Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7118136 | Sleeve-type pipe joint | — | 2006-10-10 |
| 6749233 | Sleeve-type pipe joint | — | 2004-06-15 |
| 5347819 | Method and apparatus for manufacturing superfluidity helium | Nobuyoshi Saji, Hiroshi Asakura, Shunji Nagai | 1994-09-20 |
| 5150923 | Plastic pipe joint assembly for joining sections of plastic pipe | Takeshi Kato | 1992-09-29 |
| 4700376 | Automatic telephone answering apparatus with remote control signal muting | Nobuo Terui | 1987-10-13 |
| 4322758 | Fluorescent indicator | Kozo Kobayashi | 1982-03-30 |