Growing community of inventors

Toyota, Japan

Tatsuo Yoshioka

Average Co-Inventor Count = 5.00

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 = 5

Tatsuo Yoshioka ↔ Tadamori Sakakibara (1 patent)Tatsuo Yoshioka ↔ Setsuo Yoshida (1 patent)Tatsuo Yoshioka ↔ Akira Yamazaki (1 patent)Tatsuo Yoshioka ↔ Isamu Kawaji (1 patent)Tatsuo YoshiokaTatsuo Yoshioka (1 patent)Tadamori SakakibaraTadamori Sakakibara (8 patents)Setsuo YoshidaSetsuo Yoshida (2 patents)Akira YamazakiAkira Yamazaki (2 patents)Isamu KawajiIsamu Kawaji (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toyota Jidosha Kabushiki Kaisha (1 from 36,499 patents)

2. Tonen Corporation (1 from 141 patents)


1 patent:

1. 5391307 - Lubricating oil composition

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12/7/2025
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