Growing community of inventors

Mie, Japan

Haruhiro Hirai

Average Co-Inventor Count = 6.00

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 = 18

Haruhiro Hirai ↔ Masayuki Hattori (1 patent)Haruhiro Hirai ↔ Kiyoshi Kasai (1 patent)Haruhiro Hirai ↔ Nobuo Sakurai (1 patent)Haruhiro Hirai ↔ Hiromi Takeuchi (1 patent)Haruhiro Hirai ↔ Osamu Kikuchi (1 patent)Haruhiro HiraiHaruhiro Hirai (1 patent)Masayuki HattoriMasayuki Hattori (87 patents)Kiyoshi KasaiKiyoshi Kasai (12 patents)Nobuo SakuraiNobuo Sakurai (7 patents)Hiromi TakeuchiHiromi Takeuchi (3 patents)Osamu KikuchiOsamu Kikuchi (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Japan Synthetic Rubber Co., Ltd. (1 from 377 patents)


1 patent:

1. 4694035 - Process for preparing large-sized polymer particles

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as of
12/10/2025
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