Hitachi, Japan

Motoji Nakajima

This inventor holds 1 USPTO granted patent. Top assignees: Hitachi Haramachi Semi-Conductor, Ltd., Hitachi, Ltd.. Active years: 1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Motoji Nakajima. Retrieved from https://idiyas.com/inventor/motoji-nakajima

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 = 4.0

ph-index = 1

Forward Citations = 8(Granted Patents)


Company Filing History:


Years Active: 1981

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1 patent (USPTO):Explore Patents

Title: Motoji Nakajima: Innovator in Semiconductor Technology

Introduction

Motoji Nakajima is a notable inventor from Hitachi, Japan, recognized for his contributions to semiconductor technology. He holds a patent that addresses critical issues in semiconductor device construction, particularly concerning stress alleviation.

Latest Patents

Motoji Nakajima's patent focuses on a semiconductor device that includes means for alleviating stress caused by thermal expansion differences among its components. The device features a heat-radiating electrode plate, a semiconductor element soldered to a depressed portion of the plate, and a header lead soldered onto the semiconductor element. Additionally, it incorporates a terminal board of insulating material and a lead terminal connected to the header lead. This innovative design mitigates stress transmission to the solder and alleviates lateral stress, resulting in a semiconductor device that is resistant to thermal fatigue and vibrations, while also being simple in construction and efficient in operation. He holds 1 patent.

Career Highlights

Throughout his career, Nakajima has worked with prominent companies such as Hitachi, Ltd. and Hitachi Haramachi Semiconductor, Ltd. His experience in these organizations has significantly contributed to his expertise in semiconductor technology.

Collaborations

Some of Nakajima's notable coworkers include Kazutoyo Narita and Tadashi Sakaue, who have also made significant contributions to the field of semiconductor technology.

Conclusion

Motoji Nakajima's innovative work in semiconductor devices showcases his commitment to enhancing operational efficiency and reliability in technology. His contributions continue to influence the semiconductor industry today.

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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