This inventor holds 1 USPTO granted patent. Top assignee: Hitachi Metals, Ltd.. Active years: 1983.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1983
Title: Shinya Okayasu: Inventor of a Rectangular Magnetic Circuit for Speakers
Introduction
Shinya Okayasu is an inventor associated with Saitama, Japan, and Hitachi Metals, Ltd. His recorded patent concerns a magnetic circuit designed for a loudspeaker.
Latest Patents
Okayasu is credited with 1 patent, titled “Rectangular Magnetic Circuit for Speaker.” The invention describes a substantially rectangular parallelepiped yoke with a hollow passing through two opposing sides. A sintered magnet of specified size and composition is mounted inside the yoke, with a recoil permeance coefficient between 1.0 and 1.2. A polepiece connected to the magnet forms a magnetic air gap with the end of a through-hole in the yoke’s top face, allowing a movable coil to operate within the magnetic circuit.
Career Highlights
Okayasu’s listed invention reflects work on loudspeaker components, particularly the arrangement of the yoke, magnet, polepiece, and magnetic air gap. His company affiliation is Hitachi Metals, Ltd.
Collaborations
Noriaki Goshi and Motoharu Shimizu are identified as Okayasu’s coworkers.
Conclusion
Shinya Okayasu’s recorded patent presents a rectangular magnetic circuit design for loudspeakers, highlighting his contribution to speaker technology through his work associated with Hitachi Metals, Ltd.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile