Assignee
Inventors
- Sumihisa Akahoshi (3 patents)
- Yutaka Igarashi (72 patents)
- Kouji Hirata (10 patents)
- Masanori Tsujihara (3 patents)
- Fumiaki Baba (33 patents)
- Akira Yamada (290 patents)
- Chisa Kato (4 patents)
US Patent 5985393 · Granted Nov 16, 1999