Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7417423 | Method of testing a magnetic head for eliminating defective magnetic heads | — | 2008-08-26 |
| 6771024 | Fluorescent lamp | Toshiyoshi Oga, Masaru Saitoh, Toshifumi Kondoh | 2004-08-03 |