Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6009728 | Die for press-molding optical elements | Yoshinari Kashiwagi, Makoto Umetani, Hidenao Kataoka, Kenji Inoue, Shoji Nakamura | 2000-01-04 |
| 6003336 | Method of manufacturing a die for press-molding optical elements | Yoshinari Kashiwagi, Makoto Umetani, Hidenao Kataoka, Kenji Inoue, Shoji Nakamura | 1999-12-21 |
| 5759221 | Method of press molding glass optical elements | Yoshinari Kashiwagi, Makoto Umetani, Hidenao Kataoka, Kenji Inoue, Shoji Nakamura | 1998-06-02 |
| 5700307 | Die for press-molding optical elements | Yoshinari Kashiwagi, Makoto Umetani, Hidenao Kataoka, Kenji Inoue, Shoji Nakamura | 1997-12-23 |