Assignee
Inventors
- Itaru Mimura (22 patents)
- Hirotada Ueda (67 patents)
- Shigeo Sumino (15 patents)
- Mitsuru Ikezawa (24 patents)
- Toshiaki Suzuki (211 patents)
- Taizo Kinoshita (17 patents)
- Katsumi Tada (33 patents)
US Patent 5548346 · Granted Aug 20, 1996