Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807448 | Freezing apparatus | Masahide Hashimoto, Yoshitaka Kurisu, Hiroshi Suenaga | 1989-02-28 |
AK
Akio Katou
Overall (1989): #134,705 of 140,708Top 100%
1
Patents 1989