Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698145 | Method for producing Mn-Zn ferrites | Tetsu Narutani, Masakatsu Yamazaki, Keizou Okuno, Kouzou Fujiwara | 1997-12-16 |
| 5476605 | Mn-Zn ferrite | Naoe Hirai, Tohoru Murase, Teruo Mori | 1995-12-19 |
| 5200159 | Purified solution containing iron and manganese, and method producing thereof | Naoe Hirai, Tohoru Murase, Teruo Mori | 1993-04-06 |
| 5032367 | Method for producing powdered iron oxide | Naoe Hirai, Tohoru Murase, Teruo Mori | 1991-07-16 |
| 4254070 | Process for producing sintered body of ceramic composition for voltage non-linear resistor | Masatada Yodogawa, Matsuo Morisawa, Takashi Yamamoto | 1981-03-03 |