Issued Patents 2002
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496617 | Optical amplifier, optical transmission equipment, optical transmission system, and method thereof | Junya Kosaka, Takayuki Suzuki | 2002-12-17 |
| 6490387 | Optical transmission device and optical transmission system employing the same | Junya Kosaka, Takayuki Suzuki | 2002-12-03 |
| 6454070 | Drain mechanism for hydraulic power transmission joint | Tadahiko Kato, Akira Nakabayashi, Toshiharu Takasaki, Hirotaka Kusukawa, Shigeo Murata | 2002-09-24 |
| 6403607 | Sulfonamide derivatives and drugs containing the same as the active ingredient | Hiroyoshi Hidaka, Tsutomu Inoue, Isao Umezawa, Hiroshi Nakamura, Naofumi Watanabe +3 more | 2002-06-11 |
| 6386949 | Method for cleansing/scraping and apparatus therefor | Koichi Hagiwara, Jiro Watanabe, Kazuo Kishimoto | 2002-05-14 |
| 6355570 | Semiconductor manufacturing methods, plasma processing methods and plasma processing apparatuses | Toshihiko Nakata, Takanori Ninomiya, Sachio Uto | 2002-03-12 |
| 6336539 | Drain mechanism for hydraulic power transmission joint | Kazuhisa Shimada, Tadahiko Kato, Toshiharu Takasaki, Hirotaka Kusukawa, Shigeo Murata | 2002-01-08 |