Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12105326 | Optical multiplexer reduced in background light | Koichi HORII, Toshio Katsuyama, Shoji Yamada, Akira Nakao | 2024-10-01 |
| 10195765 | Gypsum board manufacturing method and manufacturing device | Tsuyoshi Yoshida, Tomohiro Noguchi | 2019-02-05 |
| 8615146 | Planar optical waveguide | Mitsuru Nagano, Masayuki Okuno, Masahiko Naito, Akihito Doi, Daisuke Ogawa +1 more | 2013-12-24 |
| 7974502 | Optical module and optical switch | Shinji Mino, Takeshi Kitagawa, Motohaya Ishii, Takashi Yamada, Masayuki Okuno +2 more | 2011-07-05 |
| 7206473 | Optical module and optical switch constituting the same | Shinji Mino, Takeshi Kitagawa, Motohaya Ishii, Takashi Yamada, Masayuki Okuno +2 more | 2007-04-17 |
| 7177495 | Optical module and optical switch constituting the same | Shinji Mino, Takeshi Kitagawa, Motohaya Ishii, Takashi Yamada, Masayuki Okuno +2 more | 2007-02-13 |
| 7116859 | Optical module and optical switch constituting the same | Shinji Mino, Takeshi Kitagawa, Motohaya Ishii, Takashi Yamada, Masayuki Okuno +2 more | 2006-10-03 |
| 6999652 | Optical module and optical switch constituting the same | Shinji Mino, Takeshi Kitagawa, Motohaya Ishii, Takashi Yamada, Masayuki Okuno +2 more | 2006-02-14 |
| 6724957 | Optical filter | Takashi Saida, Takayuki Mizuno, Katsunari Okamoto, Koichi Takiguchi, Manabu Oguma | 2004-04-20 |
| 6606433 | Optical multi/demultiplexer | Manabu Oguma, Kaname Jinguji, Tsutomu Kitoh, Yoshinori Hibino | 2003-08-12 |
| 6546161 | No polarization dependent waveguide type optical circuit | Masayuki Okuno, Yoshinori Hibino, Yasuyuki Inoue | 2003-04-08 |
| 6320888 | Frequency stabilized laser and method for preparing thereof | Takuya Tanaka, Hiroshi Takahashi, Akimasa Kaneko, Yasuyuki Inoue | 2001-11-20 |
| 6229938 | WDM filter | Yoshinori Hibino, Makoto Abe, Takuya Tanaka, Shin Kamei, Akimasa Kaneko | 2001-05-08 |
| 5943452 | Arrayed-waveguide grating | Katsunari Okamoto, Hiroshi Takahashi | 1999-08-24 |
| 5513285 | Compact optical switching module including thin-film heaters and trimmed thick-film fixed resistors | Toshiyuki Kawashima, Jiro Utsunomiya, Kiyoshi Kurosawa, Iida Saburo, Ryo Nagase +4 more | 1996-04-30 |