Growing community of inventors

Iwata-gun, Japan

Sumio Yokota

Average Co-Inventor Count = 7.00

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 = 70

Sumio Yokota ↔ Takeshige Miyazawa (3 patents)Sumio Yokota ↔ Shigehiko Tachikawa (3 patents)Sumio Yokota ↔ Nobuyuki Ohba (3 patents)Sumio Yokota ↔ Toshihiro Nagata (2 patents)Sumio Yokota ↔ Masafumi Matsuzawa (2 patents)Sumio Yokota ↔ Katsutada Yanagisawa (2 patents)Sumio Yokota ↔ Yoshihiro Ito (1 patent)Sumio Yokota ↔ Nobuhide Wada (1 patent)Sumio Yokota ↔ Masahiro Miyazaki (1 patent)Sumio YokotaSumio Yokota (3 patents)Takeshige MiyazawaTakeshige Miyazawa (32 patents)Shigehiko TachikawaShigehiko Tachikawa (11 patents)Nobuyuki OhbaNobuyuki Ohba (6 patents)Toshihiro NagataToshihiro Nagata (13 patents)Masafumi MatsuzawaMasafumi Matsuzawa (10 patents)Katsutada YanagisawaKatsutada Yanagisawa (6 patents)Yoshihiro ItoYoshihiro Ito (111 patents)Nobuhide WadaNobuhide Wada (22 patents)Masahiro MiyazakiMasahiro Miyazaki (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kumiai Chemical Industry Co., Ltd. (3 from 215 patents)

2. Ihara Chemical Industry Co., Ltd. (3 from 211 patents)


3 patents:

1. 5877120 - Nicotinic acid derivatives and herbicides

2. 5770544 - Condensed heterocyclic derivatives and herbicides

3. 5616537 - Condensed heterocyclic derivatives and herbicides

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as of
12/4/2025
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