Tokyo, Japan

Hisakazu Otoi

This inventor holds 4 USPTO granted patents and 2 published patent applications. Top assignees: Renesas Electronics Corporation, Renesas Technology Corp.. Active years: 2005-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisakazu Otoi. Retrieved from https://idiyas.com/inventor/hisakazu-otoi-s5cd2a8y

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

Calculating rank
USPTO Granted Patents = 4 

% Patents Active = 100.0

Average Co-Inventor Count = 3.2

ph-index = 2

Forward Citations = 16(Granted Patents)


Location History:

  • Hyogo, JP (2005)
  • Tokyo, JP (2010 - 2014)

Company Filing History:


Years Active: 2005-2014

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4 patents (USPTO):Explore Patents

Title: Hisakazu Otoi: Innovator in Nonvolatile Semiconductor Devices

Introduction

Hisakazu Otoi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of nonvolatile semiconductor devices. With a total of 4 patents to his name, Otoi's work has had a lasting impact on the industry.

Latest Patents

Hisakazu Otoi's latest patents include a method of manufacturing nonvolatile semiconductor devices. This innovative approach involves a semiconductor substrate with a main surface, featuring first and second floating gates that are spaced apart. The design includes first and second control gates located on these floating gates, along with a first insulation film on the first control gate and a second insulation film on the second control gate. These films are designed to contact each other, creating a gap between the floating gates. This method ensures the functionality of the nonvolatile semiconductor device while suppressing variations in the threshold voltage of the floating gate.

Career Highlights

Otoi has worked with notable companies in the semiconductor industry, including Renesas Technology Corporation and Renesas Electronics Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in semiconductor technology.

Collaborations

Some of Hisakazu Otoi's notable coworkers include Yasuaki Yonemochi and Akio Nishida. Their collaboration has likely fostered an environment of innovation and creativity, leading to significant advancements in their respective fields.

Conclusion

Hisakazu Otoi's contributions to the field of nonvolatile semiconductor devices highlight his role as a key innovator in the industry. His patents and career achievements reflect a commitment to advancing technology and improving device functionality.

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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