Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867629 | Dusttight storage cabinet apparatus for use in clean rooms | Yoshiyuki Iwasawa, Tsutomu Ishida, Hiroshi Harada, Kenji Okamoto, Shintaro Kobayashi +4 more | 1989-09-19 |
| 4868431 | Linear motor with an elongated core using oppositely polarized magnets to maximize perpendicular flux lines | Mitsuji Karita, Tetsuo Oishi | 1989-09-19 |