Assignee
Inventors
- Kunihiko Yamamoto (25 patents)
- Kiyohisa Matsui (4 patents)
- Yutaka Ishii (100 patents)
- Norio Yasunishi (10 patents)
- Toshihiro Nakamura (83 patents)
- Hajime Washio (79 patents)
- Koki Taniguchi (10 patents)
US Patent 5610628 · Granted Mar 11, 1997