Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4993376 | Spring system | Taizo Fukutome, Atsushi Ishida, Noritoshi Takamura, Kaoru Hatayama, Yuichi Nagase +2 more | 1991-02-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4993376 | Spring system | Taizo Fukutome, Atsushi Ishida, Noritoshi Takamura, Kaoru Hatayama, Yuichi Nagase +2 more | 1991-02-19 |