Assignee
Inventors
- Takeo Ito (58 patents)
- Tadashi Ido (14 patents)
- Hajime Takeuchi (101 patents)
- Minoru Hashimoto (120 patents)
- Tatsumi Maeda (15 patents)
- Masashi Awa (3 patents)
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Skip to contentUS Patent 4578313 · Granted Mar 25, 1986