Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8227360 | Sheet for use as filter, mask or the like having bacteria adsorbing function | Masatoshi IIDA | 2012-07-24 |
| 7291266 | Composite filter and method and apparatus for producing high purity water using the composite filter | Ryousuke Murayama, Masatoshi IIDA, Masayoshi Furuhashi | 2007-11-06 |
| 5041079 | Method for removing human immunodeficiency virus and/or its related compounds | Keiichi Kurokawa, Shuhei Nakaji, Ken Yamane, Ryosuke Murayama | 1991-08-20 |
| 4259303 | Method of and system for treating waste anesthetic gas | Osamu Nakaji, Seishiro Nakamura | 1981-03-31 |