Assignee
Inventors
- Kozo Sonobe (3 patents)
- Takashi Fukuzawa (39 patents)
- Kohsuke Takeuchi (3 patents)
- Tatushi Tabata (3 patents)
- Hiroshi Fukuoka (12 patents)
- Kunio Hisamatsu (3 patents)
- Makoto Katamura (3 patents)
US Patent 4882303 · Granted Nov 21, 1989