Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878520 | Heat insulating structures for low-temperature or cryogenic pipings | Masao Nakamura | 1989-11-07 |
HT
Hiroshi Tonokawa
Asahi Kasei Kogyo Co.: 1 patents #8 of 123Top 7%
Overall (1989): #103,820 of 140,708Top 75%
1
Patents 1989