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For the Inventor, By the Inventor

Yamato, Japan

Naotaka Miyaji

This inventor holds 8 USPTO granted patents. Top assignee: Victor Company of Japan, Limited. Active years: 1977-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naotaka Miyaji. Retrieved from https://idiyas.com/inventor/naotaka-miyaji

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

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 3.8

ph-index = 8

Forward Citations = 338(Granted Patents)


Location History:

  • Tokyo, JA (1977)
  • Yokohama, JP (1983)
  • Yamato, JP (1981 - 1987)

Company Filing History:

goldMedal8 out of 2,887 
 
Victor Company of Japan, Limited
 patents

Years Active: 1977-1987

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8 patents (USPTO):Explore Patents
1. 4696043 - Microphone apparatus having a variable directivity pattern (1987-09-22),
2. 4559642 - Phased-array sound pickup apparatus (1985-12-17),
3. 4521908 - Phased-array sound pickup apparatus having no unwanted response pattern (1985-06-04),
4. 4412097 - Variable-directivity microphone device (1983-10-25),
5. 4399327 - Variable directional microphone system (1983-08-16),
6. 4354059 - Variable-directivity microphone device (1982-10-12),
7. 4308425 - Variable-directivity microphone device (1981-12-29),
8. 4041256 - Open-back type headphone with a detachable attachment (1977-08-09),

Title: Naotaka Miyaji: Innovator in Microphone Technology

Introduction

Naotaka Miyaji is a prominent inventor based in Yamato, Japan. He has made significant contributions to the field of microphone technology, holding a total of 8 patents. His innovative designs have advanced the capabilities of sound pickup apparatuses, making them more versatile and effective.

Latest Patents

Miyaji's latest patents include a microphone apparatus having a variable directivity pattern. This invention features an array of equally spaced microphones divided into subarrays, allowing for enhanced sound capture through a sophisticated weighting network. Another notable patent is the phased-array sound pickup apparatus, which utilizes directional microphones to steer the main lobe of sound pickup, providing greater control over audio directionality.

Career Highlights

Miyaji is currently employed at the Victor Company of Japan, Limited, where he continues to innovate in audio technology. His work has not only improved existing technologies but has also paved the way for new applications in various fields.

Collaborations

Miyaji has collaborated with notable coworkers such as Yukinobu Ishigaki and Kaoru Totsuka, contributing to a dynamic team focused on advancing audio technology.

Conclusion

Naotaka Miyaji's contributions to microphone technology exemplify the spirit of innovation. His patents reflect a deep understanding of sound engineering and a commitment to enhancing audio experiences.

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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