Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698145 | Method for producing Mn-Zn ferrites | Tetsu Narutani, Keizou Okuno, Katsunobu Okutani, Kouzou Fujiwara | 1997-12-16 |
| 5368763 | Low power loss Mn-Zn ferrites | Tetsu Narutani, Hideaki Kobiki | 1994-11-29 |
| 5190740 | Method producing composite oxides for use as starting materials for producing ferrites | Tetsu Narutani, Hidekaku Yoshimatsu, Masao Tsuzaki, Fumiaki Yoshikawa, Katashi Takaki | 1993-03-02 |
| 5143638 | Low power loss Mn-Zn ferrites | Tetsu Narutani, Hideaki Kobiki | 1992-09-01 |