Yokkaichi, Japan

Masanori Tomonari

This inventor holds 9 USPTO granted patents and 1 published patent application, plus 1 CIPO patent and 1 EPO patent. Top assignee: Ishihara Sangyo Kaisha, Ltd.. Active years: 1998-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masanori Tomonari. Retrieved from https://idiyas.com/inventor/masanori-tomonari

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

USPTO Granted Patents = 9 

% Patents Active = 55.6

 

 

Average Co-Inventor Count = 1.8

ph-index = 2

Forward Citations = 30(Granted Patents)


Location History:

  • Kusatsu, JP (1998)
  • Yokkaichi, JP (2004 - 2018)
  • Osaka, JP (2023)

Company Filing History:


Years Active: 1998-2025

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9 patents (USPTO):Explore Patents

Title: The Innovations of Masanori Tomonari

Introduction

Masanori Tomonari is a prominent inventor based in Yokkaichi, Japan. He has made significant contributions to the field of materials science, particularly in the development of titanium oxide particles. With a total of 9 patents to his name, Tomonari's work has advanced the understanding and application of titanium dioxide in various industries.

Latest Patents

One of Tomonari's latest patents is focused on the manufacturing method for titanium oxide particles. This invention aims to produce titanium oxide particles with a minimal degree of aggregation, ensuring they do not readily sinter when heated. The process involves mixing an alkali with a solution containing a carboxylic acid and titanium (oxy)chloride, followed by hydrolysis through neutralization. The solution is then heated to a specific temperature range to further hydrolyze any remaining titanium (oxy)chloride. This innovative method results in titanium oxide particles with a favorable size distribution.

Another notable patent is for a titanium dioxide aqueous dispersion that boasts high dispersibility and minimal aggregation. This dispersion includes titanium dioxide particles coated with a hydrophobic compound, an aqueous medium, and a nonionic surfactant. The production method involves mixing these components to achieve a pH range conducive to stability and performance.

Career Highlights

Masanori Tomonari is currently employed at Ishihara Sangyo Kaisha, Ltd., where he continues to innovate in the field of titanium dioxide applications. His work has not only contributed to the company's portfolio but has also positioned him as a key figure in materials research.

Collaborations

Throughout his career, Tomonari has collaborated with notable colleagues such as Kiyonobu Ida and Yuto Kameda. These partnerships have fostered a collaborative environment that enhances the innovation process and leads to groundbreaking developments in their field.

Conclusion

Masanori Tomonari's contributions to the field of titanium oxide research exemplify the impact of dedicated inventors on material science. His innovative patents and collaborative efforts continue to shape the future of titanium dioxide 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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