Kawasaki, Japan

Fuminari Tanaka

This inventor holds 12 USPTO granted patents. Top assignees: Kabushiki Kaisha Toshiba, Tokyo Shibaura Denki Kabushiki Kaisha, Tokyo Shibaura Electric Co., Ltd.. Active years: 1981-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Fuminari Tanaka. Retrieved from https://idiyas.com/inventor/fuminari-tanaka

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 = 2.5

ph-index = 7

Forward Citations = 136(Granted Patents)


Location History:

  • Yokohama, JP (1981)
  • Kawasaki, JP (1983 - 1987)
  • Tokyo, JP (1989 - 1992)

Company Filing History:


Years Active: 1981-1992

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12 patents (USPTO):Explore Patents

Title: **Fuminari Tanaka: A Pioneer in Semiconductor Innovations**

Introduction

Fuminari Tanaka is a distinguished inventor based in Kawasaki, Japan, known for his contributions to semiconductor technology. With a remarkable portfolio that includes 12 patents, Tanaka's work has significantly impacted the industry, particularly in improving power efficiency and signal integrity in integrated circuits.

Latest Patents

Tanaka's latest patents showcase his innovative approaches to semiconductor design. One notable patent is the **Output Circuit of Semiconductor Integrated Circuit with Reduced Power**. This invention includes a plurality of output transistors, each configured with different current driving capabilities to optimize performance for various loads. Additionally, the circuit employs multiple signal delay mechanisms, enabling precise control over the delay times that drive each output transistor.

Another significant patent is the **Output Control Circuit for Reducing Through Current in CMOS Output Buffer**. This innovation features a transfer gate of CMOS structure that connects the gates of CMOS transistors within the output buffer. This design effectively minimizes the changes in gate potentials, thereby reducing waveform distortion caused by through currents, ultimately enhancing the reliability of the output waveform.

Career Highlights

Tanaka's career includes notable stints at prominent companies, such as Toshiba Corporation and Tokyo Shibaura Electric Co., Ltd. His work in these organizations has allowed him to contribute effectively to advancements in semiconductor technologies. The expertise he gained at these companies was instrumental in guiding his innovative endeavors.

Collaborations

Throughout his career, Tanaka has collaborated with esteemed colleagues, including Satoshi Nonaka and Masanori Kinugasa. These partnerships have fostered a creative environment that promotes innovation and drives the development of cutting-edge technologies in semiconductors.

Conclusion

Fuminari Tanaka stands as a pivotal figure in the realm of semiconductor innovations. His dedication to improving efficiency and performance through his patents underscores his role as a leader in this rapidly evolving field. As technology continues to advance, Tanaka's contributions provide a foundation for future innovations, inspiring a new generation of inventors.

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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