Growing community of inventors

Toyota, Japan

Shigeji Takumi

Average Co-Inventor Count = 3.43

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 = 19

Shigeji TakumiToshimitu Watanabe (1 patent)Shigeji TakumiMasayuki Sakai (1 patent)Shigeji TakumiChoichi Suzuki (1 patent)Shigeji TakumiTetsurou Otani (1 patent)Shigeji TakumiKazutoshi Minami (1 patent)Shigeji TakumiShigeji Takumi (2 patents)Toshimitu WatanabeToshimitu Watanabe (5 patents)Masayuki SakaiMasayuki Sakai (2 patents)Choichi SuzukiChoichi Suzuki (1 patent)Tetsurou OtaniTetsurou Otani (1 patent)Kazutoshi MinamiKazutoshi Minami (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toyota Jidosha Kabushiki Kaisha (2 from 36,771 patents)


2 patents:

1. 4664074 - Apparatus for cooling an intercooler

2. 4512239 - Vehicle air duct construction using center console box

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as of
1/8/2026
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