Hanno, Japan

Nobutaka Ishizuka

This inventor holds 5 USPTO granted patents. Top assignee: Shindengen Electric Manufacturing Company Limited. Active years: 2019-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobutaka Ishizuka. Retrieved from https://idiyas.com/inventor/nobutaka-ishizuka

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 = 5.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2019-2020

Loading Chart...
5 patents (USPTO):Explore Patents

Title: Nobutaka Ishizuka: Innovator in Semiconductor Technology

Introduction

Nobutaka Ishizuka is a prominent inventor based in Hanno, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 5 patents. His work focuses on developing advanced semiconductor devices that enhance performance and reliability.

Latest Patents

Ishizuka's latest patents include innovative designs for semiconductor devices. One notable patent describes a semiconductor device that features an overvoltage protection diode. This diode consists of an N-type semiconductor layer and a P-type semiconductor layer, which are alternately disposed adjacent to each other on an insulating film in a voltage supporting region. The design strategically places the overvoltage protection diode at a corner portion on the upper face of the insulating film, extending from the corner to the center of the semiconductor substrate. Another patent outlines a semiconductor device and method of manufacturing that includes a conductive semiconductor substrate and an insulating film. The overvoltage protection diode in this design is formed on the insulating film, with the concentration of p-type impurities being lower than that of n-type impurities, ensuring optimal performance.

Career Highlights

Nobutaka Ishizuka is associated with Shindengen Electric Manufacturing Company Limited, where he continues to innovate in semiconductor technology. His work has been instrumental in advancing the capabilities of semiconductor devices, making them more efficient and reliable.

Collaborations

Ishizuka has collaborated with notable colleagues such as Hiroshi Oshino and Toshiki Matsubara. Their combined expertise has contributed to the successful development of various semiconductor technologies.

Conclusion

Nobutaka Ishizuka's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the development of advanced electronic 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]
Loading…