Assignee
Inventors
- Tamio Mizukami (24 patents)
- Akira Asai (25 patents)
- Katsuhiko Ando (33 patents)
- Shingo Kakita (4 patents)
- Akira Mihara (6 patents)
- Katsunori Kita (3 patents)
- Yasuhiro Suzuki (1 patents)
- Tadashi Ashizawa (33 patents)
US Patent 5972997 · Granted Oct 26, 1999