Growing community of inventors

Itami, Japan

Takeshi Yamahara

Average Co-Inventor Count = 3.20

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 = 22

Takeshi YamaharaShun Inokuma (2 patents)Takeshi YamaharaMitsuhisa Tamura (1 patent)Takeshi YamaharaTakuo Hibi (1 patent)Takeshi YamaharaTooru Tokumaru (1 patent)Takeshi YamaharaHiroshi Yoshihara (1 patent)Takeshi YamaharaTetsuo Takano (1 patent)Takeshi YamaharaMasashi Araki (1 patent)Takeshi YamaharaYoshihiro Watanabe (1 patent)Takeshi YamaharaTomofumi Kawabe (1 patent)Takeshi YamaharaTakeshi Yamahara (4 patents)Shun InokumaShun Inokuma (4 patents)Mitsuhisa TamuraMitsuhisa Tamura (16 patents)Takuo HibiTakuo Hibi (15 patents)Tooru TokumaruTooru Tokumaru (6 patents)Hiroshi YoshiharaHiroshi Yoshihara (5 patents)Tetsuo TakanoTetsuo Takano (5 patents)Masashi ArakiMasashi Araki (5 patents)Yoshihiro WatanabeYoshihiro Watanabe (1 patent)Tomofumi KawabeTomofumi Kawabe (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Chemical Company, Limited (4 from 6,892 patents)


4 patents:

1. 4398051 - Production of tertiary olefins

2. 4082767 - Production of alpha-amino acids

3. 4071569 - Process for producing phenols

4. 3980662 - Process for preparing acid amides

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as of
12/7/2025
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