Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656350 | Coil impregnant of epoxy resin from polyhydric phenol mixture | Toru Koyama, Chikashi Kanno, Hirokazu Takasaki, Koo Honjoo, Hiroshi Suzuki +1 more | 1997-08-12 |
| 4269894 | Electric windings and production thereof characterized by the use of a condensation type silicon resin for combination with an addition type silicon resin | Masahiko Sakai, Toshikazu Narahara, Takeshi Hakamada, Tomoya Tsunoda | 1981-05-26 |
| 4222802 | Process for producing electric windings | Masahiko Sakai, Toshikazu Narahara, Toru Koyama, Kazuo Goto | 1980-09-16 |