Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7260280 | Optical device | Masayuki Ichioka, Sunao Kurimura, Kenji Kitamura | 2007-08-21 |
| 7174059 | Optical device | Satoshi Oikawa, Futoshi Yamamoto, Sunao Kurimura, Kenji Kitamura | 2007-02-06 |
| 7009758 | Light control element | Futoshi Yamamoto, Takashi Shinriki, Yoshihiro Hashimoto | 2006-03-07 |
| 6539153 | Light limiter | Yasuhisa Taneda, Takaaki Ogata, Hirotoshi Nagata, Kaoru Higuma | 2003-03-25 |
| 6233385 | Light limiter | Yasuhisa Taneda, Takaaki Ogata, Hirotoshi Nagata, Kaoru Higuma | 2001-05-15 |
| 6218658 | Optical fuse | Yasuhisa Taneda, Takaaki Ogata, Hirotoshi Nagata, Kaoru Higuma | 2001-04-17 |
| 6134372 | Light intensity attenuator and attenuating method | Hirotoshi Nagata, Kaoru Higuma, Junichiro Minowa, Takaaki Ogata, Yasuhisa Taneda | 2000-10-17 |
| 5526448 | Optical waveguide modulator having a reduced D.C. drift | Hirotoshi Nagata, Junichiro Minowa, Manabu Yamada, Jamshid Nayyer, Shinichi Shimotsu +6 more | 1996-06-11 |