Growing community of inventors

Toyohashi, Japan

Seizi Yamada

Average Co-Inventor Count = 5.00

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 = 9

Seizi YamadaKiyohisa Eguchi (1 patent)Seizi YamadaTerumasa Okamura (1 patent)Seizi YamadaNorio Kitamura (1 patent)Seizi YamadaGeorge Ohta (1 patent)Seizi YamadaSeizi Yamada (1 patent)Kiyohisa EguchiKiyohisa Eguchi (5 patents)Terumasa OkamuraTerumasa Okamura (3 patents)Norio KitamuraNorio Kitamura (3 patents)George OhtaGeorge Ohta (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Agency of Industrial Science and Technology (1 from 1,037 patents)

2. Hanano Commercial Co., Ltd. (1 from 8 patents)

3. Taihei Chem. Inc. (1 from 1 patent)

4. Gosei Kagaku Kkk. (1 from 1 patent)


1 patent:

1. 4402838 - Lubricant compositions for forging or extrusion

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as of
12/16/2025
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