Ibaraki, Japan

Tokuji Sugiyama

This inventor holds 5 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1988-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tokuji Sugiyama. Retrieved from https://idiyas.com/inventor/tokuji-sugiyama

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 = 4.6

ph-index = 4

Forward Citations = 53(Granted Patents)


Location History:

  • Ibaraki, JP (1988 - 1992)
  • Ibaraki-ken, JP (1997 - 2000)

Company Filing History:


Years Active: 1988-2000

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5 patents (USPTO):Explore Patents

Title: The Ingenious Inventor Tokuji Sugiyama

Introduction

Tokuji Sugiyama, an inventive mind hailing from Ibaraki-ken, Japan, has made significant contributions to the field of rolling mill technology. With a total of five patents to his name, Sugiyama's innovative spirit has been key to advancing manufacturing processes in the steel industry.

Latest Patents

Among his latest inventions, Sugiyama has developed several patents centered on the rolling mill and hot rolling systems. Notably, his work on a crossing type rolling mill incorporates a unique design wherein the axes of the work rolls can be inclined relative to the backup rolls. This innovative configuration allows for a cross-axis arrangement, greatly enhancing the rolling process's control over the material crown. Additionally, a sophisticated lubricant supply device is integrated, facilitating optimal operation by minimizing the thrust exerted on the work rolls. These advancements not only improve efficiency but also contribute to the longevity and performance of the rolling systems.

Career Highlights

Tokuji Sugiyama has played an important role at Hitachi, Ltd., a leading name in technology and engineering. His contributions have helped the company maintain its competitive edge in manufacturing, particularly in the field of rolling technologies. His dedication to innovation has made him a valuable asset in the research and development sector.

Collaborations

Throughout his career, Sugiyama has collaborated with esteemed colleagues such as Toshiyuki Kajiwara and Yoshio Takakura. Together, they have worked on refining manufacturing processes and pushing the boundaries of engineering in hot rolling systems. Their teamwork exemplifies the power of collaboration in attaining groundbreaking innovations.

Conclusion

In summation, Tokuji Sugiyama is a pivotal figure in the realm of rolling mill technology. His innovative patents and collaborative efforts have substantially advanced the steel manufacturing processes, making a lasting impact on the industry. As he continues to innovate, Sugiyama embodies the spirit of creativity and excellence that drives technological progress forward.

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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