Signal light unit having heat dissipating function

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4729076
SERIAL NO

06908702

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A heat sink, made of a highly heat-conductive material is placed on the back of a circuit board upon the front of which many LEDs are arrayed as the signal light source. The heat sink, generally formed as an aggregate of a number of fins, need not necessarily be fitted in one piece with the back face of the board but may be indirectly connected to the back face of the board with a heat absorber being placed between the heat sink and the back face of the board.

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Patent Owner(s)

  • KOITO INDUSTRIES, LTD.;STANLEY ELECTRIC CO., LTD.;JAPAN TRAFFIC MANAGEMENT TECHNOLOGY ASSOCIATION, A CORP. OF JAPAN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hiroshi, Kato 3447, Fukaya, Ayase-shi, Kanagawa, JP 3 459
Masami, Tsuzawa 14-15 Minamitsukushino 4-chome, Machida-shi, Tokyo, JP 1 455
Muneharu, Tominaga 2-47-102, Shiohama 4-chome, Ichikawa-shi, Chiba, JP 1 455
Osamu, Waki 1-18, Kitano 1-chome, Mitaka-shi, Tokyo, JP 1 455
Tadahiro, Morikawa 1184-2, Diagiri, Fujisawa-shi, Kanagawa, JP 1 455
Yoshinori, Uchiyama 16-22 Tsurukawa, 3-chome, Machida-shi, Tokyo, JP 1 455

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