Assignee
Inventors
- Nobufumi Mori (46 patents)
- Katsuaki Muraishi (29 patents)
- Terumi Matsuda (25 patents)
- Masahiro Ohnishi (31 patents)
- Hiromi Nunome (4 patents)
- Tadao Koyama (1 patents)
- Tetsuo Oikawa (9 patents)
US Patent 4928016 · Granted May 22, 1990