Assignee
Inventors
- Katsuhiko Tsuruoka (6 patents)
- Shozo Nishida (8 patents)
- Masafumi Wakamori (3 patents)
- Takemitsu Tanaka (3 patents)
- Masaaki Yada (6 patents)
- Osamu Ishikawa (100 patents)
- Hiroyuki Miki (22 patents)
US Patent 5637644 · Granted Jun 10, 1997