Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9460820 | Radiation shielding method and device, and method of processing structure | Yukihide Shimazu, Hiroyuki Mizuma, Nobuyuki Hori | 2016-10-04 |
| 4959571 | Axial-flow fan with tapered hub and duct | Ippei Hagiwara | 1990-09-25 |
| 4814914 | Disc driving device having a reinforced base | Ippei Hagiwara, Etsuo Tamura | 1989-03-21 |
| 4196703 | Intake system for internal combustion engines | Kingo Okitsu, Toshimitsu Tanaka, Akiyoshi Kamimoto | 1980-04-08 |