Assignee
Inventors
- Kohichi Nakayama (6 patents)
- Kenji Osaki (4 patents)
- Hisashi Matsuda (41 patents)
- Hitoshi Sakakida (3 patents)
- Toshio Hirano (34 patents)
- Toshiaki Hirate (2 patents)
- Sueyoshi Mizuno (6 patents)
- Ikuo Saito (6 patents)
US Patent 9057682 · Granted Jun 16, 2015