Saitama, Japan

Tetsuo Akiyama

This inventor holds 4 USPTO granted patents. Top assignees: Pioneer Electronic Corporation, Universal Pioneer Corporation. Active years: 1985-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuo Akiyama. Retrieved from https://idiyas.com/inventor/tetsuo-akiyama

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 1.6

ph-index = 3

Forward Citations = 94(Granted Patents)


Location History:

  • Saitama, JP (1985 - 1988)
  • Tokorozawa, JP (1988)

Company Filing History:


Years Active: 1985-1988

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4 patents (USPTO):Explore Patents

Title: The Innovative Journey of Inventor Tetsuo Akiyama

Introduction

Tetsuo Akiyama is a renowned inventor based in Saitama, Japan. He boasts an impressive portfolio, holding four patents that reflect his innovative spirit and contributions to technology. His work primarily focuses on digital signal processing and playback systems, showcasing his expertise in engineering and invention.

Latest Patents

Among his notable inventions is the "Digital Frequency and Phase Comparator." This patent outlines a sophisticated device designed to detect the frequency of a digital signal and its phase in relation to a reference signal. The invention addresses critical issues, such as eliminating polarity inversions of the output phase and saturated characteristics of the circuit when phase differences exceed predetermined values.

Another significant patent from Akiyama is the "System for Playing Back Information Recorded on a Disk Recording Medium." This system streamlines the playback process of recorded information by integrating a fast-moving pickup device that navigates lead-in and lead-out codes. Notably, this innovation reduces queuing time before playback while ensuring that programs are not omitted during operation.

Career Highlights

Tetsuo Akiyama has had a fruitful career, collaborating with prominent companies such as Pioneer Electronics Corporation and Universal Pioneer Corporation. His experiences in these innovative environments have shaped his approach to invention and technological advancement.

Collaborations

Throughout his career, Akiyama has had the privilege of working alongside talented individuals, including his colleagues Takashi Okano and Shigeru Yasuda. Their collective expertise contributed to the development of many innovative projects, further enhancing the quality and impact of Akiyama's inventions.

Conclusion

Tetsuo Akiyama's inventive contributions have left a lasting mark on the fields of digital signal processing and playback technology. His patents exemplify his commitment to pushing the boundaries of innovation and technology. As we look to the future, Akiyama's work will undoubtedly continue to inspire innovators and engineers alike.

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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