Growing community of inventors

Sapporo, Japan

Hiroyuki Doi

Average Co-Inventor Count = 4.00

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 = 21

Hiroyuki DoiSeishin Tanaka (1 patent)Hiroyuki DoiKazuhiro Shinmoto (1 patent)Hiroyuki DoiZyunya Fujii (1 patent)Hiroyuki DoiHiroyuki Doi (1 patent)Seishin TanakaSeishin Tanaka (13 patents)Kazuhiro ShinmotoKazuhiro Shinmoto (2 patents)Zyunya FujiiZyunya Fujii (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Jms Co., Ltd. (1 from 166 patents)


1 patent:

1. 6589197 - Fluid passage change-over apparatus for medical treatment

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as of
12/19/2025
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