Assignee
Inventors
- Katsumi Tokiguchi (18 patents)
- Takayoshi Seki (19 patents)
- Kensuke Amemiya (58 patents)
- Yasuo Yamashita (14 patents)
- Kazuo Mera (15 patents)
- Isao Hashimoto (58 patents)
- Keiji Arimatsu (8 patents)
US Patent 6104025 · Granted Aug 15, 2000