Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863530 | Fc-Pt-Nb permanent magnet with an ultra-high coercive force and a large maximum energy product, and method for producing the same | by Hiroshi Matushima, executor, Kiyoshi Watanabe | 1989-09-05 |
| 4859252 | High damping capacity alloy and a process for producing the same | Showhachi Sawaya, Masakatsu Hinai | 1989-08-22 |
| 4834813 | Wear-resistant alloy of high permeability and methods of producing the same | Yuetsu Murakami | 1989-05-30 |
| 4830685 | Wear-resistant alloy of high permeability and method of producing the same | Yuetsu Murakami | 1989-05-16 |
| 4814027 | Fe-Pt-Nb permanent magnet with an ultra-high coercive force and a large maximum energy product | Kiyoshi Watanabe, Hiroshi Matushima, executor | 1989-03-21 |