Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5368887 | Process for producing thin glass film by sol-gel method | Sumio Hoshino, Hiroo Kanamori | 1994-11-29 |
| 5360147 | Sliding nozzle for molten steel receiving vessel | Takafumi Aoki, Noriyoshi Naruse | 1994-11-01 |
| 5330548 | Method for producing glass preform for optical fiber | Toshio Danzuka, Ichiro Tsuchiya | 1994-07-19 |
| 5314518 | Method for producing glass preform for optical fiber | Sumio Hoshino, Shinji Ishikawa | 1994-05-24 |
| 5243677 | Quartz optical waveguide and method for producing the same | Hiroo Kanamori, Shinji Ishikawa, Haruhiko Aikawa, Sumio Hoshino | 1993-09-07 |
| 5236482 | Method for producing glass preform for optical fiber | Toshio Danzuka, Tatsuhiko Saito, Ichiro Tsuchiya | 1993-08-17 |
| 5224185 | Optical switch | Sumio Hoshino, Hiroo Kanamori | 1993-06-29 |
| 5207813 | Method for producing glass article | Toshio Danzuka, Masahiro Takagi, Hiroshi Yokota | 1993-05-04 |
| 5202947 | Optical fiber component optical coupler and method of producing thereof | Sumio Hoshino, Masayuki Shigematsu, Hiroo Kanamori, Hisasi Izumita | 1993-04-13 |
| 5196383 | Method for producing rare earth element-doped glass by sol-gel process | Tatsuhiko Saitoh, Hiroshi Yokota | 1993-03-23 |
| 5193137 | Quartz optical waveguide and method for producing the same | Sumio Hoshino, Hiroo Kanamori, Shinji Ishikawa, Haruhiko Aikawa | 1993-03-09 |
| 5179614 | Quartz optical waveguide and method for producing the same | Hiroo Kanamori, Shinji Ishikawa, Haruhiko Aikawa, Sumio Hoshino | 1993-01-12 |
| 5128299 | Process for producing crystalline oxide of vanadium-phosphorus system | Masakatsu Hatano, Masayoshi Murayama, Kenji Shima | 1992-07-07 |
| 5021384 | Process for producing crystalline oxide of vanadium-phosphorus system and catalyst containing the crystalline oxide | Masakatsu Hatano, Masayoshi Murayama, Kenji Shima | 1991-06-04 |
| 4978378 | Method for producing glass preform for optical fiber | Hiroshi Yokota, Toshio Danzuka, Masahiro Takagi | 1990-12-18 |