Tape roll, tape cartridge, and method for manufacturing tape roll
US11065839B2 · kind B2 · utility
0Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2018 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Dec 7, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2301/41
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The disclosure discloses a tape roll that winds a tape with a minimum radius R. The tape before being wound includes a flexible material layer. The flexible material layer includes flat plate-shaped reflectors inside and having a thickness T. On condition that a flexural modulus of the reflectors is G, a bending strength of the reflectors is A, and an average particle diameter of the reflectors is 2L, the reflectors satisfy the following relationships R/L{1−cos(L/R)}<A/G, and 2L>T.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.