Tokyo, Japan

Ken-Ichi Oyama

This inventor holds 8 USPTO granted patents. Top assignee: Nec Corporation. Active years: 1994-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ken-Ichi Oyama. Retrieved from https://idiyas.com/inventor/ken-ichi-oyama

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 = 1.1

ph-index = 5

Forward Citations = 95(Granted Patents)


Company Filing History:


Years Active: 1994-2000

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8 patents (USPTO):Explore Patents

Title: Ken-Ichi Oyama: Innovator in Nonvolatile Semiconductor Memory Technology

Introduction

Ken-Ichi Oyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of nonvolatile semiconductor memory technology. With a total of 8 patents to his name, Oyama's work has had a lasting impact on the industry.

Latest Patents

One of Oyama's latest patents is a method of forming a memory cell of a nonvolatile semiconductor memory. This method involves creating a memory cell in a nonvolatile semiconductor memory device with a MOSFET configuration. The process includes using a polycrystalline semiconductor film to form floating gates and an underlying gate oxide film, which are processed by dry etching. Additionally, impurities are ion injected into the semiconductor substrate to create a diffused impurity layer. Another notable patent is for a memory cell of a nonvolatile semiconductor device, which features a plurality of recessed portions on a semiconductor substrate. This design enhances the functionality and efficiency of the memory device.

Career Highlights

Ken-Ichi Oyama is currently employed at NEC Corporation, where he continues to innovate in semiconductor technology. His work has been instrumental in advancing the capabilities of nonvolatile memory devices, making them more efficient and reliable.

Collaborations

Oyama has collaborated with notable colleagues, including Takeshi Okazawa and Hiroki Shirai. Their combined expertise has contributed to the successful development of various semiconductor technologies.

Conclusion

Ken-Ichi Oyama's contributions to nonvolatile semiconductor memory technology have established him as a key figure in the field. His innovative patents and collaborations continue to shape the future 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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