Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866393 | Method of diagnosing the deterioration of a zinc oxide type lightning arrester utilizing vector synthesis | Hiromi Iwai, Hiroshi Asaga, Nobuyuki Takao, Satoru Shiga, Yoshihiro Tanabe | 1989-09-12 |