Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884557 | Endoscope for automatically adjusting an angle with a shape memory alloy | Sakae Takehana, Tomohisa Sakurai | 1989-12-05 |
| 4832473 | Endoscope with elastic actuator comprising a synthetic rubber tube with only radial expansion controlled by a mesh-like tube | — | 1989-05-23 |
| 4805598 | Endoscope having optical elements that are resistant to condensation | — | 1989-02-21 |
| 4805618 | Oviduct closing apparatus | Isao Nagai, Naruto Shinkai, Masaaki Nakazawa, Toshiki Terayama | 1989-02-21 |
| 4799474 | Medical tube to be inserted in body cavity | — | 1989-01-24 |