Ichihara, Japan

Kenji Yakushiji

This inventor holds 2 USPTO granted patents. Top assignee: Showa Denko K.k.. Active years: 2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenji Yakushiji. Retrieved from https://idiyas.com/inventor/kenji-yakushiji

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 = 1.5

ph-index = 2

Forward Citations = 11(Granted Patents)


Company Filing History:


Years Active: 2009

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2 patents (USPTO):Explore Patents

Title: Kenji Yakushiji: Innovator in Semiconductor Technology

Introduction

Kenji Yakushiji is a prominent inventor based in Ichihara, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of light-emitting devices. With a total of 2 patents to his name, Yakushiji's work has advanced the efficiency and production methods of semiconductor devices.

Latest Patents

Yakushiji's latest patents include a method for the fabrication of semiconductor light-emitting devices and a production method for semiconductor devices. The first patent outlines a method that involves stacking semiconductor layers on a substrate to form a wafer. This method includes the formation of trenches that expose the first conductive type semiconductor layer and utilizes a laser beam to create additional trenches. The resulting semiconductor chips enhance the efficiency of light extraction, even with smooth end faces.

The second patent focuses on producing a Group III nitride semiconductor device with a pentagonal or more complex chip shape. This method involves several steps, including epitaxial growth of the semiconductor, laser irradiation to form separation grooves, and grinding or polishing the main surface. The innovative approach allows for low-cost production while maintaining good area efficiency.

Career Highlights

Kenji Yakushiji is associated with Showa Denko K.K., a company known for its advancements in chemical and semiconductor technologies. His work has positioned him as a key figure in the semiconductor industry, contributing to the development of efficient manufacturing processes.

Collaborations

Yakushiji has collaborated with notable coworkers, including Katsuki Kusunoki and Hisayuki Miki. Their combined expertise has furthered the research and development of semiconductor technologies.

Conclusion

Kenji Yakushiji's contributions to semiconductor technology through his innovative patents and collaborations highlight his role as a leading inventor in the field. His work continues to influence the efficiency and production methods of semiconductor devices.

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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