Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5306047 | Booklet album of photographs and binding apparatus therefor | Katsumi Otake, Shuichi Nakajima | 1994-04-26 |
| 5026236 | Photograph binding apparatus | Katsumi Otake, Takekazu Yanagimoto, Shuichi Nakajima | 1991-06-25 |
| 4993010 | Laser disk cassette selecting system | Osamu Nakajima, Takashi Miura | 1991-02-12 |