Ichihara, Japan

Tadashi Hamanaka

This inventor holds 4 USPTO granted patents and 1 EPO patent. Top assignee: Showa Denko K.k.. Active years: 2002-2008.

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

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

Calculating rank

% Patents Active = 75.0


Average Co-Inventor Count = 3.0

ph-index = 2

Forward Citations = 19(Granted Patents)


Company Filing History:


Years Active: 2002-2008

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4 patents (USPTO):Explore Patents

Title: Innovations of Tadashi Hamanaka in Titanium Oxide Technology

Introduction

Tadashi Hamanaka is a notable inventor based in Ichihara, Japan. He has made significant contributions to the field of titanium oxide technology, holding a total of 4 patents. His work focuses on the development of aqueous titanium oxide-dispersed sols, which have various applications in materials science.

Latest Patents

Hamanaka's latest patents include innovative methods for creating particles, aqueous dispersions, and films of titanium oxide. One of his notable inventions involves an aqueous titanium oxide-dispersed sol that comprises titanium oxide particles dispersed in water. This sol contains chloride ions in an amount ranging from 50 to 10,000 ppm by weight as the chlorine element. The process involves hydrolyzing titanium tetrachloride to form the aqueous titanium oxide-dispersed sol while controlling the chloride ion concentration. Another patent details a sol comprising brookite-type titanium oxide particles with an average particle size of not more than 0.5 µm and a specific surface area of not less than 20 m²/g. The method includes adding titanium tetrachloride to hot water at temperatures between 75 to 100°C, followed by hydrolysis at 75°C to the boiling point of the mixture.

Career Highlights

Tadashi Hamanaka is currently employed at Showa Denko K.K., where he continues to innovate in the field of titanium oxide technology. His work has contributed to advancements in various applications, enhancing the performance and efficiency of materials.

Collaborations

Hamanaka has collaborated with notable coworkers, including Masahiro Ohmori and Hidenori Nakamura. Their combined expertise has fostered a productive environment for innovation and development in their projects.

Conclusion

Tadashi Hamanaka's contributions to titanium oxide technology through his patents and collaborations highlight his role as a significant inventor in this field. His innovative approaches continue to influence advancements 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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