Growing community of inventors

Tokyo, Japan

Yoshitaka Izumi

Average Co-Inventor Count = 1.00

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 = 32

Yoshitaka IzumiYoshitaka Izumi (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Kimura Bed Mfg. Company Limited (3 from 6 patents)

2. Imac Engineering Co., Ltd. (0 patent)


3 patents:

1. 4531939 - Vacuum suction type urinating aid

2. 4443217 - Suction type urinating aid

3. 4366818 - Vacuum type urinating aid

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as of
12/13/2025
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