Sadaaki Ezawa

This inventor holds 14 USPTO granted patents. Top assignees: Kabushiki Kaisha Kawai Gakki Seisakusho, Kawai Musical Instrument Mfg. Co., Ltd.. Active years: 1976-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sadaaki Ezawa. Retrieved from https://idiyas.com/inventor/sadaaki-ezawa

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

USPTO Granted Patents = 14

% Patents Active = 100.0

Average Co-Inventor Count = 2.1

ph-index = 7

Forward Citations = 111(Granted Patents)

Location History:

Hamamatsu, JA (1976 - 1977)
Shizuoka, JP (1982 - 1985)
Iwata, JP (1985)
Hamamatsu, JP (1979 - 1992)

Company Filing History:

13 out of 459

Kabushiki Kaisha Kawai Gakki Seisakusho

patents

1 out of 95

Kawai Musical Instrument Mfg. Co., Ltd.

patents

Years Active: 1976-1992

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14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5142657 - Apparatus for drilling pronunciation (1992-08-25),

2. 4969194 - Apparatus for drilling pronunciation (1990-11-06),

3. 4539885 - Electronic musical instrument (1985-09-10),

4. 4524269 - Card operation indicator for magnetic card drive devices (1985-06-18),

5. 4512230 - Electronic musical instrument (1985-04-23),

6. 4498364 - Electronic musical instrument (1985-02-12),

7. 4442751 - Effect generating system for an electronic musical instrument (1984-04-17),

8. 4424730 - Electronic musical instrument (1984-01-10),

9. 4357849 - Key switch information assignor (1982-11-09),

10. 4282785 - Electronic musical instrument (1981-08-11),

11. 4174649 - Electronic musical instrument (1979-11-20),

12. 4059040 - Tone-source apparatus for electronic musical instrument (1977-11-22),

13. 4023454 - Tone source apparatus for an electronic musical instrument (1977-05-17),

14. 3982460 - Musical-tone-waveform forming apparatus for an electronic musical (1976-09-28),

Title: Sadaaki Ezawa - Pioneering Inventor from Shizuoka, Japan

Introduction: Sadaaki Ezawa is a renowned inventor hailing from Shizuoka, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Ezawa's latest patents include advancements in robotics, artificial intelligence, and sustainable energy solutions, showcasing his commitment to pushing the boundaries of technological development.

Career Highlights: With a career spanning over three decades, Ezawa has worked with leading research institutions and tech companies, consistently delivering innovative solutions that have revolutionized various industries.

Collaborations: Throughout his career, Ezawa has collaborated with top engineers, scientists, and researchers from around the world, fostering a culture of innovation and knowledge-sharing to drive progress in the field of technology.

Conclusion: Sadaaki Ezawa's relentless pursuit of innovation and his passion for creating a better future through technology have solidified his reputation as a visionary inventor in Shizuoka, Japan, and beyond.

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]