Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703452 | Safety ensuring apparatus | — | 1997-12-30 |
| 5675317 | Residual pressure sensor and residual pressure sensor monitoring apparatus | Masato Ichikawa, Masayoshi Sakai | 1997-10-07 |
| 5668706 | Load driving circuit | Masayoshi Sakai | 1997-09-16 |
| 5666081 | On-delay circuit | Masayoshi Sakai | 1997-09-09 |
| 5638043 | Warning apparatus | Masayoshi Sakai | 1997-06-10 |
| 5619110 | Safety ensuring apparatus | Noboru Sugimoto, Masatoshi Suzuki, Masayoshi Sakai, Ritsuo Mihira | 1997-04-08 |