Assignee
Inventors
- Katsuya Umemoto (12 patents)
- Kiyoshi Aizawa (6 patents)
- Minoru Yokoyama (73 patents)
- Satoru Takao (4 patents)
- Kagao Okumura (1 patents)
- Mitsugi Yamaguchi (2 patents)
- Yoshitsugu Gocho (4 patents)
- Eiji Kosuge (1 patents)
US Patent 9577504 · Granted Feb 21, 2017