Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812262 | Fire-retardant electric device | Akira Shinzawa | 1989-03-14 |
| 4566994 | Flame-retardant electrical insulating oil composition | Hiroshi Hasegawa, Akira Shinzawa | 1986-01-28 |
| 4324933 | Electrical insulating oil compositions | Shoji Kimura, Noboru Ishida, Midori Masunaga | 1982-04-13 |
| 4189391 | Electrical insulating oil compositions | Shoji Kimura, Noboru Ishida, Midori Masunaga | 1980-02-19 |