Growing community of inventors

Shiga, Japan

Tatsuhiko Tsumura

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 = 1

Tatsuhiko Tsumura ↔ Hirofumi Otsuka (1 patent)Tatsuhiko Tsumura ↔ Kazuhiro Takahashi (1 patent)Tatsuhiko TsumuraTatsuhiko Tsumura (1 patent)Hirofumi OtsukaHirofumi Otsuka (9 patents)Kazuhiro TakahashiKazuhiro Takahashi (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toyoda Gosei Co., Ltd. (1 from 3,080 patents)

2. Japan Vilene Company, Ltd. (1 from 87 patents)


1 patent:

1. 9610832 - Weather strip

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as of
12/16/2025
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