Assignee
Inventors
- Kiichi Sawai (60 patents)
- Jun Takeda (2 patents)
- Yutaka Seino (2 patents)
- Hiroo Imura (7 patents)
- Kenichi Tanaka (242 patents)
- Haruo Takahashi (17 patents)
- Takahiko Mitani (32 patents)
- Masayasu Kurono (73 patents)
US Patent 4985356 · Granted Jan 15, 1991