaborations

Iwasaki has collaborated with notable coworkers, including Kuninori Mizuta and Kyouzi Muraoka. Their combined efforts have fostered a creative environment that has led to the development of groundbreaking technologies in the asphalt industry.

Conclusion

Hajime Iwasaki's contributions to asphalt technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry positively, showcasing the importance of innovation 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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