Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5018403 | Globoid worm gear speed reduction apparatus | Shiro Umezono | 1991-05-28 |
| 4998385 | Method of modified gear cutting of a globoid worm gear | Shiro Umezono | 1991-03-12 |
| 4184796 | Globoid worm gear generating method | Takao Sakai, Hisashi Tamura | 1980-01-22 |