Assignee
Inventors
- Hideyuki Yamato (8 patents)
- Yuji Maeda (11 patents)
- Fumisato Yoshino (2 patents)
- Kyoya Takahata (4 patents)
- Masanori Ikuzawa (30 patents)
- Tadaaki Kato (13 patents)
- Chikao Yoshikumi (65 patents)
US Patent 4534975 · Granted Aug 13, 1985