Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878971 | Method of continuously assembling chemical analysis slides | Yukio Ishida, Tatsuo Shiino | 1989-11-07 |
| 4871441 | Ion activity measuring device | Hikaru Tsuruta, Takehiko Sato | 1989-10-03 |
| 4802554 | Grease applying method | Naoto Takayama, Kazumi Kitamura | 1989-02-07 |