Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656350 | Coil impregnant of epoxy resin from polyhydric phenol mixture | Toru Koyama, Hirokazu Takasaki, Koo Honjoo, Shinichi Toyoda, Hiroshi Suzuki +1 more | 1997-08-12 |
| 5075159 | Electrically insulated coil | Tohru Koyama, Koo Honjyo, Noriyuki Kinjo, Ikushi Kano, Syoichi Maruyama | 1991-12-24 |