Assignee
Inventors
- Masatoshi Hosoi (12 patents)
- Masashi Shimada (16 patents)
- Yuji Ueno (21 patents)
- Tsutomu Ichinose (14 patents)
- Shin Umeda (5 patents)
- Hirobumi Yoshino (11 patents)
- Takashi Komada (5 patents)
US Patent 5031890 · Granted Jul 16, 1991