Assignee
Inventors
- Hiroshi Hojo (16 patents)
- Yasuhiro Sugimoto (58 patents)
- Kazuhiro Sakamoto (30 patents)
- Masanori Takeishi (5 patents)
- Dai Koumoto (1 patents)
- Akira Amano (38 patents)
- Yasuji Hashimoto (17 patents)
US Patent 5210998 · Granted May 18, 1993