Growing community of inventors

Himeji, Japan

Masakazu Tokunaga

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 = 14

Masakazu TokunagaToshihiko Fujinaka (1 patent)Masakazu TokunagaMasakazu Tokunaga (1 patent)Toshihiko FujinakaToshihiko Fujinaka (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Daicel-evonik Ltd. (1 from 30 patents)


1 patent:

1. 8703296 - Functioning optical lens and production method thereof

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as of
12/18/2025
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