Assignee
Inventors
- Masahiko Hirata (14 patents)
- Takashi Ohashi (71 patents)
- Hisahiko Yoshida (8 patents)
- Hiroji Noguchi (4 patents)
- Takao Hisazumi (18 patents)
- Mamoru Senna (6 patents)
- Tetsuhiko Isobe (8 patents)
US Patent 6416590 · Granted Jul 9, 2002