Growing community of inventors

Osaka, Japan

Kumio Maruyama

Average Co-Inventor Count = 2.00

ph-index = 1

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 = 0

Kumio MaruyamaShinji Ishikawa (2 patents)Kumio MaruyamaKumio Maruyama (2 patents)Shinji IshikawaShinji Ishikawa (19 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kyoraku Co., Ltd. (2 from 205 patents)


2 patents:

1. 11447324 - Container for microwave oven

2. 10717585 - Container for microwave oven

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as of
12/7/2025
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