Assignee
Inventors
- Hiroshi Saimoto (4 patents)
- Masako Otsuka (4 patents)
- Mifumi Yamamoto (1 patents)
- Masao Kawashima (10 patents)
- Shozo Fujioka (1 patents)
- Akira Sakurai (1 patents)
- Takao Yokota (1 patents)
- Kunihiko Shono (1 patents)
US Patent 5084388 · Granted Jan 28, 1992