Assignee
Inventors
- Kenjiro Dokan (1 patents)
- Seiji Inano (1 patents)
- Takashi Onoda (19 patents)
- Yuji Fujiwara (137 patents)
- Yoshiyuki Hiramatsu (1 patents)
- Yoshihiro Umeda (8 patents)
- Shinichi Kamo (1 patents)
US Patent 4742612 · Granted May 10, 1988