Assignee
Inventors
- Seishi Kato (13 patents)
- Suwan Oh (2 patents)
- Shingo Sekine (6 patents)
- Mihoro Saeki (2 patents)
- Midori Kobayashi (1 patents)
- Mika Yada (1 patents)
- Tomoko Tsuji (41 patents)
- Hitoshi Ohmori (41 patents)
US Patent 6180602 · Granted Jan 30, 2001