Assignee
Inventors
- Takeshi Obana (3 patents)
- Kiyomi Nakamura (13 patents)
- Masahisa Inagaki (32 patents)
- Yasuhisa Aono (29 patents)
- Hisanori Okamura (36 patents)
- Hisao Suka (6 patents)
- Fumio Jyoraku (19 patents)
US Patent 6146094 · Granted Nov 14, 2000