Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4411699 | Desensitizer compositions | Ken Iwakura, Nobuyoshi Sekikawa | 1983-10-25 |
| 4411700 | Desensitizer compositions | Nobuyoshi Sekikawa, Ken Iwakura, Masato Satomura | 1983-10-25 |
| 4411452 | Pressure-sensitive recording material | — | 1983-10-25 |
| 4374671 | Color developer, recording unit having a layer of the color developer and process for production thereof | Takao Hayashi, Hajime Kato, Makoto Yoshida | 1983-02-22 |
| 4337280 | Desensitizer composition | Teruo Kobayashi, Hiroharu Matsukawa | 1982-06-29 |
| 4263047 | Color developing ink | Hiroharu Matsukawa | 1981-04-21 |
| 4262936 | Color developing ink containing aliphatic esters with 8-25 carbon atoms | — | 1981-04-21 |