Growing community of inventors

Otsu, Japan

Kouji Maruta

Average Co-Inventor Count = 2.40

ph-index = 3

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 13

Kouji MarutaYasuhiko Matsumoto (3 patents)Kouji MarutaKazutaka Sakamoto (2 patents)Kouji MarutaJun Hakoda (2 patents)Kouji MarutaRyosuke Miwa (1 patent)Kouji MarutaMasahiko Shibata (1 patent)Kouji MarutaGo Murayama (1 patent)Kouji MarutaTakahiro Ohashi (1 patent)Kouji MarutaKouji Maruta (4 patents)Yasuhiko MatsumotoYasuhiko Matsumoto (5 patents)Kazutaka SakamotoKazutaka Sakamoto (3 patents)Jun HakodaJun Hakoda (2 patents)Ryosuke MiwaRyosuke Miwa (2 patents)Masahiko ShibataMasahiko Shibata (2 patents)Go MurayamaGo Murayama (2 patents)Takahiro OhashiTakahiro Ohashi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Optex Co., Inc. (3 from 134 patents)

2. Chinon Industries, Inc. (1 from 5 patents)


4 patents:

1. D530356 - Camera image recorder

2. D500513 - Cradle for supporting a monitoring camera

3. D496954 - Monitoring camera device equipped with a surveillance sensor

4. D463418 - Still picture recorder for a burglar alarm system

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as of
1/10/2026
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