Assignee
Inventors
- Shiro Kobayashi (45 patents)
- Yuichi Aoki (39 patents)
- Kouji Nakanishi (2 patents)
- Toshitaka Shigeoka (1 patents)
- Tetsuro Yoshii (10 patents)
- Katsuhisa Enjoji (2 patents)
- Etsuo Ogino (28 patents)
US Patent 5229628 · Granted Jul 20, 1993