Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5959142 | Process for refining methacrylic acid | Kazuo Wakimura, Tadaharu Hase, Yoshihiro Sezaki, Koji Fujita, Takeshi Isobe +1 more | 1999-09-28 |
| 4275174 | Neutron shielding polymer composition and a process for producing the same | Hirozo Segawa | 1981-06-23 |