Growing community of inventors

Ichihara, Japan

Ryoichi Tomizawa

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 = 12

Ryoichi Tomizawa ↔ Takashi Tobita (1 patent)Ryoichi Tomizawa ↔ Hiroshi Yoshihara (1 patent)Ryoichi Tomizawa ↔ Kunio Ishikawa (1 patent)Ryoichi TomizawaRyoichi Tomizawa (1 patent)Takashi TobitaTakashi Tobita (7 patents)Hiroshi YoshiharaHiroshi Yoshihara (1 patent)Kunio IshikawaKunio Ishikawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nippon Soda Co., Ltd. (1 from 517 patents)


1 patent:

1. 4022808 - Process for the production of alkylene glycol ether of organic

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12/18/2025
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