Communications: directive radio wave systems and devices (e.g. – Radio wave absorber – With particular geometric configuration
Reexamination Certificate
2008-07-08
2008-07-08
Gregory, Bernarr E (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Radio wave absorber
With particular geometric configuration
C342S001000, C523S001000, C523S137000
Reexamination Certificate
active
07397414
ABSTRACT:
An electromagnetic wave absorber is formed by injection-molding a thermoplastic resin blended with approximately 20-60% by volume of soft magnetic material powder, and blended with a molding assistant and a kneading assistant. The electromagnetic wave absorber includes a unit cell having a bore extending from a top face to a bottom face. A portion of the bore located more adjacently to the bottom face than to the top face has a smaller cross-sectional area than the bore at the top face, and a height of the unit cell from the bottom face to the top face is approximately at least 1.2 times and approximately at most 10 times as large as the maximum width of the bore at the top face of the unit cell.
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Entry for “Kolon Kopa (R) N-66 KN333MT30 N-66 Nylon 66 Resin” in the MatWeb on-line materials database; no author given; no date given; copyright 1996-2006; posted on line at matweb.com.
Kato Yasumasa
Kitamura Haruo
Noda Ken-ichi
Ogawa Masao
Birch & Stewart Kolasch & Birch, LLP
Gregory Bernarr E
Miyagawa Kasei Industry Co., Ltd.
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