Kasugai, Japan

Saburo Hiraoka

This inventor holds 4 USPTO granted patents. Top assignee: Mitsubishi Rayon Company, Limited. Active years: 1987-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Saburo Hiraoka. Retrieved from https://idiyas.com/inventor/saburo-hiraoka

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 = 3

Forward Citations = 24(Granted Patents)


Location History:

  • Nagoya, JP (1987 - 1988)
  • Kasugai, JP (1990 - 1991)

Company Filing History:


Years Active: 1987-1991

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4 patents (USPTO):Explore Patents

Title: Innovator Spotlight: Saburo Hiraoka

Introduction

Saburo Hiraoka, an accomplished inventor based in Kasugai, Japan, has made significant contributions to the field of materials science. With a total of four patents to his name, Hiraoka has developed innovative methods for producing advanced materials that enhance various industrial applications.

Latest Patents

Hiraoka's most recent patents highlight his expertise in polymer processing and material formulation. One of his notable inventions is a preparation method for spherical melamine resin particulates. This method involves adding an acid catalyst to an aqueous solution containing at least 0.5 to less than 5% by weight of a polymerizable melamine derivative. By adjusting the pH of the solution to between 4 and 5 and applying heat treatment, the invention ensures uniform particle size and a crosslinked structure. The resulting spherical melamine resin particulates have versatile applications as additives in coating compositions, pigments, and other materials.

Another significant patent focuses on the production of antistatic polymeric materials. This invention describes a process that achieves a surface electrical resistivity of less than 10^10 Ω/sq and a half-life time shorter than 40 seconds. The process involves heat-treating a moistened polymeric material with an aqueous solution of stannic chloride at specific temperatures ranging from 60 to 140 degrees Celsius for a duration of 2 to 60 minutes. This innovation addresses the growing need for materials with effective antistatic properties across various applications.

Career Highlights

Saburo Hiraoka is associated with Mitsubishi Rayon Company, Limited, a leading player in the chemical industry. His work within the company underscores his commitment to advancing material technology and contributes to the company’s reputation for innovation in polymer solutions.

Collaborations

Hiraoka collaborates with notable colleagues such as Shinji Hama and Mitsuo Senga. These professionals contribute their unique skills and insights, fostering a rich collaborative environment that enhances their innovative pursuits.

Conclusion

Saburo Hiraoka stands out as a visionary in the realm of material science. His recent patents not only demonstrate his technical prowess but also reflect the impact of his work on various industries. As he continues to develop groundbreaking solutions, Hiraoka remains a significant contributor to the advancement of technology and materials innovation.

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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