Toyota, Japan

Kazunobu Ishibashi

This inventor holds 11 USPTO granted patents and 2 published patent applications, plus 1 CIPO patent and 4 EPO patents. Top assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Chuo Kenkyusho, Tosoh Corporation. Active years: 1993-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazunobu Ishibashi. Retrieved from https://idiyas.com/inventor/kazunobu-ishibashi

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

USPTO Granted Patents = 11 

% Patents Active = 54.5


 

Average Co-Inventor Count = 5.3

ph-index = 6

Forward Citations = 120(Granted Patents)


Company Filing History:


Years Active: 1993-2022

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11 patents (USPTO):Explore Patents

Title: Celebrating the Innovations of Kazunobu Ishibashi

Introduction

Kazunobu Ishibashi is a notable inventor based in Toyota, Japan, recognized for his significant contributions to the field of technology. With an impressive total of 11 patents, Ishibashi has made remarkable advancements, particularly in fuel cell technology and manufacturing methods.

Latest Patents

Among his latest innovations is a **fuel cell electrode catalyst**. This catalyst features a noble-metal-supported component that includes a carbon support and a noble metal enhanced by a water-repellent material. The carbon support is specifically identified as mesoporous carbon, which has a pore volume characterized by pores sized between 2 nm and 5 nm, ranging from 2.1 ml/g to 2.4 ml/g. The water-repellent material constitutes an important modification, comprising 3% to 7% by weight of the combined total of the mesoporous carbon and the water-repellent material. Additionally, Ishibashi has developed a **tank manufacturing method and tank**. This method entails constructing a tank that comprises a tubular body portion and dome-shaped side end portions formed on either side. It involves creating a tubular compact from a single fiber reinforced resin sheet, which is wound around a core with thermoplastic resin that has been melted.

Career Highlights

Ishibashi has had a commendable career with his tenure at notable companies such as Toyota Motor Corporation and Tosoh Corporation. His work at these organizations has significantly contributed to his development as an inventor, allowing him to refine his expertise and innovation abilities.

Collaborations

Throughout his career, Ishibashi has collaborated with prominent individuals, including Shinichi Matsumoto and Shiroh Kondoh. These partnerships have fostered a rich environment for advancing his inventive pursuits.

Conclusion

Kazunobu Ishibashi’s contributions to technology, specifically through his patented innovations in fuel cells and manufacturing methods, underscore his role as a leading inventor. His work not only reflects his commitment to advancement in the field but also serves as an inspiration for future inventors aiming to make a significant impact.

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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