Growing community of inventors

Yokohama, Japan

Fumio Hase

Average Co-Inventor Count = 2.00

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

Fumio Hase ↔ Sachio Ohotoshi (1 patent)Fumio HaseFumio Hase (1 patent)Sachio OhotoshiSachio Ohotoshi (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Asahi Glass Company, Limited (1 from 2,560 patents)

2. Seimi Chemical Co., Ltd. (1 from 38 patents)


1 patent:

1. 4615479 - Method for soldering an electrical product

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as of
1/18/2026
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