Assignee
Inventors
- Akinori Sumi (20 patents)
- Wataru Ohtani (10 patents)
- Naoto Furuhata (4 patents)
- Kazuya Takeshima (4 patents)
- Kaeko Kamide (7 patents)
- Takao Ohmura (24 patents)
- Kazumasa Yokoyama (77 patents)
US Patent 5369020 · Granted Nov 29, 1994