Ohrui; Tetsuya
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ohrui; Tetsuya.The latest application filed is for "purification of crude acrylic acid".
- Ohrui; Tetsuya - Niihama JP
| Patent | Date |
|---|---|
| Purification of crude acrylic acid Grant 4,199,410 - Ohrui , et al. April 22, 1 | 1980-04-22 |
| Method for removing harmful materials from waste gas Grant 3,988,423 - Ohrui , et al. October 26, 1 | 1976-10-26 |
| Process for continuously synthesizing acrylic acid esters Grant 3,875,212 - Ohrui , et al. April 1, 1 | 1975-04-01 |
| Process For Purifying Acrylic Acid By Plural Stage Distillation And An Extraction Grant 3,859,175 - Ohrui , et al. January 7, 1 | 1975-01-07 |
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