Sterilization method and sterilization apparatus
US11642548B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 6, 2021 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Dec 17, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/0661
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Provided a method of sterilization by ultraviolet irradiation whereby effects on the human body can be mitigated and an odor that arises after ultraviolet irradiation can be controlled. The sterilization method includes: a step (a) of irradiating a skin of a hand or arm with ultraviolet having a wavelength of 200 nm or more and 230 nm or less; and a step (b) of applying a topical skin preparation, cosmetic, or aqueous solution containing at least one amino acid or amino acid derivative selected from an amino acid group A to a region of the skin irradiated with the ultraviolet. The amino acid group A includes valine, leucine, isoleucine, glutamic acid, arginine, serine, aspartic acid, proline, and glycine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.