Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803252 | Particles of crosslinked polymer prepared by emulsion polymerization in the absence of dispersion stabilizer | Akio Kashihara, Keizou Ishii, Hiromichi Kayano | 1989-02-07 |