Kodaira, Japan

Kazuo Itoh

This inventor holds 3 USPTO granted patents. Top assignees: Hitachi, Ltd., Fujitsu Corporation, Nippon Electric Co., Ltd.. Active years: 1977-1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuo Itoh. Retrieved from https://idiyas.com/inventor/kazuo-itoh-77zayjeu

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 = 3.9

ph-index = 2

Forward Citations = 12(Granted Patents)


Location History:

  • Yokohama, JA (1977)
  • Kodaira, JP (1981 - 1986)

Company Filing History:


Years Active: 1977-1986

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3 patents (USPTO):Explore Patents

Title: Kazuo Itoh: Innovator in Semiconductor Technology

Introduction

Kazuo Itoh is a prominent inventor known for his contributions to semiconductor technology. He is based in Kodaira, Japan, and holds three patents that showcase his innovative work in the field. His inventions have significantly impacted the efficiency and performance of semiconductor devices.

Latest Patents

Kazuo Itoh's latest patents include a semiconductor integrated circuit device and a method of producing the same. The I²L device he developed features a P type injector region of a PNP transistor that is buried in an N⁻ type epitaxial layer. This design improves the carrier injection efficiency of the transistor, resulting in a high switching speed. Additionally, the device includes an inversed NPN transistor, where the P type collector region of the PNP transistor serves as the base region of the NPN transistor. This configuration reduces power consumption by limiting the effective emitter portion of the NPN transistor to a specific area.

Career Highlights

Throughout his career, Kazuo Itoh has worked with notable companies such as Hitachi, Ltd. and Nippon Telegraph and Telephone Public Corporation. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in semiconductor technology.

Collaborations

Kazuo Itoh has collaborated with esteemed colleagues, including Katsumi Ogiue and Akio Hayasaka. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Kazuo Itoh's work in semiconductor technology exemplifies the spirit of innovation. His patents reflect a deep understanding of electronic devices and their efficiency. His contributions continue to influence the field and inspire future advancements in technology.

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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