Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11965801 | Measurement system | Kazuya Masuda, Tomohiko Ueda, Kenichiro Otsuka, Tsuneari Ito, Tetsufumi Tsuzaki +1 more | 2024-04-23 |
| 8546722 | Laser processing apparatus and processing method employed therein | Eiichiro Yamada, Akira Inoue, Koji Nakazato, Hiroshi Kohda, Takemi Hasegawa | 2013-10-01 |
| 7829335 | Method of differentiation induction to osteoblasts | Akira Inoue, Hiroshi Suganuma, Kunio Awazu, Toshihiro Kushibiki | 2010-11-09 |
| 7085446 | Optical multi/demultiplexer | — | 2006-08-01 |
| 7027215 | Optical component, optical amplification module, and optical transmission system | Motoki Kakui, Tatsuhiko Shitomi, Masayuki Shigematsu | 2006-04-11 |
| 6952309 | Optical amplifier and optical amplification method | Tetsufumi Tsuzaki, Masayuki Nishimura, Masayuki Shigematsu, Eisuke Sasaoka | 2005-10-04 |
| 6829407 | Planar optical circuit and optical transmission system | — | 2004-12-07 |
| 6819859 | Planar lightwave circuit type variable optical attenuator | Chisai Hirose | 2004-11-16 |
| 6782168 | Apparatus for and method of monitoring wavelength multiplexed signal light as well as optical transmission system using the same | Chisai Hirose, Masayuki Nishimura | 2004-08-24 |
| 6701090 | Wavelength division multiplexing signal number monitoring apparatus and method | Eisuke Sasaoka | 2004-03-02 |
| 6643431 | Optical device and control method thereof | Chisai Hirose, Masayuki Nishimura, Makoto Katayama | 2003-11-04 |
| 6633698 | Optical filter | Masayuki Nishimura | 2003-10-14 |
| 6560381 | Optical filter | Masayuki Nishimura, Chisai Hirose | 2003-05-06 |
| 6507680 | Planar lightwave circuit module | Masayuki Nishimura, Nobuhiro Akasaka | 2003-01-14 |
| 6333807 | Optical filter | Eisuke Sasaoka | 2001-12-25 |
| 6332055 | Optical attenuator, plane waveguide type optical circuit having the same and optical attenuation system having the same | Eisuke Sasaoka | 2001-12-18 |
| 6269211 | Optical plane waveguide | Eisuke Sasaoka | 2001-07-31 |
| 6169837 | Dispersion-flattened optical fiber | Takatoshi Kato, Eisuke Sasaoka, Masayuki Nishimura | 2001-01-02 |