Packaging material made of electret material and packaging method
US5266369A · kind A · utility
7Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1992 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Sep 4, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A packaging material according to the present invention includes an electret material having a surface part mutually different polarized electric charges on a front surface and a rear surface thereof. A method of packaging according to the present invention includes covering at least a portion of an object using the packaging material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.