Assignee
Inventors
- Yasutoshi Hosokawa (1 patents)
- Akiyoshi Homan (1 patents)
- Kiyokazu Wada (4 patents)
- Koji Matsuo (43 patents)
- Isao Koyama (8 patents)
- Shinichi Takagi (72 patents)
- Mitsuo Ishikawa (16 patents)
US Patent 6102823 · Granted Aug 15, 2000