Growing community of inventors

Fukuoka, Japan

Tadashi Ohkuma

Average Co-Inventor Count = 5.33

ph-index = 2

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 = 25

Tadashi OhkumaMasao Imai (2 patents)Tadashi OhkumaAtsuo Otsuji (2 patents)Tadashi OhkumaKenichi Fujii (1 patent)Tadashi OhkumaKenichi Sugimoto (1 patent)Tadashi OhkumaKeisuke Takuma (1 patent)Tadashi OhkumaMasatoshi Takagi (1 patent)Tadashi OhkumaMitsuo Nakamura (1 patent)Tadashi OhkumaRihoko Suzuki (1 patent)Tadashi OhkumaTadashi Ohkuma (2 patents)Masao ImaiMasao Imai (44 patents)Atsuo OtsujiAtsuo Otsuji (38 patents)Kenichi FujiiKenichi Fujii (137 patents)Kenichi SugimotoKenichi Sugimoto (72 patents)Keisuke TakumaKeisuke Takuma (49 patents)Masatoshi TakagiMasatoshi Takagi (28 patents)Mitsuo NakamuraMitsuo Nakamura (14 patents)Rihoko SuzukiRihoko Suzuki (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsui Chemicals, Inc. (2 from 1,786 patents)


2 patents:

1. 6794471 - Acrylic ester compound usage thereof

2. 6458908 - Sulfur-containing unsaturated carboxylate compound and its cured products

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as of
12/8/2025
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