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US 12,683,290 B2Granted
Radio wave absorber, radio wave absorption structure including radio wave absorber, and composition for radio wave absorber
AssigneeIdemitsu Kosan Co., Ltd.
InventorsHirofumi Kondo, Kotaro Kajikawa
Life of this patent
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Abstract
A radio wave absorber comprising a resin and a carbon fiber, wherein 60 to 90% by volume of the total carbon fiber is present in a region from the first surface of the radio wave absorber to half of the total thickness of the radio wave absorber.
Claims19
A radio wave absorber, comprising:
- a resin;
- and
- a carbon fiber selected from a pitch-based carbon fiber and a PAN-based carbon fiber,
- wherein 60 to 90% by volume of the total carbon fiber is present in a region from the first surface of the radio wave absorber to half of the total thickness of the radio wave absorber.
1 more element
Dependencies are inferred from the claim text.