Assignee
Inventors
- Masayasu Kurono (73 patents)
- Hidehumi Yamakawa (2 patents)
- Takuya Koshizaka (2 patents)
- Takehiko Suzuki (94 patents)
- Eiichi Kato (217 patents)
- Takafumi Iida (8 patents)
- Nobuko Ohishi (9 patents)
- Kunio Yagi (13 patents)
US Patent 4987150 · Granted Jan 22, 1991