Issued Patents 2004
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821433 | Water purification method | Kazuo Hokkirigawa, Motoharu Akiyama | 2004-11-23 |
| 6783433 | Polishing-washing method | Kazuo Hokkirigawa, Motoharu Akiyama | 2004-08-31 |
| 6775931 | Stud and shoe provided with the studs | Kazuo Hokkirigawa, Motoharu Akiyama | 2004-08-17 |
| 6777042 | Deodorizing and absorbing material | Kazuo Hokkirigawa, Motoharu Akiyama | 2004-08-17 |
| 6746519 | Air cleaning filter | Kazuo Hokkirigawa, Motoharu Akiyama | 2004-06-08 |
| 6725574 | Shoe midsole, method for preparing same and shoes using same | Kazuo Hokkirigawa, Motoharu Akiyama | 2004-04-27 |
| 6689729 | Powder detergent | Kazuo Hokkirigawa, Motoharu Akiyama | 2004-02-10 |
| 6673762 | Contaminated surface polishing-washing detergent composition | Kazuo Hokkirigawa, Motoharu Akiyama | 2004-01-06 |