Assignee
Inventors
- Machiko Takigami (3 patents)
- Haruyo Amada (1 patents)
- Naotsugu Nagasawa (7 patents)
- Toshiaki Yagi (26 patents)
- Masao Tamada (12 patents)
- Noboru Kasai (7 patents)
- Fumio Yoshii (14 patents)
- Akihiro Hiroki (5 patents)
US Patent 8633254 · Granted Jan 21, 2014