Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4776935 | High density record including carbon black particles purified by electrolysis | Akira Nishizawa, Kazuhira Namikawa, Toshiaki Hamaguchi, Mutsuaki Nakamura | 1988-10-11 |
| 4767486 | Method of manufacturing an electrostatic capacitance type information signal recording medium | Hiroshi Nakajima, Yoshihito Nakane, Osamu Narita, Koji Akita | 1988-08-30 |
| 4621007 | Information signal recording medium | Hiroshi Nakajima, Yoshihito Nakane, Osamu Narita, Akira Nishizawa, Fuminari Suzuki | 1986-11-04 |
| 4548739 | High density information records made of conductive resin compositions comprising a specifically-treated vinyl chloride-base resin | Mutsuaki Nakamura, Kazuhira Namikawa, Toshiaki Hamaguchi, Akio Kuroda, Akio Hata +1 more | 1985-10-22 |
| 4547545 | High density information record made of a conductive resin composition comprising a specific type of dimethylpolysiloxane | Toshiaki Hamaguchi, Kazuhira Namikawa, Mutsuaki Nakamura, Akio Kuroda, Yoshiaki Kudo | 1985-10-15 |