Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6145344 | Method for the preparation of a porous silica glass preform for optical fibers | Hiroshi Oyamada, Hiroyuki Koide, Goh Ogino | 2000-11-14 |
| 6134922 | Method for drawing a glass ingot | Tadakatsu Shimada | 2000-10-24 |
| 6131414 | Method for making a preform for optical fibers by drawing a mother ingot | Yoshiaki Shimizu, Tadakatsu Shimada | 2000-10-17 |
| 5958102 | Apparatus and method for making an optical fiber preform using a correction pass | Tadakatsu Shimada | 1999-09-28 |
| 5683486 | Method of forming a fiber preform to minimize shifts of the zero-dispersion wavelength | Hiroshi Oyamada, Go Ogino | 1997-11-04 |
| 5425795 | Method for pulling-up a porous silica glass preform | Hiroyuki Koide, Masami Terashima, Kazuhiro Hamaguchi | 1995-06-20 |
| 5423898 | Method of lowering and raising a optical fiber preform in a sintering furnace | Masami Terashima, Hiroyuki Koide, Kazuhiro Hamaguchi | 1995-06-13 |
| 5366531 | Preparation of a preform of optical fibers | Hiroyuki Koide, Hitoshi IINUMA | 1994-11-22 |