Assignee
Inventors
- Tohru Yoshikawa (9 patents)
- Syohei Shimodaira (1 patents)
- Mamoru Abe (4 patents)
- Hidehiko Maehata (23 patents)
- Hiroaki Arai (51 patents)
- Hiroyuki Daiku (11 patents)
- Masanori Tsukahara (9 patents)
- Seiji Ohtani (1 patents)
US Patent 5078542 · Granted Jan 7, 1992