Nagano, Japan

Yasuhiko Ohnishi

This inventor holds 2 USPTO granted patents. Top assignee: Fuji Electric Co., Ltd.. Active years: 2001-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuhiko Ohnishi. Retrieved from https://idiyas.com/inventor/yasuhiko-ohnishi

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 = 2

Forward Citations = 139(Granted Patents)


Company Filing History:


Years Active: 2001-2004

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

Title: Yasuhiko Ohnishi: Innovator in Semiconductor Technology

Introduction

Yasuhiko Ohnishi is a prominent inventor based in Nagano, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work focuses on enhancing the efficiency and production capabilities of semiconductor devices.

Latest Patents

One of Yasuhiko Ohnishi's latest patents is a semiconductor device with an alternating conductivity type layer and a method of manufacturing the same. This invention clarifies the effects of parameters and enables the mass production of a super-junction semiconductor device. The device features a drift layer composed of a parallel pn layer that conducts electricity in the ON state and is depleted in the OFF state. The quantity of impurities in n drift regions is maintained within specific ranges relative to the p partition regions, ensuring optimal performance. Additionally, the impurity density and width of the regions are carefully controlled to enhance the device's functionality.

Career Highlights

Yasuhiko Ohnishi is associated with Fuji Electric Co., Ltd., where he continues to innovate and develop advanced semiconductor technologies. His expertise in this field has positioned him as a key figure in the industry, contributing to the advancement of electronic components.

Collaborations

Yasuhiko Ohnishi has collaborated with notable colleagues, including Yasushi Miyasaka and Tatsuhiko Fujihira. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Yasuhiko Ohnishi's contributions to semiconductor technology exemplify his commitment to innovation and excellence. His patents reflect a deep understanding of the complexities involved in semiconductor manufacturing, paving the way for future advancements in the field.

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…