Tokyo, Japan

Hirotsugu Ishihara

This inventor holds 5 USPTO granted patents and 3 published patent applications. Top assignee: Sony Corporation. Active years: 2002-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirotsugu Ishihara. Retrieved from https://idiyas.com/inventor/hirotsugu-ishihara

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

USPTO Granted Patents = 5 

% Patents Active = 20.0

Average Co-Inventor Count = 4.2

ph-index = 2

Forward Citations = 11(Granted Patents)


Location History:

  • Kanagawa, JP (2002)
  • Tokyo, JP (2012 - 2016)

Company Filing History:


Years Active: 2002-2016

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5 patents (USPTO):Explore Patents

Title: Hirotsugu Ishihara: Innovator in Porous Carbon Materials

Introduction

Hirotsugu Ishihara is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the development of porous carbon materials. With a total of 5 patents to his name, Ishihara's work focuses on creating efficient adsorbents for various applications.

Latest Patents

Ishihara's latest patents include innovations such as a porous carbon material designed to adsorb desired substances efficiently. This material utilizes peat as a raw material and features fine pores with a diameter ranging from 1×10 to 2×10, achieving a total volume of fine pores of 0.5 cm/g or more. Additionally, he has developed methods for producing metal thin films on substrates, which involve a series of transfer steps and electroless plating techniques.

Career Highlights

Ishihara is currently employed at Sony Corporation, where he continues to push the boundaries of material innovation. His work has not only advanced the understanding of porous materials but has also opened new avenues for their application in various industries.

Collaborations

Throughout his career, Ishihara has collaborated with notable colleagues such as Toshiki Shimamura and Takahiro Kamei. These partnerships have fostered a creative environment that encourages the exchange of ideas and expertise.

Conclusion

Hirotsugu Ishihara's contributions to the field of porous carbon materials exemplify the impact of innovative thinking in science and technology. His patents reflect a commitment to developing solutions that address real-world challenges.

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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