Assignee
Inventors
- Takamoto Watanabe (84 patents)
- Yoshinori Ohtsuka (42 patents)
- Muneaki Matsumoto (50 patents)
- Tadashi Hattori (216 patents)
- Kouichi Hoshino (14 patents)
- Masanori Ohsawa (3 patents)
- Katsumi Nakamura (120 patents)
US Patent 5134371 · Granted Jul 28, 1992