Assignee
Inventors
- Kunio Kawamura (36 patents)
- Yasuo Hawai (7 patents)
- Sadafusa Tsuji (41 patents)
- Shuji Izumi (34 patents)
- Masaaki Chikasaki (12 patents)
- Michihiro Iwata (29 patents)
- Hiroyuki Okada (200 patents)
US Patent 5357302 · Granted Oct 18, 1994