Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6482379 | Sodium-based dechlorinating agent and waste treatment equipment | Tomio Sugimoto, Masumi Itaya, Yoshinao Hirano, Hiroaki Harada, Hachiro Hirano +2 more | 2002-11-19 |
| 6478878 | Blasting medium and blasting method | Hachiro Hirano, Makoto Yoshida | 2002-11-12 |
| 6451862 | Process for producing a spherical silica gel | Makoto Kusaka, Hachiro Hirano, Hiroo Mori | 2002-09-17 |
| 6352653 | Acid component-removing agent, method for producing it and method for removing acid components | Hachiro Hirano, Makoto Yoshida, Hiroaki Noda, Shigeru Sakurai, Makoto Kusaka | 2002-03-05 |