Yamaguchi, Japan

Toshitaka Fujii

This inventor holds 4 USPTO granted patents and 2 EPO patents. Top assignees: Nippon Oil Corporation, Nippon Petroleum Refining Company, Limited, Jx Nippon Oil Energy Corporation. Active years: 2011-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshitaka Fujii. Retrieved from https://idiyas.com/inventor/toshitaka-fujii-oplw04es

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 = 8.3

ph-index = 2

Forward Citations = 10(Granted Patents)


Location History:

  • Yamaguchi, JP (2011 - 2012)
  • Kuga-gun, JP (2012)
  • Tokyo, JP (2017)

Company Filing History:


Years Active: 2011-2017

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4 patents (USPTO):Explore Patents

Title: Toshitaka Fujii: Innovator in Petroleum Coke Production

Introduction

Toshitaka Fujii is a notable inventor based in Yamaguchi, Japan. He has made significant contributions to the field of petroleum coke production, holding a total of four patents. His work focuses on improving the properties and production methods of petroleum coke, which is essential in various industrial applications.

Latest Patents

Fujii's latest patents include a method for producing petroleum coke with a sufficiently small coefficient of thermal expansion (CTE) and reduced puffing phenomenon. This method involves coking feedstock oil that consists of light oil with a distillation endpoint of 380°C or less and heavy oil with an initial boiling point of 200°C or more. The feedstock must also contain a high percentage of aromatic components while maintaining low sulfur and nitrogen content. Another significant patent involves raw coke for electricity storage carbon material and needle coke. This invention provides a raw coke structure that, when graphitized at 2800°C under an inactive gas atmosphere, results in a product with specific crystallite size ratios, enhancing its effectiveness as an active carbon material.

Career Highlights

Fujii has worked with prominent companies in the petroleum industry, including Nippon Oil Corporation and Nippon Petroleum Refining Company, Limited. His experience in these organizations has contributed to his expertise in the field and the development of his innovative patents.

Collaborations

Throughout his career, Fujii has collaborated with notable colleagues such as Takashi Oyama and Kazuhisa Nakanishi. These partnerships have likely facilitated the exchange of ideas and advancements in their respective fields.

Conclusion

Toshitaka Fujii's contributions to petroleum coke production through his innovative patents highlight his role as a significant inventor in the industry. His work continues to influence the development of materials used in various applications, showcasing the importance of innovation in advancing technology.

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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