Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4548801 | Plate-like barium ferrite particles for use in magnetic recording and process for producing the same | Norimichi Nagai, Masao Kiyama, Toshio Takada | 1985-10-22 |
| 4539129 | Barium ferrite particles and process for producing said particles | Norimichi Nagai, Masao Kiyama, Toshio Takada | 1985-09-03 |
| 4529524 | Process for producing plate-like barium ferrite particles for magnetic recording | Norimichi Nagai, Masao Kiyama, Toshio Takada | 1985-07-16 |
| 4251592 | Stabilization treatment of acicular ferromagnetic iron or iron-alloy particles against the oxidation thereof | Atushi Takedoi, Goro Matsui, Koji Toda | 1981-02-17 |