Growing community of inventors

Yokohama, Japan

Tadahide Sone

Average Co-Inventor Count = 3.00

ph-index = 1

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 = 9

Tadahide Sone ↔ Katsuhiko Haji (1 patent)Tadahide Sone ↔ Masaki Nagao (1 patent)Tadahide SoneTadahide Sone (1 patent)Katsuhiko HajiKatsuhiko Haji (10 patents)Masaki NagaoMasaki Nagao (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nippon Mitsubishi Oil Corporation (1 from 84 patents)


1 patent:

1. 6514298 - Fuel additive and fuel composition

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12/10/2025
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