Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8789393 | Optical fiber preform, method of manufacturing optical fiber preform, and method of manufacturing optical fiber | Akihiro Kanao, Hideya Moridaira | 2014-07-29 |
| 8778719 | Linear semiconductor substrate, and device, device array and module, using the same | Toshihiro Nakamura, Hisashi Koaizawa, Kenkichi Suzuki, Hiroshi Kuraseko, Michio Kondo | 2014-07-15 |
| 8658257 | Method of manufacturing optical fiber | Hiroshi Kuraseko, Yasuo Nakajima, Minoru KASAHARA, Keisuke Ui | 2014-02-25 |
| 8141392 | Optical fiber drawing methods and drawing furnaces | Takashi Suzuki, Yoshiyuki Sakata | 2012-03-27 |
| 8039927 | Linear semiconductor substrate, and device, device array and module, using the same | Toshihiro Nakamura, Hisashi Koaizawa, Kenkichi Suzuki, Hiroshi Kuraseko, Michio Kondo | 2011-10-18 |
| 7985494 | Glass substrate for magnetic disk and magnetic disk apparatus | Yasuhiro Naka | 2011-07-26 |
| 7976967 | Glass substrate for magnetic disk apparatus | Hiroshi Kuraseko, Yasuhiro Naka | 2011-07-12 |
| 7972715 | Glass substrate and thermal-assisted magnetic recording disk | Norihisa Shibayama, Yasuhiro Naka | 2011-07-05 |
| 7135235 | Optical fiber preform and the method of producing the same | Yukio Koumura, Yasuhiro Naka | 2006-11-14 |
| 6827883 | Optical fiber preform and the method of producing the same | Yukio Koumura, Yasuhiro Naka | 2004-12-07 |
| 6647748 | Device for continuously twisting an optical fiber | — | 2003-11-18 |
| 6543257 | Dehydration and sintering apparatus for porous optical fiber preform | Hisashi Koaizawa, Junichi Takeda, Satoshi Sugiyama, Yoshiyuki Sakamoto | 2003-04-08 |
| 6284046 | Optical fiber resin coating apparatus | Hisashi Koaizawa | 2001-09-04 |
| 6192715 | Furnace for forming optical fiber | Tetsuya Kumada, Yoshiyuki Sakata, Hisashi Koaizawa | 2001-02-27 |
| 5449408 | Optical fiber coating apparatus and positioning method thereof | Hisashi Koaizawa, Yukio Komura | 1995-09-12 |