Assignee
Inventors
- Yukio Takigawa (18 patents)
- Shigeaki Yagi (4 patents)
- Toshimi Kawahara (25 patents)
- Mitsunada Osawa (10 patents)
- Hiroyuki Ishiguro (26 patents)
- Shinya Nakaseko (6 patents)
- Takashi Hozumi (14 patents)
- Masaaki Seki (13 patents)
US Patent 5844309 · Granted Dec 1, 1998