Assignee
Inventors
- Katsutoshi Ishikawa (10 patents)
- Hitoshi Shimotori (12 patents)
- Noboru Iida (6 patents)
- Toshiaki Kuwatsuka (8 patents)
- Junya Fujiwara (6 patents)
- Yuji Yanase (11 patents)
- Takeshi Sekino (2 patents)
US Patent 4814337 · Granted Mar 21, 1989