Tokyo, Japan

Masanobu Doken

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Telegraph and Telephone Public Corporation. Active years: 1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masanobu Doken. Retrieved from https://idiyas.com/inventor/masanobu-doken

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 = 3.0

ph-index = 1

Forward Citations = 46(Granted Patents)


Company Filing History:


Years Active: 1980

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1 patent (USPTO):Explore Patents

Title: Masanobu Doken: Innovator in Semiconductor Technology

Introduction

Masanobu Doken is a prominent inventor based in Tokyo, Japan. He is known for his significant contributions to semiconductor technology, particularly in the development of devices that enhance the performance and reliability of semiconductor materials.

Latest Patents

Doken holds a patent for a semiconductor device featuring a buried insulating layer. This innovative patent describes a semiconductor manufacturing method and device that involves forming an insulating SiO₂ film on both surfaces of a silicon substrate. The process utilizes ion implantation to create a buried SiO₂ layer at a predetermined depth beneath one of the substrate surfaces. This design isolates a body of the substrate layer above the buried layer, allowing for the formation of a semiconductive device in the isolated body. The surface layers of SiO₂ are crucial as they mechanically balance the internal strains generated during the formation of the buried layer, preventing mechanical imperfections in the surface portions of the substrate. Doken's patent is a testament to his expertise in semiconductor technology, with a total of 1 patent to his name.

Career Highlights

Masanobu Doken has made significant strides in his career, particularly through his work at Nippon Telegraph and Telephone Public Corporation. His role at this esteemed organization has allowed him to focus on advancing semiconductor technologies and contributing to the field of electronics.

Collaborations

Doken has collaborated with notable colleagues, including Katsutoshi Izumi and Hisashi Ariyoshi. These partnerships have fostered innovation and have been instrumental in the development of new technologies in the semiconductor industry.

Conclusion

Masanobu Doken's contributions to semiconductor technology highlight his role as an influential inventor in the field. His innovative patent and work at Nippon Telegraph and Telephone Public Corporation demonstrate his commitment to advancing technology and improving 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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