Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5229449 | Copolymer of polymerizable components in naphtha oil and maleic anhydride, process for producing said copolymer, and derivatives thereof | Norihide Enomoto, Yoshihiro Naruse, Keiji Sugiura, Masato Takagi | 1993-07-20 |
| 5191049 | Copolymer of polymerizable components in naphtha oil and maleic anhydride, process for producing said copolymer, and derivatives thereof | Norihide Enomoto, Yoshihiro Naruse, Keiji Sugiura, Masato Takagi | 1993-03-02 |
| 5179170 | Dispersant and cement admixture | Norihide Enomoto, Yoshihiro Naruse, Masato Takagi, Keiji Sugiura | 1993-01-12 |
| 5166275 | Copolymer of polymerizable components in naphtha oil and maleic anhydride, process for producing said copolymers, and derivatives thereof | Norihide Enomoto, Yoshihiro Naruse, Keiji Sugiura, Masato Takagi | 1992-11-24 |