Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849133 | PTC compositions | Takahisa Akatsuka, Osamu Inoue, Jiro Toyama | 1989-07-18 |
| 4821153 | Electrolyte for electrolytic capacitors and electrolytic capacitor using the electrolyte | Yoshiteru Kuwae, Katsuji Shiono, Takaaki Kishi, Hideki Shimamoto, Hisao Nagara +1 more | 1989-04-11 |