Toshiba Patent for Printed Circuit Board and Disk Device Released

Strategic Insights -

Patent 12432854, describing a new design for a printed circuit board and a disk device, has been published online by the United States Patent and Trademark Office. The invention, developed by Yoshihiro Amemiya of Toshiba, aims to improve the design of printed circuit boards in disk devices by reducing the number of wirings and increasing the recording density.

Key Takeaways:

  • The new design, known as an "embodiment," is a printed circuit board that includes an insulating layer, a first conductive layer, a second conductive layer, and a conductive via.
  • The first conductive layer includes connection pads, a first mounting pad, a second mounting pad, and a second wiring connecting the first mounting pad and one of the connection pads.
  • The second conductive layer includes a third wiring connected to one of the connection pads, and the conductive via connects the second mounting pad and the third wiring.
  • The design includes a first reinforcing pattern in the first conductive layer and a third reinforcing pattern in the second conductive layer, which extend in a direction different from the third wiring.
  • The patent claims provide various examples of how the printed circuit board can be used in a hard disk drive (HDD) and other disk devices.
  • Specific claims of the patent include features such as the use of a mounting region for semiconductor elements, the arrangement of mounting pads, and the use of reinforcing patterns.
  • The invention is intended to improve the design of printed circuit boards in disk devices, reducing the number of wirings and increasing recording density.

Statistics:

  • Patent 12432854 was published online on September 30, 2025.
  • The patent was filed on March 6, 2023.
  • The patent has 11 claims.
  • The claims describe various features of the printed circuit board and disk device, such as the use of reinforcing patterns, mounting regions for semiconductor elements, and the arrangement of mounting pads.
  • The patent is owned by Kabushiki Kaisha Toshiba, a Japanese multinational electronics company.

Sources:

  • Amemiya, Yoshihiro. Printed circuit board and disk device. U.S. Patent Number 12432854, filed March 6, 2023, and published online on September 30, 2025. Patent URL (for desktop use only): https://ppubs.uspto.gov/pubwebapp/external.html?q=(12432854)&db=USPAT&type=ids