Uji, Japan

Chikafumi Tanaka

This inventor holds 2 USPTO granted patents. Top assignee: Unitika Ltd.. Active years: 1991-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chikafumi Tanaka. Retrieved from https://idiyas.com/inventor/chikafumi-tanaka

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 = 3.0

ph-index = 2

Forward Citations = 21(Granted Patents)


Location History:

  • Kyoto, JP (1991)
  • Uji, JP (2001)

Company Filing History:


Years Active: 1991-2001

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2 patents (USPTO):Explore Patents

Title: Chikafumi Tanaka: Innovator in Metal Compound Production and Polarizing Films

Introduction

Chikafumi Tanaka is a notable inventor based in Uji, Japan. He has made significant contributions to the field of materials science, particularly in the production of ultrafine metal compound particles and polarizing films. With a total of 2 patents, his work has garnered attention for its innovative approaches and practical applications.

Latest Patents

Tanaka's latest patents include a method and apparatus for producing ultrafine metal compound particles. This invention involves an electrolytic bath that is partitioned into chambers by at least one ion exchange layer. The process allows for the transfer of metal ions from the anodic side chamber to the cathodic side chamber, resulting in the precipitation of ultrafine metal compound particles in an alkaline electrolytic solution. Another significant patent is for a polarizing film that comprises a uniaxially stretched film containing polyvinyl alcohol and a polarizing agent. This film exhibits superior heat resistance and excellent optical properties, making it a valuable advancement over conventional films.

Career Highlights

Chikafumi Tanaka is associated with Unitika Ltd., a company known for its innovative materials and technologies. His work at Unitika has allowed him to explore and develop cutting-edge solutions in the field of materials science.

Collaborations

Tanaka has collaborated with notable coworkers such as Masami Shiozawa and Minoru Nishinohara. Their combined expertise has contributed to the successful development of innovative products and technologies.

Conclusion

Chikafumi Tanaka's contributions to the fields of ultrafine metal compound production and polarizing films highlight his role as a leading inventor. His patents reflect a commitment to innovation and excellence in materials 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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