Tokyo, Japan

Keiichi Hirayama

This inventor holds 3 USPTO granted patents. Top assignee: Nec Corporation. Active years: 1988-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiichi Hirayama. Retrieved from https://idiyas.com/inventor/keiichi-hirayama

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 = 1.5

ph-index = 3

Forward Citations = 37(Granted Patents)


Company Filing History:


Years Active: 1988-1992

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3 patents (USPTO):Explore Patents

Title: Keiichi Hirayama: Innovator in Video Composing Systems

Introduction

Keiichi Hirayama is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of video technology, particularly in the area of special effects. With a total of three patents to his name, Hirayama's work has advanced the way video images are composed and processed.

Latest Patents

Hirayama's latest patents include a "Video composing system using special effect apparatus." This innovative system is designed to produce special effects by utilizing two special effect circuits. Each circuit comprises a video display, a write-in address generator, a read-out address generator responsive to special effect signals, and a depth data generator. The depth data generator creates depth data based on the read operation, which enhances the natural appearance of video images. Another significant patent is the "Special effect system for video signal." This system processes television video signals to impart special effects, utilizing special function generators and picture pixel distance calculating circuits. These features allow for pixel rearrangement to create effects such as folding or rolling up portions of the picture, enhancing the three-dimensional appearance of the image.

Career Highlights

Keiichi Hirayama is currently employed at NEC Corporation, a leading technology company known for its innovations in electronics and information technology. His work at NEC has allowed him to explore and develop advanced video processing technologies.

Collaborations

Hirayama has collaborated with notable colleagues, including Shigehisa Kawabe and Kazuo Kashigi. Their combined expertise has contributed to the successful development of innovative video technologies.

Conclusion

Keiichi Hirayama's contributions to video technology through his patents and work at NEC Corporation highlight his role as a significant innovator in the field. His advancements in special effects systems continue to influence the way video content is created and experienced.

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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