Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4783438 | Partially pressure-sensitive recording paper | Yoshio Okada, Yutaka Igari | 1988-11-08 |
| 4696856 | Pressure-sensitive recording material | Yoshio Okada, Nobuo Ahiko | 1987-09-29 |
| 4677449 | Partially pressure-sensitized recording paper and process for preparing the same | Yoshio Okada | 1987-06-30 |
| 4670344 | Microcapsule for pressure-sensitive recording paper and process of preparing same | Yoshio Okada | 1987-06-02 |
| 4654251 | Printing material set for preparing bar-code labels by pressure-sensitive printing method | Yoshio Okada, Nobuo Ahiko | 1987-03-31 |
| 4640847 | Partially pressure-sensitive recording paper | Yoshio Okada | 1987-02-03 |
| 4610927 | Microcapsules containing a hydrophobic, volatile core substance and their production | Masaaki Takahashi | 1986-09-09 |
| 4597993 | Partially pressure-sensitized recording paper and process for preparing the same | Yoshio Okada | 1986-07-01 |
| 4562116 | Microcapsule for pressure-sensitive recording paper and process for producing the same | Yoshio Okada | 1985-12-31 |
| 4557755 | Microencapsulated agricultural chemical and process of preparation thereof | Masaaki Takahashi, Yuji Hattori | 1985-12-10 |
| 4460722 | Process for producing a microcapsule | Yoshio Okada | 1984-07-17 |
| 4383705 | Pressure-sensitive recording material | Yoshio Okada, Kimio Okubo | 1983-05-17 |
| 4383706 | Pressure-sensitive recording paper | Yoshio Okada, Kimio Okubo | 1983-05-17 |
| 4217241 | Process for the microcapsulation of organophosphoric acid derivative-containing agricultural chemicals | Yoshio Okada, Kozyu Watanabe | 1980-08-12 |