Issued Patents All Time
Showing 101–118 of 118 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5444804 | Optical waveguide module | Dai Yui, Hiroshi Suganuma, Shigeru Semura | 1995-08-22 |
| 5438640 | Optical waveguide device for receiving functional component | Eisuke Sasaoka, Hiroo Kanamori, Hiroshi Suganuma, Tatsuhiko Saito | 1995-08-01 |
| 5385594 | Method for fabricating an optical waveguide | Hiroo Kanamori, Akira Urano, Haruhiko Aikawa, Chisai Hirose, Masahide Saito | 1995-01-31 |
| 5384874 | Optical fiber rod lens device and method of making same | Shigeru Hirai, Toshiaki Kakii, Hiroo Kanamori | 1995-01-24 |
| 5320658 | Process of drawing optical fiber | Yuichi Ohga, Hiroo Kanamori, Ichiro Yoshimura, Horoshi Yokota | 1994-06-14 |
| 5314518 | Method for producing glass preform for optical fiber | Masumi Ito, Sumio Hoshino | 1994-05-24 |
| 5306322 | Process for thermal treatment of glass fiber preform | Yuichi Ohga, Ichiro Tsuchiya, Hiroo Kanamori, Hiroshi Yokota, Michihisa Kyoto | 1994-04-26 |
| 5259856 | Method of producing glass preform in furnace for heating glass | Yuichi Ohga, Hiroo Kanamori, Ichiro Tsuchiya, Hiroshi Yokota | 1993-11-09 |
| 5243677 | Quartz optical waveguide and method for producing the same | Hiroo Kanamori, Masumi Ito, Haruhiko Aikawa, Sumio Hoshino | 1993-09-07 |
| 5193137 | Quartz optical waveguide and method for producing the same | Sumio Hoshino, Hiroo Kanamori, Masumi Ito, Haruhiko Aikawa | 1993-03-09 |
| 5179614 | Quartz optical waveguide and method for producing the same | Hiroo Kanamori, Masumi Ito, Haruhiko Aikawa, Sumio Hoshino | 1993-01-12 |
| 5176861 | Method of producing sheet made of a low-viscosity polyester resin | — | 1993-01-05 |
| 5133796 | Air-tight sintering furnace for the production of a quartz preform | Ichiro Tsuchiya, Masahide Saito, Toshimi Habasaki | 1992-07-28 |
| 5114338 | Furnace for heating highly pure quartz preform for optical fiber | Ichiro Tsuchiya, Masahide Saitoh, Yoichi Ishiguro | 1992-05-19 |
| 5106401 | Process for thermal treatment of glass fiber preform | Yuichi Ohga, Ichiro Tsuchiya, Hiroo Kanamori, Hiroshi Yokota, Michihisa Kyoto | 1992-04-21 |
| 5032079 | Furnace for producing high purity quartz glass preform | Ichiro Tsuchiya, Masahide Saitoh, Yoichi Ishiguro, Hiroo Kanamori | 1991-07-16 |
| 4952735 | Novel perfluoropolyether and process for producing the same | Kazuo Kobayashi, Masashi Fukazawa | 1990-08-28 |
| 4859299 | Novel perfluoropolyether and process for producing the same | Kazuo Kobayashi, Masashi Fukazawa | 1989-08-22 |