Assignee
Inventors
- Seishiro Yamakawa (4 patents)
- Michimasa Tsuzaki (4 patents)
- Kiyotaka Komori (17 patents)
- Satoshi Fujiki (32 patents)
- Akiyoshi Nozue (4 patents)
- Kazunobu Abe (19 patents)
- Masashi Aoki (6 patents)
US Patent 5275878 · Granted Jan 4, 1994