Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5124050 | Method and apparatus for removing hypochlorous acid components from apparatus for processing tap water | Shigeo Ushimaru, Machiko Namegaya, Toshio Ohtsuki | 1992-06-23 |
| 4395435 | Method for manufacturing information recording medium | Hideo Sanpei, Shyoji Hirano, Katuya Kumagai | 1983-07-26 |