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Hamamatsu, Japan

Kazunari Furukawa

This inventor holds 8 USPTO granted patents. Top assignee: Yamaha Corporation. Active years: 1990-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazunari Furukawa. Retrieved from https://idiyas.com/inventor/kazunari-furukawa

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 = 1.2

ph-index = 8

Forward Citations = 199(Granted Patents)

Company Filing History:

Yamaha Corporation

Years Active: 1990-1992

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5173575 - Acoustic apparatus (1992-12-22),

2. 5109422 - Acoustic apparatus (1992-04-28),

3. 5014320 - Driving apparatus, and control information storage body and protection (1991-05-07),

4. 5012890 - Acoustic apparatus (1991-05-07),

5. 5010977 - Acoustic apparatus with plural resonators having different resonance (1991-04-30),

6. 5004066 - Acoustic apparatus (1991-04-02),

7. 4997057 - Method and apparatus of expanding acoustic reproduction range (1991-03-05),

8. 4953655 - Acoustic apparatus (1990-09-04),

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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