Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889837 | Semiconductive ceramic composition | Shuichi Itagaki, Masahiro Yahagi | 1989-12-26 |
| 4861736 | Semiconductive ceramic composition | Masahiro Yahagi, Shuichi Itagaki, Nobuaki Kikuchi | 1989-08-29 |
| 4854936 | Semiconductive ceramic composition and semiconductive ceramic capacitor | Shuichi Itagaki, Masahiro Yahagi, Kiyoshi Furukawa, Shinobu Fujiwara, Yasunobu Oikawa | 1989-08-08 |
| 4799127 | Semiconductive ceramic composition and semiconductor ceramic capacitor | Shuichi Itagaki, Masahiro Yahagi, Kiyoshi Furukawa, Shinobu Fujiwara, Yasunobu Oikawa | 1989-01-17 |