Yokosuka, Japan

Tadashi Ishii

This inventor holds 1 USPTO granted patent. Top assignee: Kabushiki Kaisha Toshiba. Active years: 2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadashi Ishii. Retrieved from https://idiyas.com/inventor/tadashi-ishii-t73h621d

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 2001

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1 patent (USPTO):Explore Patents

Title: **Innovator Spotlight: Tadashi Ishii**

Introduction

Tadashi Ishii, a talented inventor based in Yokosuka, Japan, has made significant contributions to the field of electronics with his innovative inventions. His work primarily focuses on the development of high-performance materials, particularly in circuit board technology.

Latest Patents

Among his notable achievements, Ishii holds a patent for a ceramic circuit board and method of manufacturing the same. This invention introduces a ceramic circuit board that includes a ceramic substrate composed of ceramic crystal grains and liquid phase component grains. With a thermal conductivity of 180 W/m·K or more, this board excels in heat radiating properties and possesses high strength, effectively minimizing the risk of crack formation during assembly and operation. Furthermore, this design reduces the likelihood of short-circuit incidents in the conductive layer, marking a significant advancement in electronic circuit board technology.

Career Highlights

Tadashi Ishii is associated with Kabushiki Kaisha Toshiba, a prominent company known for its focus on innovation and technology. His role there has allowed him to contribute extensively to the fields of materials engineering and circuit design, solidifying his reputation as a skilled inventor.

Collaborations

Throughout his career, Ishii has collaborated with notable colleagues such as Miho Nakamura and Hideki Sato. Their collective efforts have fostered a dynamic environment for innovation and development in electronics, further enhancing the impact of their research and inventions.

Conclusion

Tadashi Ishii's contributions to the invention of advanced materials for circuit boards showcase his remarkable skills as an inventor. His dedication to improving thermal conductivity and structural integrity in electronic applications not only highlights his innovative spirit but also sets a benchmark in the industry for future developments.

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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