Growing community of inventors

Tokyo, Japan

Seiji Ukai

Average Co-Inventor Count = 5.14

ph-index = 3

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 = 117

Seiji UkaiMakoto Shioya (2 patents)Seiji UkaiYukihiro Kawamata (2 patents)Seiji UkaiTomiharu Yoshida (2 patents)Seiji UkaiToshiro Shibata (2 patents)Seiji UkaiAtsuya Toyama (2 patents)Seiji UkaiKenichiro Yamane (1 patent)Seiji UkaiTakayoshi Yokota (1 patent)Seiji UkaiTakumi Fushiki (1 patent)Seiji UkaiSeiji Ukai (3 patents)Makoto ShioyaMakoto Shioya (81 patents)Yukihiro KawamataYukihiro Kawamata (35 patents)Tomiharu YoshidaTomiharu Yoshida (20 patents)Toshiro ShibataToshiro Shibata (4 patents)Atsuya ToyamaAtsuya Toyama (4 patents)Kenichiro YamaneKenichiro Yamane (30 patents)Takayoshi YokotaTakayoshi Yokota (23 patents)Takumi FushikiTakumi Fushiki (20 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (3 from 42,508 patents)


3 patents:

1. 6823258 - Method and apparatus for gathering vehicle information

2. 6711495 - Method and apparatus for gathering vehicle information

3. 6433704 - Communication device of moving body information and communication method thereof

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as of
1/3/2026
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