Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7013676 | Press molding apparatus | Tadayuki Fujimoto, Shinichiro Hirota, Hiroyuki Sakai, Hidemi Tajima | 2006-03-21 |
| 6813906 | Method and apparatus for preparation of molded glass | Shinichiro Hirota | 2004-11-09 |
| 6370915 | Method for supplying glass molding material to molds, and method for manufacturing glass optical elements | Tadayuki Fujimoto, Shinichiro Hirota | 2002-04-16 |
| 6141991 | Press molding apparatus for glass optical elements and molding method for glass optical elements | Tadayuki Fujimoto, Shinichiro Hirota, Shinji Hada | 2000-11-07 |
| 6070436 | Manufacturing method for molded glass articles | Shinichiro Hirota, Ken Uno, Kohichi Saitoh | 2000-06-06 |
| 5987922 | Manufacturing method for molded glass articles | Shinichiro Hirota, Ken Uno, Kohichi Saitoh | 1999-11-23 |
| 5114455 | Mold for producing lens, using mold recesses to aid in lens release | Shinichiro Hirota, Kenji Okamura | 1992-05-19 |
| 4915720 | Method of and apparatus for molding glass articles | Shinichiro Hirota, Tadayuki Fujimoto | 1990-04-10 |
| 4836838 | Apparatus for molding glass articles | Shinichiro Hirota, Tadayuki Fujimoto | 1989-06-06 |
| 4836840 | Press-molding device for lenses | Shinichiro Hirota | 1989-06-06 |
| 4778505 | Method of molding glass body | Shinichiro Hirota, Tetsuro Izumitani | 1988-10-18 |
| 4738703 | Method of molding optical lenses | Tetsuro Izumitani, Shinichiro Hirota, Helmuth E. Meissner | 1988-04-19 |