Tokyo, Japan

Moritada Niitsu

This inventor holds 2 USPTO granted patents. Top assignees: The Tokyo Electric Power Company, Incorporated, Other. Active years: 1992-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Moritada Niitsu. Retrieved from https://idiyas.com/inventor/moritada-niitsu

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 = 2.0

ph-index = 2

Forward Citations = 16(Granted Patents)


Company Filing History:

goldMedal2 out of 177 
 
The Tokyo Electric Power Company, Incorporated
 patents
silverMedal1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1992-1994

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2 patents (USPTO):Explore Patents

Title: Moritada Niitsu: Innovator in Audio Recording Technology

Introduction

Moritada Niitsu is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of audio recording technology, holding a total of 2 patents. His innovative work focuses on enhancing the quality and efficiency of audio signal recording and playback.

Latest Patents

Niitsu's latest patents include a disc recording device designed for synchronous recording and playback of left and right stereo channels. This device allows for the recording of left channel signals and right channel signals with a super audio-frequency signal range of up to 40 kHz on separate master discs. The system comprises a left disc recording control portion, a right disc recording control portion, and a common control portion. Additionally, he developed another disc recording device that records both left and right channel signals onto different faces of a master disc. This device features a disc inverse face playback control portion and a disc front face playback control portion, ensuring high-quality audio reproduction.

Another significant invention by Niitsu is a multitrack audio system for PCM recording and playback of audio signals. This system utilizes rotary heads to record audio signals onto multiple tracks on magnetic tape. It includes a track grouping circuit, type switching circuit, and various clock oscillators to generate sampling frequencies. The system is designed to convert audio signals into digital signals and back into audio signals, ensuring high fidelity in playback.

Career Highlights

Throughout his career, Moritada Niitsu has worked with prominent organizations, including the Tokyo Electric Power Company. His experience in these companies has allowed him to refine his skills and contribute to advancements in audio technology.

Collaborations

Niitsu has collaborated with various professionals in the field, including his coworker Tsutomu Oohashi. Their joint efforts have led to innovative solutions in audio recording and playback systems.

Conclusion

Moritada Niitsu's contributions to audio technology through his patents and career achievements highlight his role as a significant innovator in the field. His work continues to influence the way audio signals are recorded and played back, ensuring high-quality sound for users worldwide.

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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