US 12,068,005 B2
Tape reel and tape cartridge
Hiroshi Kumagai, Tokyo (JP); Taeko Takahashi, Tokyo (JP); and Yuji Iwahashi, Tokyo (JP)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 17/599,749
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Mar. 3, 2020, PCT No. PCT/JP2020/008845
§ 371(c)(1), (2) Date Sep. 29, 2021,
PCT Pub. No. WO2020/202980, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2019-068263 (JP), filed on Mar. 29, 2019.
Prior Publication US 2022/0172743 A1, Jun. 2, 2022
Int. Cl. G11B 23/04 (2006.01); B65H 75/14 (2006.01); G11B 23/037 (2006.01); G11B 23/107 (2006.01)
CPC G11B 23/044 (2013.01) [B65H 75/14 (2013.01); G11B 23/037 (2013.01); G11B 23/107 (2013.01); B65H 2701/378 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A tape reel, comprising:
a cylindrical reel hub that includes an outer periphery portion, a tape being wound on the reel hub, wherein
the reel hub is a molded body of a composite material in which an inorganic filler is contained in a polyphenylene sulfide resin and in which a deformation amount when a load of 300 N is applied radially inward to an axial center of the outer periphery portion is 0.165 mm to 0.3 mm and a water absorption rate is 0.1% or less,
wherein the composite material having a flexural modulus of 20 GPa or more,
wherein the inorganic filler is at least one of a glass filler, a mineral filler, or a carbon filler, and
wherein an amount of the inorganic filler ranges from 30 wt % to 65 wt %.