Assignee
Inventors
- Kouichi Takemura (14 patents)
- Yoshitaka Murakawa (30 patents)
- Hiroyuki Matsuo (74 patents)
- Takao Sugano (29 patents)
- Kazuki Ogawa (14 patents)
- Fumio Kaneko (4 patents)
- Yukihiro Matsushita (20 patents)
US Patent 6236040 · Granted May 22, 2001