Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7318232 | Optical disc and disc cartridge containing the same | Shin Masuhara | 2008-01-08 |
| 7303718 | Injection molding apparatus and injection molding method | Osamu Matsuura | 2007-12-04 |
| 7101171 | Molding die for disc substrate | Osamu Matsuura, Kazuhiro Miura, Hideaki Yoshimura | 2006-09-05 |
| 6866500 | Clamping apparatus | Kazuhiro Miura, Osamu Matsuura | 2005-03-15 |
| 6841103 | Injection molding apparatus and method | Hideaki Yoshimura | 2005-01-11 |
| 6576317 | Optical disc and injection compression molding die for producing the same | Hideaki Yoshimura | 2003-06-10 |
| 5875954 | Bonded pipe and method for bonding pipes | Tsukasa Maenosono, Michio Sato | 1999-03-02 |
| 5852329 | Optical disc molding device and molding method for optical disc | Nobuyuki Arakawa, Toshiyuki Kashiwagi, Asao Kurosu, Yuji Akiyama | 1998-12-22 |
| 5238393 | Multi-cavity injection molding apparatus for optical disk substrates | — | 1993-08-24 |