Hachioji, Japan

Sigeyuki Koga

This inventor holds 2 USPTO granted patents. Top assignee: Trio Kabushiki Kaisha. Active years: 1976-1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sigeyuki Koga. Retrieved from https://idiyas.com/inventor/sigeyuki-koga

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


% Patents Active = 100.0

Average Co-Inventor Count = 1.7

ph-index = 2

Forward Citations = 34(Granted Patents)


Location History:

  • Hachioji, JA (1976)
  • Tokyo, JP (1979)

Company Filing History:


Years Active: 1976-1979

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2 patents (USPTO):Explore Patents

Title: The Innovative Journey of Sigeyuki Koga

Introduction

Sigeyuki Koga, an esteemed inventor based in Hachioji, Japan, has made significant contributions to the audio technology industry. With a total of two patents to his name, Koga has demonstrated a remarkable ability to innovate and improve sound systems, enhancing the listening experience for users.

Latest Patents

Koga's latest innovations include a sophisticated speaker system and an oval dome type speaker. The speaker system features an intricate design comprising a speaker cabinet with a forward baffle plate, two side plates, and a rear plate. Notably, it incorporates a passive diaphragm and a uniquely positioned opening for sound outlet, which enhances sound quality. The oval dome type speaker, on the other hand, boasts a dome-shaped diaphragm that efficiently supports sound production, alongside a voice coil and magnetic means. These inventions reflect Koga's commitment to improving speaker functionality and design.

Career Highlights

Throughout his career, Sigeyuki Koga has been associated with Trio Kabushiki Kaisha, a prominent company known for its advancements in audio technology. His work has not only positioned him as a leading inventor but has also contributed to the company's reputation for cutting-edge innovation in sound engineering.

Collaborations

Koga has had the opportunity to collaborate with talented coworkers such as Yutaka Mae and Shiro Iwakura. Together, they have worked on various projects, sharing insights and expertise that have further propelled the development of innovative audio solutions.

Conclusion

In conclusion, Sigeyuki Koga stands out as a remarkable inventor in the audio technology field. His patents, particularly in speaker design, showcase his innovative spirit and dedication to enhancing sound experiences for users. As he continues his work at Trio Kabushiki Kaisha, the industry eagerly anticipates further contributions 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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