Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7551343 | Magneto-optical device and manufacturing method thereof | Katsuhiro Iwasaki | 2009-06-23 |
| 7336418 | Optical attenuator | Hirotaka Kawai, Isao Kojima, Hidenori Nakata, Teruhisa Sahashi | 2008-02-26 |
| 7280264 | Magneto-optical device | Yuji Goto, Mikio Kitaoka, Tsugio Tokumasu, Toshihiko Watanabe, Akitoshi Mesaki +3 more | 2007-10-09 |
| 7009767 | Polarization separating/synthesizing element and optical device using it | Masaharu Hoshikawa | 2006-03-07 |
| 6417952 | Faraday rotation angle varying device | Hirotaka Kawai | 2002-07-09 |
| 6288827 | Faraday rotator | Hirotaka Kawai, Hidenori Nakada, Nobuhiro Fukushima | 2001-09-11 |
| 6108120 | Faraday rotation angle varying apparatus | Hirotaka Kawai, Youichi Suzuki, Hidenori Nakada | 2000-08-22 |
| 5965287 | Magneto-optical element material and Faraday element using the same | Toshiyasu Suzuki, Hirotaka Kawai | 1999-10-12 |
| 5566017 | Material for magneto-optical element and faraday rotator using the same | Toshiyasu Suzuki, Hirotaka Kawai | 1996-10-15 |
| 5547613 | Magneto-optical element material formed of magnetic garnet single crystals | Hirotaka Kawai, Shinzo Fujii | 1996-08-20 |
| 5521741 | Polarization plane switch and optical switching device using the same | Yoichi Suzuki, Tomokazu Imura, Tsugio Tokumasu, Hiroshi Rikukawa | 1996-05-28 |