Saitama, Japan

Isao Nakajima

This inventor holds 2 USPTO granted patents. Top assignee: Tonen Corporation. Active years: 2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Isao Nakajima. Retrieved from https://idiyas.com/inventor/isao-nakajima-554qmg3r

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 = 2.4

ph-index = 2

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 2000

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2 patents (USPTO):Explore Patents

Title: Isao Nakajima: Innovator in Diesel Fuel Technology

Introduction

Isao Nakajima is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of diesel fuel technology, holding 2 patents that focus on improving diesel fuel compositions. His work is essential for enhancing fuel efficiency and reducing environmental impact.

Latest Patents

Nakajima's latest patents include innovative diesel fuel oil compositions. The first patent presents a diesel fuel oil composition that comprises a base fuel containing normal paraffin compounds with a carbon number of 20 or more at 4.0 wt % or less. This composition also features a specific carbon number distribution in high-boiling normal paraffin compounds, contains sulfur at 0.05 wt % or less, and incorporates 0.01 to 0.1 wt % of a fuel improver. The second patent mirrors these features but adds a lubricity improver at 0.002 to 0.1 wt %. These advancements are crucial for the development of cleaner and more efficient diesel fuels.

Career Highlights

Isao Nakajima is currently employed at Tonen Corporation, where he continues to innovate in the field of fuel technology. His expertise and dedication have positioned him as a key figure in the industry, contributing to advancements that benefit both consumers and the environment.

Collaborations

Throughout his career, Nakajima has collaborated with talented individuals such as Takashi Hino and Kazuyuki Murakami. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Isao Nakajima's contributions to diesel fuel technology through his patents and collaborations highlight his importance as an inventor. His work not only advances the field but also plays a vital role in promoting sustainable fuel solutions.

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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