Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4353801 | Special solvent column for GPC and GPC method using the same | Nobutoshi Chikazumi, Hatuo Sugitani | 1982-10-12 |
| 4351910 | Expandable styrene series resin composition and process for production thereof | Hatuo Sugitani, Takeo Kudo, Hiromasa Kawai | 1982-09-28 |
| 4323664 | Process for producing granular polymer having uniform fine particle size | Nobutoshi Chikazumi | 1982-04-06 |