Assignee
Inventors
- Wataru Ishikawa (39 patents)
- Mitsuto Fujiwhara (18 patents)
- Tamotsu Kojima (14 patents)
- Takaya Endo (9 patents)
- Katsunori Kato (24 patents)
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Skip to contentUS Patent 4289847 · Granted Sep 15, 1981