Assignee
Inventors
- Hatsuo Nagaishi (79 patents)
- Hiroshi Sanbuichi (6 patents)
- Masaaki Uchida (71 patents)
- Hiromichi Miwa (16 patents)
- Toshio Takahata (14 patents)
- Yasuo Seimiya (4 patents)
- Hiromasa Kubo (20 patents)
US Patent 4951209 · Granted Aug 21, 1990