Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5102719 | Ceramic, circuit substrate and electronic circuit substrate by use thereof and process for producing ceramic | Motoo Kumagai, Keiichi Kato, Matsato Nagano | 1992-04-07 |
| 5077632 | Ceramic, circuit substrate and electronic circuit substrate by use thereof and process for producing ceramic | Motoo Kumagai, Keiichi Kato, Masato Nagano | 1991-12-31 |
| 5041327 | Ceramic and circuit substrate and electronic circuit substrate by use thereof | Motoo Kumagai, Keiichi Kato, Masato Nagano | 1991-08-20 |
| 5034260 | Ceramic and circuit substrate and electronic circuit substrate by use thereof | Motoo Kumagai, Keiichi Kato, Masato Nagano | 1991-07-23 |
| 5006957 | Semiconductor porcelain substrate, dielectric porcelain substrate and capacitor employing the composition | Motoo Kumagai, Keiichi Kato, Humio Takeuti, Masato Nagano | 1991-04-09 |
| 4992399 | Ceramic, circuit substrate and electronic circuit substrate by use thereof and process for producing ceramic | Motoo Kumagai, Keiichi Kato, Masato Nagano | 1991-02-12 |
| 4990323 | Composition for reduction-reoxidation type semiconductive ceramic capacitor | Kazuhito Narumi, Fumio Takeuchi | 1991-02-05 |
| 4987107 | Ceramic composition for reduction-reoxidation type semiconductive capacitor | Kazuhito Narumi, Fumio Takeuchi | 1991-01-22 |
| 4952538 | Ceramic and circuit substrate and electronic circuit substrate by use thereof | Motoo Kumagai, Keiichi Kato, Masato Nagano | 1990-08-28 |
| 4943469 | Ceramic, circuit substrate and electronic circuit substrate by use thereof and process for producing ceramic | Motoo Kumagai, Keiichi Kato, Masato Nagano | 1990-07-24 |
| 4942079 | Ceramic and circuit substrate and electronic circuit substrate by use thereof | Motoo Kumagai, Keiichi Kato, Masato Nagano | 1990-07-17 |
| 4736230 | Composition for semiconductor porcelain, and semiconductor porcelain and capacitor by use of same | Motoo Kumagai, Masato Nagano | 1988-04-05 |