Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854936 | Semiconductive ceramic composition and semiconductive ceramic capacitor | Shuichi Ono, Shuichi Itagaki, Masahiro Yahagi, Kiyoshi Furukawa, Yasunobu Oikawa | 1989-08-08 |
| 4799127 | Semiconductive ceramic composition and semiconductor ceramic capacitor | Shuichi Ono, Shuichi Itagaki, Masahiro Yahagi, Kiyoshi Furukawa, Yasunobu Oikawa | 1989-01-17 |
| 4692422 | High dielectric porcelain composition and method of reducing sintering temperature thereof | Atsushi Satoh, Tetsuya Hattori, Junichi Sutoh | 1987-09-08 |
| 4447549 | Non-linear dielectric element | Sho Masujima, Masahide Shibuya, Iwaya Shoichi, Kenichi Umeda, Yasunobu Oikawa +3 more | 1984-05-08 |
| 4428661 | Magnetic brush type developing device | Keiji Masuda, Kenichi Matsumoto | 1984-01-31 |
| 4363088 | Electric power source units | Hirotaka Yamamoto, Minoru Obara | 1982-12-07 |
| 4287075 | High dielectric constant type ceramic composition consisting essentially of Pb(Fe.sub.1/2 Nb.sub.1/2)O.sub.3 -Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3 -Pb(Mg.sub.1/2 W.sub.1/2)O.sub.3 | Kiyoshi Furukawa, Nobuaki Kikuchi, Osamu Iizawa, Hitoshi Tanaka, Hisayoshi Ueoka | 1981-09-01 |
| 4265668 | High dielectric constant type ceramic composition | Kiyoshi Furukawa, Nobuaki Kikuchi, Osamu Iizawa, Hitoshi Tanaka | 1981-05-05 |
| 4235635 | High dielectric constant type ceramic composition | Osamu Iizawa, Hisayoshi Ueoka, Kiyoshi Furukawa, Nobuaki Kikuchi, Hitoshi Tanaka | 1980-11-25 |
| 4216102 | High dielectric constant type ceramic composition consisting essentially of Pb(Fe.sub.1/2 Nb.sub.1/2)O.sub.3 -Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3 | Kiyoshi Furukawa, Nobuaki Kikuchi, Osamu Iizawa, Hitoshi Tanaka, Hisayoshi Ueoka | 1980-08-05 |
| 4216103 | High dielectric constant type ceramic composition consisting essentially of Pb(Fe.sub.1/2 Nb.sub.1/2)O.sub.3 -Pb(Mg.sub.1/3 Ta.sub.2/3)O.sub.3 | Kiyoshi Furukawa, Nobuaki Kikuchi, Osamu Iizawa, Hitoshi Tanaka, Hisayoshi Ueoka | 1980-08-05 |