Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835508 | Zinc oxide type lightning-conducting element | Shoji Seike, Takao Totoki | 1989-05-30 |
| 4796149 | Lightning arrestor insulator | Shoji Seike, Takao Totoki | 1989-01-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835508 | Zinc oxide type lightning-conducting element | Shoji Seike, Takao Totoki | 1989-05-30 |
| 4796149 | Lightning arrestor insulator | Shoji Seike, Takao Totoki | 1989-01-03 |