Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6670030 | Biaxially oriented laminate polyester film for magnetic recording medium | Toshikazu Uchida, Mitsuo Tojo, Toshifumi Osawa, Akira Kameoka, Masahiko Kosuge | 2003-12-30 |
| 6525165 | Trimethylene-2, 6-naphthalene dicarboxylate (co)polymer film, quaternary phosphonium sulfonate copolymer and compositions thereof | Ryoji Tsukamoto, Takafumi Kudo, Masahiko Kosuge, Hideshi Kurihara, Shinichi Kawai +4 more | 2003-02-25 |
| 6228975 | Polyalkylene naphthalate, composition thereof, film, and processes for producing these | Masahiko Kosuge, Hideshi Kurihara | 2001-05-08 |