Assignee
Inventors
- Yuji Yoshinari (6 patents)
- Hitoshi Shiraishi (8 patents)
- Osamu Tanaka (167 patents)
- Akiyoshi Kawahito (1 patents)
- Toshihiro Kayahara (16 patents)
- Satoru Takeda (1 patents)
- Takashi Yamada (1 patents)
- Akinori Kawakami (7 patents)
US Patent 4825813 · Granted May 2, 1989