Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7492975 | Optical switch, optical modulator and wavelength variable filter | Seiji Toyoda, Kazuo Fujiura, Masahiro Sasaura, Makoto Shimokozono, Tadayuki Imai +4 more | 2009-02-17 |
| 7358036 | Photosensitive composition for manufacturing optical waveguide, production method thereof and polymer optical waveguide pattern formation method using the same | Seiji Toyoda, Saburo Imamura, Satoru Tomaru, Takashi Kurihara, Shoichi Hayashida +1 more | 2008-04-15 |
| 7356227 | Optical switch, optical modulator and wavelength variable filter | Seiji Toyoda, Kazuo Fujiura, Masahiro Sasaura, Makoto Shimokozono, Tadayuki Imai +4 more | 2008-04-08 |
| 7340116 | Optical switch, optical modulator and wavelength variable filter | Seiji Toyoda, Kazuo Fujiura, Masahiro Sasaura, Makoto Shimokozono, Tadayuki Imai +4 more | 2008-03-04 |
| 7336854 | Optical switch, optical modulator and wavelength variable filter | Seiji Toyoda, Kazuo Fujiura, Masahiro Sasaura, Makoto Shimokozono, Tadayuki Imai +4 more | 2008-02-26 |
| 7110652 | Optical waveguide and method of manufacture | Masahiro Sasaura, Kazuo Fujiura, Tadayuki Imai, Shogo Yagi, Takashi Kurihara +3 more | 2006-09-19 |
| 6996321 | Optical waveguide and method of manufacture | Masahiro Sasaura, Kazuo Fujiura, Tadayuki Imai, Shogo Yagi, Takashi Kurihara +3 more | 2006-02-07 |
| 6933097 | Photosensitive composition for manufacturing optical waveguide, production method thereof and polymer optical waveguide pattern formation method using the same | Seiji Toyoda, Saburo Imamura, Satoru Tomaru, Takashi Kurihara, Shoichi Hayashida +1 more | 2005-08-23 |
| 6806040 | Photosensitive composition for manufacturing optical waveguide, production method thereof and polymer optical waveguide pattern formation method using the same | Seiji Toyoda, Saburo Imamura, Satoru Tomaru, Takashi Kurihara, Shoichi Hayashida +1 more | 2004-10-19 |
| 6795232 | Wavelength converter | Kazuo Fujiura, Shogo Yagi, Tadayuki Imai, Masahiro Sasaura, Takashi Kurihara +3 more | 2004-09-21 |
| 6792189 | Optical waveguide and method of manufacture | Masahiro Sasaura, Kazuo Fujiura, Tadayuki Imai, Shogo Yagi, Takashi Kurihara +3 more | 2004-09-14 |
| 6537723 | Photosensitive composition for manufacturing optical waveguide, production method thereof and polymer optical waveguide pattern formation method using the same | Seiji Toyoda, Saburo Imamura, Satoru Tomaru, Takashi Kurihara, Shoichi Hayashida +1 more | 2003-03-25 |
| 6496624 | Optical waveguide device for optical wiring and manufacturing method therefor | Makoto Hikita, Satoru Tomaru, Saburo Imamura, Michiyuki Amano, Shun-ichi Tohno | 2002-12-17 |
| 6226429 | Manufacturing method for optical waveguide device | Makoto Hikita, Satoru Tomaru, Saburo Imamura, Michiyuki Amano, Shun-ichi Tohno | 2001-05-01 |