Tokyo, Japan

Katsuo Ishizaka

This inventor holds 7 USPTO granted patents and 1 published patent application. Top assignees: Renesas Electronics Corporation, Renesas Technology Corp.. Active years: 2010-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsuo Ishizaka. Retrieved from https://idiyas.com/inventor/katsuo-ishizaka

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

USPTO Granted Patents = 7 

% Patents Active = 57.1

Average Co-Inventor Count = 5.5

ph-index = 3

Forward Citations = 25(Granted Patents)


Location History:

  • Tokyo, JP (2010 - 2012)
  • Kitagunma-gun, JP (2011 - 2013)

Company Filing History:


Years Active: 2010-2013

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7 patents (USPTO):Explore Patents

Title: Katsuo Ishizaka: Innovator in Semiconductor Technology

Introduction

Katsuo Ishizaka is a prominent inventor based in Tokyo, Japan, known for his contributions to semiconductor technology. With a total of 7 patents, he has made significant advancements in the field, particularly in power conversion devices.

Latest Patents

Ishizaka's latest patents include a semiconductor device for power conversion, which features two semiconductor packages arranged in opposite directions on an inductive conductor. This innovative design allows for improved efficiency and functionality. Another notable patent is a semiconductor device and method of manufacturing the same, which enhances mounting flexibility and reliability while reducing manufacturing costs. This device incorporates an IGBT and a diode mounted over a die pad, connected by a clip that optimizes space and performance.

Career Highlights

Throughout his career, Ishizaka has worked with leading companies in the semiconductor industry, including Renesas Electronics Corporation and Renesas Technology Corporation. His work has been instrumental in developing technologies that improve the performance and reliability of semiconductor devices.

Collaborations

Ishizaka has collaborated with notable colleagues such as Norio Kido and Ichio Shimizu, contributing to various projects that have advanced semiconductor technology.

Conclusion

Katsuo Ishizaka's innovative work in semiconductor technology has led to significant advancements in the field. His patents reflect a commitment to improving device performance and manufacturing processes, solidifying his reputation as a leading inventor in the industry.

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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