Tokyo, Japan

Masakazu Kiyama

This inventor holds 2 USPTO granted patents. Top assignee: Nippon Sheet Glass Environment Amenity Co., Ltd.. Active years: 2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masakazu Kiyama. Retrieved from https://idiyas.com/inventor/masakazu-kiyama

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


% Patents Active = 50.0

Average Co-Inventor Count = 3.4

ph-index = 1

Forward Citations = 6(Granted Patents)


Location History:

  • Minato-ku, JP (2018)
  • Tokyo, JP (2018)

Company Filing History:


Years Active: 2018

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2 patents (USPTO):Explore Patents

Title: A Spotlight on Inventor Masakazu Kiyama

Introduction: Masakazu Kiyama is a prominent inventor based in Minato-ku, Japan, known for his innovative contributions to acoustic systems. With a total of 2 patents to his name, Kiyama has made significant strides in enhancing sound technology, benefiting various sectors that rely on effective acoustic solutions.

Latest Patents: Kiyama's recent patents include an advanced acoustic system and sound-absorbing panel technology. His acoustic system incorporates multiple elements such as customer-side and counselor-side microphones, sound changing units, and loudspeakers. This innovative design features sound transmission paths of equal length, ensuring an enhanced auditory experience through phase-aligned sound signals.

Furthermore, the sound-absorbing panel he developed is designed to optimize sound insulation. It consists of an outer frame body that contains an acoustic space fitted with specialized sound materials. The structure effectively separates sound sources from their surroundings, demonstrating Kiyama's commitment to pioneering soundproofing methods.

Career Highlights: Kiyama is affiliated with Nippon Sheet Glass Environment Amenity Co., Ltd., where he applies his knowledge and creativity to improve sound technology. His patents reflect a deep understanding of acoustic principles and a dedication to innovative problem-solving in environmental quality.

Collaborations: Kiyama has collaborated with notable coworkers of the likes of Fukushi Kawakami and Takehisa Okamoto. Together, they have contributed to the advancement of sound technologies, promoting greater efficiency and effectiveness in clinical and commercial applications.

Conclusion: Masakazu Kiyama stands out as an influential inventor in the field of acoustics. With a clear focus on developing cutting-edge sound technologies, Kiyama's works are poised to make a lasting impact on industries that prioritize sound quality and innovation. His collaborative spirit and commitment to the field are evident in his contributions, and further developments can be expected from this talented inventor.

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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