Tokorozawa, Japan

Junichi Onishi

This inventor holds 2 USPTO granted patents. Top assignee: Pioneer Electronic Corporation. Active years: 1981-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Junichi Onishi. Retrieved from https://idiyas.com/inventor/junichi-onishi-bjbxydqw

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 1.6

ph-index = 1


Location History:

  • Tokorozawa, JP (1981)
  • Saitama, JP (1987)

Company Filing History:


Years Active: 1981-1987

Loading Chart...
2 patents (USPTO):Explore Patents

Title: Junichi Onishi: Innovator in Audio Technology

Introduction

Junichi Onishi is a notable inventor based in Tokorozawa, Japan. He has made significant contributions to the field of audio technology, particularly through his innovative designs in cassette tape decks and tone arm damping devices. With a total of 2 patents, Onishi's work reflects a commitment to enhancing audio equipment functionality and user experience.

Latest Patents

Onishi's latest patents include a cassette tape deck and a tone arm damping device. The cassette tape deck is designed to be easily miniaturized while maintaining a reduced manufacturing cost. It features a head stand that can move in a direction perpendicular to the tape running direction, with a magnetic head that rotates between two positions. This design incorporates a tape-running-direction switching unit that selects the tape running direction based on the head's angular position. Additionally, the head stand driving mechanism and head rotating mechanism are powered by a single drive source, showcasing an efficient design.

The tone arm damping device provides damping for both horizontal and vertical vibration forces using a single damping mechanism. It includes a gimbal-type support structure with first and second rotatable bodies. The inner rotatable body contains an annular reservoir of damping fluid, and a fluted damping ring extends into this reservoir. The extent of the damping ring's immersion can be adjusted, allowing for customizable damping force.

Career Highlights

Junichi Onishi is associated with Pioneer Electronic Corporation, a company known for its innovative audio and video products. His work at Pioneer has allowed him to develop technologies that enhance the quality and performance of audio equipment.

Collaborations

Onishi has collaborated with notable coworkers such as Tetsuro Kamimura and Itsuo Kato. Their combined expertise has contributed to the advancement of audio technology within the company.

Conclusion

Junichi Onishi's contributions to audio technology through his innovative patents demonstrate his dedication to improving user experience in audio equipment. His work continues to influence the industry and inspire future innovations.

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]
Loading…