Assignee
Inventors
- Toru Umekawa (21 patents)
- Unknown
- Takaaki Fujii (36 patents)
- Shinichi Shimizu (22 patents)
- Seishin Takao (7 patents)
- Kikuo Umegaki (45 patents)
- Naoki Miyamoto (67 patents)
- Norio KATOH (1 patents)
US Patent 11282244 · Granted Mar 22, 2022