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Inventors
- Unknown
- Unknown
- Takashi Furuya (16 patents)
- Hayami Nakao (8 patents)
- Makoto Gotoh (12 patents)
- Eiji Kohno (10 patents)
- Masanori Tohnishi (13 patents)
- Kazuyuki Sakata (48 patents)
- Masayuki Morimoto (12 patents)
- Akira Seo (13 patents)