Assignee
Inventors
- Noriyuki Ishii (28 patents)
- Masayasu Hirano (26 patents)
- Hideo Kajita (19 patents)
- Hirokazu Kuroda (10 patents)
- Shuji Izumi (34 patents)
- Akihiko Fujino (69 patents)
- Toshihiko Ishimura (59 patents)
- Reiji Seki (33 patents)
US Patent 5070234 · Granted Dec 3, 1991