Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6588236 | Method of processing a silica glass fiber by irradiating with UV light and annealing | Kazuya Saito, Takashi Miura, Shogo Nasuda | 2003-07-08 |
| 6581414 | Optical nonlinearity material and production method therefor | Takumi Fujiwara, Syuji Matsumoto | 2003-06-24 |
| 6564585 | Method for producing a second-order nonlinear glass material | Jun Abe, Seiki Ejima, Takumi Fujiwara | 2003-05-20 |
| 6466722 | Method of fabricating optical nonlinear thin film waveguide and optical nonlinear thin film waveguide | Takumi Fujiwara, Osamu Komeda | 2002-10-15 |
| 6380109 | Second-order nonlinear glass material | Jun Abe, Seiki Ejima, Takumi Fujiwara | 2002-04-30 |
| 6374026 | Manufacture of planar waveguide and planar waveguide | Takumi Fujiwara | 2002-04-16 |
| 6246815 | Grating element, light wavelength selection utilizing the same, and optical signal transmitting system | Takumi Fujiwara | 2001-06-12 |
| 6153546 | Ultralow-loss silica glass and optical fibers using the same | Kazuya Saitoh | 2000-11-28 |
| 4909896 | Process for producing contact lens | Takeyuki Sawamoto | 1990-03-20 |