Tokyo, Japan

Tadashi Nakajima

This inventor holds 10 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignees: Bridgestone Corporation, Samsung Heavy Industries Co., Ltd.. Active years: 1990-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadashi Nakajima. Retrieved from https://idiyas.com/inventor/tadashi-nakajima

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

USPTO Granted Patents = 10 

% Patents Active = 90.0

 

Average Co-Inventor Count = 4.2

ph-index = 5

Forward Citations = 48(Granted Patents)


Location History:

  • Tokyo, JP (1990 - 2004)
  • Setagaya-ku, JP (2017)

Company Filing History:


Years Active: 1990-2017

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10 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Tadashi Nakajima

Introduction

Tadashi Nakajima is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of conductive materials and image formation technologies. With a total of 10 patents to his name, Nakajima's work has had a considerable impact on various industries.

Latest Patents

Among his latest patents, Nakajima has developed a conductive polymer material that enhances resistance stability during continuous conduction, thereby achieving a longer operating life. This innovative material incorporates a quaternary ammonium base as an electrolyte cation and an alkyl sulfate radical as an electrolyte anion. Additionally, he has created an ethylene propylene rubber foam that is suitable for use in image formation equipment. This foam exhibits less compression set and is designed to electrify an image formation body through direct charge injection, enabling low-voltage operation while minimizing ozone generation and image defects.

Career Highlights

Throughout his career, Nakajima has worked with notable companies such as Bridgestone Corporation and Samsung Heavy Industries. His experience in these organizations has allowed him to refine his expertise in material science and engineering.

Collaborations

Some of Nakajima's notable coworkers include Takahiro Kawagoe and Junji Sakata. Their collaborative efforts have contributed to the advancement of technologies in their respective fields.

Conclusion

Tadashi Nakajima's innovative work in conductive materials and image formation technologies showcases his significant contributions to the industry. His patents reflect a commitment to enhancing performance and efficiency in various applications.

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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