Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886725 | Toner composition containing organotin oxide | Hiroshi Fukumoto | 1989-12-12 |
| 4856918 | Bearing device | Gentei Inoue, Ikunori Sakatani | 1989-08-15 |
| 4839255 | Process for producing toner for developing electrostatic images | Yoshihiko Hyosu, Norio Hikake | 1989-06-13 |
| 4805972 | Dynamic pressure gas bearing device | Takanobu Sato, Ikunori Sakatani | 1989-02-21 |
| 4798476 | Dynamic pressure type fluid bearing | Ikunori Sakatani, Masaru Tamaki | 1989-01-17 |