Growing community of inventors

Osaka, Japan

Takuji Kohama

Average Co-Inventor Count = 4.90

ph-index = 4

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 = 91

Takuji KohamaGoro Shinjo (4 patents)Takuji KohamaFumiyasu Minagawa (4 patents)Takuji KohamaKazuyuki Maeda (4 patents)Takuji KohamaHitoshi Kawada (2 patents)Takuji KohamaToshiro Ohtsubo (1 patent)Takuji KohamaShigenori Tsuda (1 patent)Takuji KohamaTakuji Kohama (4 patents)Goro ShinjoGoro Shinjo (13 patents)Fumiyasu MinagawaFumiyasu Minagawa (4 patents)Kazuyuki MaedaKazuyuki Maeda (4 patents)Hitoshi KawadaHitoshi Kawada (10 patents)Toshiro OhtsuboToshiro Ohtsubo (17 patents)Shigenori TsudaShigenori Tsuda (12 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Chemical Company, Limited (4 from 6,893 patents)


4 patents:

1. 5300293 - Poison bait for control of noxious insects

2. 5096710 - Poison bait for control of noxious insects

3. 4985413 - Poison bait for control of noxious insects

4. 4834977 - Poison bait for control of noxious insects

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as of
12/11/2025
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