Marumo Electric Co., Ltd.

Calculating rank

USPTO Granted Patents = 4

% Expired Patents = 25.0

Forward Citations = 109

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9 inventors (with patents filed for the assignee):

Hiroshi Kita (2 out of 147 patents)

Tsunemichi Tanaka (2 out of 2 patents)

Tsutomu Ishizone (2 out of 2 patents)

4. Naoki Yanai (1 out of 1 patent)

5. Saburo Kimura (1 out of 1 patent)

6. Hidemitsu Yamazuka (1 out of 1 patent)

7. Masaki Asaoku (1 out of 1 patent)

8. Keijiro Asakura (1 out of 1 patent)

9. Kenichi Tsuchizaki (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 7192162 - Spotlight (2007-03-20),

2. 6975078 - Dimming-control lighting apparatus for incandescent electric lamp (2005-12-13),

3. 6837596 - Lighting device (2005-01-04),

4. 6664735 - Dimmer for incandesent lamp (2003-12-16),

Company Overview

Marumo Electric Co., Ltd. is a leading manufacturer of electrical products based in Japan. With a history dating back to 1960, the company has established a strong reputation for quality and innovation in the industry. Their product range includes electric wires, cables, lighting fixtures, and other electrical components. Marumo Electric is committed to providing reliable solutions for residential, commercial, and industrial applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

4 Patents

#3,058 in Tokyo

#7,590 in Japan

Tokyo, Japan