Growing community of inventors

Tondabayashi, Japan

Iwao Toyoshima

Average Co-Inventor Count = 5.00

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 = 10

Iwao Toyoshima ↔ Hideo Sawada (1 patent)Iwao Toyoshima ↔ Junji Kawamoto (1 patent)Iwao Toyoshima ↔ Hiromu Yokota (1 patent)Iwao Toyoshima ↔ Kunio Ishii (1 patent)Iwao ToyoshimaIwao Toyoshima (1 patent)Hideo SawadaHideo Sawada (6 patents)Junji KawamotoJunji Kawamoto (3 patents)Hiromu YokotaHiromu Yokota (2 patents)Kunio IshiiKunio Ishii (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Daicel Corporation (1 from 640 patents)


1 patent:

1. 4085760 - Tobacco filter

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12/21/2025
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