Assignee
Inventors
- Masanori Tsukushi (26 patents)
- Akira Hashimoto (272 patents)
- Minori Satoh (2 patents)
- Yukio Kurosawa (48 patents)
- Kunio Hirasawa (15 patents)
- Fumihiro Endo (32 patents)
- Tokio Yamagiwa (35 patents)
US Patent 5274205 · Granted Dec 28, 1993