Yamagata, Japan

Hiroyuki Tomiyama

This inventor holds 5 USPTO granted patents and 2 published patent applications. Top assignees: Pioneer Corporation, Tohoku Corporation, Tohoku Pioneer Corporation. Active years: 2004-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Tomiyama. Retrieved from https://idiyas.com/inventor/hiroyuki-tomiyama

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

USPTO Granted Patents = 5 

% Patents Active = 40.0

Average Co-Inventor Count = 3.2

ph-index = 2

Forward Citations = 8(Granted Patents)


Location History:

  • Yamagata, JP (2004 - 2007)
  • Tendo, JP (2008)

Company Filing History:


Years Active: 2004-2008

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5 patents (USPTO):Explore Patents

Title: Hiroyuki Tomiyama - Innovator in Speaker Technology

Introduction

Hiroyuki Tomiyama is an inventor based in Tendo-shi, Japan. He is known for his innovative approach to speaker technology. Although he currently holds no granted patents, his work in the field of audio devices is noteworthy.

Latest Patent Applications

One of his significant patent applications is for a "SPEAKER DAMPER AND SPEAKER DEVICE." This invention involves a damper designed to vibratably support a voice coil to a static part. The damper consists of a first and a second annular-shaped damper, each with an inner and outer periphery. The dampers are designed to expand and contract in a direction that crosses the circumferential direction of their annular shape. The inner periphery of the second damper connects to the first damper, creating an annular space between them.

Conclusion

Hiroyuki Tomiyama's contributions to speaker technology, particularly through his innovative damper design, highlight his potential as an inventor in the audio industry. His work may pave the way for future advancements in speaker devices.

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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