Assignee
Inventors
- Kuniaki Ohkuma (2 patents)
- Reiji Nakagawa (1 patents)
- Hisao Miyao (2 patents)
- Shinichi Yoshimura (104 patents)
- Toshio Suzuki (1 patents)
- Toyoaki Hayashi (3 patents)
- Masayasu Arakawa (11 patents)
- Hideharu Koizumi (4 patents)
US Patent 4714397 · Granted Dec 22, 1987