Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5405543 | Grease for copper contact | Sugako Otake, Takeshi Kojima, Eigo Mukasa | 1995-04-11 |
| 5364544 | Grease for a slide contact | Sugako Otake, Takeshi Kojima, Michio Aoki, Eigo Mukasa | 1994-11-15 |
| 5156756 | Lubricant for an electrical sliding contactor | Takeshi Kojima, Sugako Otake, Eigo Mukasa | 1992-10-20 |
| 4990272 | Grease composition | Masayuki Morita, Sugako Otake, Eigo Mukasa | 1991-02-05 |