Itami, Japan

Keiji Yamauchi

This inventor holds 2 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1990-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Yamauchi. Retrieved from https://idiyas.com/inventor/keiji-yamauchi

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 = 3.1

ph-index = 2

Forward Citations = 25(Granted Patents)


Location History:

  • Itami, JP (1990)
  • Hyogo, JP (1999)

Company Filing History:


Years Active: 1990-1999

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2 patents (USPTO):Explore Patents

Title: Keiji Yamauchi: Innovator in Semiconductor Technology

Introduction

Keiji Yamauchi is a prominent inventor based in Itami, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work focuses on improving the efficiency and reliability of semiconductor substrates.

Latest Patents

Yamauchi's latest patents include a crystal orientation detectable semiconductor substrate and methods for manufacturing it. This innovation allows for the detection of the crystal orientation of a silicon wafer while maintaining a circular outer perimeter. This design circumvents various issues associated with conventional semiconductor substrates, such as reduced mechanical strength and non-uniformity of resist film thickness. Additionally, he has developed a semiconductor production apparatus that utilizes a solder alloy with limited Sn content, which enhances the reliability of semiconductor devices by preventing cracking and separation of the target.

Career Highlights

Keiji Yamauchi is associated with Mitsubishi Electric Corporation, where he continues to advance semiconductor technology. His work has been instrumental in addressing challenges faced in the production of semiconductor devices, ensuring higher reliability and efficiency.

Collaborations

Yamauchi has collaborated with notable colleagues, including Yasuhiro Kimura and Hidekazu Yamamoto. Their combined expertise has contributed to the successful development of innovative semiconductor solutions.

Conclusion

Keiji Yamauchi's contributions to semiconductor technology exemplify the importance of innovation in this critical field. His patents reflect a commitment to enhancing the performance and reliability of semiconductor devices, making a lasting impact on the industry.

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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