Tokyo, Japan

Mikio Tsujiuchi

This inventor holds 21 USPTO granted patents and 2 published patent applications, primarily in Semiconductor Technology. Top assignees: Renesas Electronics Corporation, Renesas Technology Corp.. Active years: 2005-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mikio Tsujiuchi. Retrieved from https://idiyas.com/inventor/mikio-tsujiuchi

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

Calculating rank
USPTO Granted Patents = 21 

% Patents Active = 42.9

Average Co-Inventor Count = 2.1

ph-index = 4

Forward Citations = 103(Granted Patents)


Location History:

  • Kanagawa, JP (2012 - 2013)
  • Kawasaki, JP (2015 - 2017)
  • Tokyo, JP (2005 - 2018)

Company Filing History:


Years Active: 2005-2018

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Areas of Expertise:
Semiconductor Device
Short Circuit Capability
Manufacturing Method
Magnetic Tunnel Junction
Memory Element
Stress Insulating Film
Trench Isolation
SOI Structure
Protective Film
Device Assembly
Memory Technology
Integrated Circuits
21 patents (USPTO):Explore Patents

Title: Celebrating the Innovations of Mikio Tsujiuchi

Introduction: Mikio Tsujiuchi, a prominent inventor located in Tokyo, Japan, holds an impressive portfolio of 21 patents. His work primarily focuses on semiconductor technologies, contributing significantly to advancements within the industry.

Latest Patents: Among his latest innovations, Tsujiuchi has developed a "Semiconductor device with improved short circuit capability." This device enhances short circuit capabilities while minimizing the decline in overall current capability. It features a configuration of insulated gate bipolar transistors (IGBTs) arranged strategically over a semiconductor substrate to optimize performance. Another notable invention is the "Semiconductor device and method for manufacturing the same," which incorporates a semiconductor substrate designed with an n-type offset region and multiple trenches to enhance conductivity between n-drain and n-source regions.

Career Highlights: Tsujiuchi's career has been marked by his tenure at notable companies, including Renesas Electronics Corporation and Renesas Technology Corporation. His work in these organizations has allowed him to push the boundaries of semiconductor technology and contribute to the development of cutting-edge devices.

Collaborations: Throughout his career, Mikio Tsujiuchi has collaborated with skilled professionals such as Tatsunori Murata and Toshiaki Iwamatsu. These collaborations not only highlight the synergistic nature of innovation but also amplify the potential for groundbreaking inventions stemming from collective expertise.

Conclusion: Mikio Tsujiuchi's contributions to the field of semiconductor technology are commendable and reflect his dedication to innovation. With numerous patents under his name, Tsujiuchi continues to pave the way for advancements that enhance the capabilities of semiconductor devices worldwide. His work stands as a testament to the importance of inventors in shaping the future of 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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