Assignee
Inventors
- Hisanori Matsui (4 patents)
- Keiji Sutoh (1 patents)
- Moriharu Yamamoto (4 patents)
- Kazuhiro Takagi (27 patents)
- Kunihiro Yabutani (4 patents)
- Kuniaki Taninaka (4 patents)
- Mitsuru Kajioka (6 patents)
US Patent 4845232 · Granted Jul 4, 1989