Growing community of inventors

Kawasaki, Japan

Kazuhiro Takekawa

Average Co-Inventor Count = 8.00

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 = 60

Kazuhiro TakekawaTsutomu Tanaka (4 patents)Kazuhiro TakekawaYasuhiro Watanabe (4 patents)Kazuhiro TakekawaIchiro Watanabe (4 patents)Kazuhiro TakekawaKoji Wakio (4 patents)Kazuhiro TakekawaHajime Shimizu (4 patents)Kazuhiro TakekawaShoichi Arai (4 patents)Kazuhiro TakekawaYuji Terauchi (4 patents)Kazuhiro TakekawaKazuhiro Takekawa (4 patents)Tsutomu TanakaTsutomu Tanaka (95 patents)Yasuhiro WatanabeYasuhiro Watanabe (25 patents)Ichiro WatanabeIchiro Watanabe (19 patents)Koji WakioKoji Wakio (6 patents)Hajime ShimizuHajime Shimizu (5 patents)Shoichi AraiShoichi Arai (4 patents)Yuji TerauchiYuji Terauchi (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fujitsu Corporation (4 from 39,230 patents)


4 patents:

1. 6253199 - Database system with original and public databases and data exploitation support apparatus for displaying response to inquiry of database system

2. 6223173 - Database system with original and public databases and data exploitation support apparatus for displaying response to inquiry of database system

3. 6216124 - Database system with original and public databases and data exploitation support apparatus for displaying response to inquiry of database system

4. 6065014 - Database system, with original and public databases and data

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as of
12/13/2025
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