Hyogo, Japan

Hideaki Nagaoka

This inventor holds 11 USPTO granted patents. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Renesas Technology Corp.. Active years: 1999-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hideaki Nagaoka. Retrieved from https://idiyas.com/inventor/hideaki-nagaoka

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


% Patents Active = 81.8

Average Co-Inventor Count = 1.2

ph-index = 5

Forward Citations = 110(Granted Patents)


Location History:

  • Hyogo, JP (1999 - 2002)
  • Tokyo, JP (2002 - 2004)

Company Filing History:


Years Active: 1999-2004

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11 patents (USPTO):Explore Patents

Title: The Innovations of Hideaki Nagaoka

Introduction

Hideaki Nagaoka is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 11 patents. His work focuses on enhancing memory devices, which are crucial for modern electronic applications.

Latest Patents

Nagaoka's latest patents include a semiconductor memory device with dual port memory cells. This innovative device features multiple memory cells that allow for dual port access. The design incorporates two driver transistors, two load transistors, and two access transistors. During data reading, the word line activates the access transistors to retrieve data from the driver transistors to a pair of bit lines. In the data writing process, the load transistor control line enables the load transistors to input data into the driver transistors from a pair of memory cell VCC lines. Another notable patent is a semiconductor memory device that allows for a variable number of independently operating memory sets. By implementing a switching circuit, the device can adjust the correspondence between memory cell arrays and address setting circuits, optimizing layout area and functionality.

Career Highlights

Throughout his career, Nagaoka has worked with notable companies such as Mitsubishi Electric Corporation and Renesas Technology Corporation. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.

Collaborations

Nagaoka has collaborated with esteemed colleagues, including Kiyoyasu Akai and Kazuhito Tsutsumi. Their joint efforts have further advanced the field of semiconductor memory devices.

Conclusion

Hideaki Nagaoka's contributions to semiconductor technology through his innovative patents have significantly impacted the industry. His work continues to influence advancements in memory devices, showcasing the importance of innovation 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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