Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6265396 | .beta.-lactam compounds and process for preparing the same | Makoto Sunagawa, Hiroshi Yamaga, Hisatoshi Shinagawa | 2001-07-24 |
| 5227376 | .beta.-lactam compounds and their production | Makoto Sunagawa, Akira Sasaki, Hiroshi Yamaga, Masatomo Fukasawa | 1993-07-13 |
| 4557982 | Magnetic recording flexible disc | Kinji Hasegawa, Masahiro Hosoi | 1985-12-10 |
| 4294791 | Process for producing thermoplastic resin film of markedly reduced thickness unevenness | Yoshiaki Tanihara, Takashi Ikeda, Ituo Ogiuchi | 1981-10-13 |