Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5355351 | Underwater low-frequency sound producer using a rare earth alloy | Takashi Yoshikawa, Akiyoshi Kawamori, Hiroshi Kamata, Iwao Nakano, Yasutaka Amitani | 1994-10-11 |
| 5276574 | Magnetic head | Mitsuo Abe, Yukiko Ogura, Masakatsu Saito | 1994-01-04 |