Growing community of inventors

Tsukubasi, Japan

Takayuki Sima

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 = 3

Takayuki SimaIn-sik Park (1 patent)Takayuki SimaJunji Tominaga (1 patent)Takayuki SimaJoo-Ho Kim (1 patent)Takayuki SimaMasashi Kuwahara (1 patent)Takayuki SimaTakayuki Sima (1 patent)In-sik ParkIn-sik Park (199 patents)Junji TominagaJunji Tominaga (61 patents)Joo-Ho KimJoo-Ho Kim (16 patents)Masashi KuwaharaMasashi Kuwahara (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Samsung Electronics Co., Ltd. (1 from 132,083 patents)

2. National Institute of Advanced Industrial Science and Technology (1 from 1,717 patents)


1 patent:

1. 7435468 - Multi-layer structure and method of drawing microscopic structure therein, optical disc master and method of fabricating the same using the multi-layer structure, and optical disc manufactured using the optical disc master

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1/22/2026
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