Assignee
Inventors
- Akihiko Kanouda (72 patents)
- Yoshimi Sakurai (32 patents)
- Kenji Kubo (57 patents)
- Hideyasu Umetsu (3 patents)
- Hideaki Kunisada (11 patents)
- Keizo Shimada (13 patents)
- Takayasu Nakane (1 patents)
US Patent 5959858 · Granted Sep 28, 1999