Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7094974 | Polymer SP insulator | Yasushi Ohkawa | 2006-08-22 |
| 6472604 | Seal construction of polymer insulator | Takashi Imakoma | 2002-10-29 |
| 6055717 | Securing method of polymer insulator and die used for this method | Yasushi Ohkawa, Tomio Suzuki, Eiji Kitagami | 2000-05-02 |
| 5814728 | Nondestructive inspection method of polymer insulator and apparatus for performing the same | Yasushi Okawa, Tomio Suzuki, Masahiro Hori | 1998-09-29 |
| 4658092 | Explosion-preventing suspension insulator | Shigeo Mori, Hiroshi Nozaki | 1987-04-14 |