Growing community of inventors

Otsu, Japan

Ukon Ishihara

Average Co-Inventor Count = 5.00

ph-index = 2

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

Ukon Ishihara ↔ Takeshi Nagata (2 patents)Ukon Ishihara ↔ Narutoshi Shimatani (2 patents)Ukon Ishihara ↔ Toshimasa Kanai (2 patents)Ukon Ishihara ↔ Tsutomu Imamura (2 patents)Ukon IshiharaUkon Ishihara (2 patents)Takeshi NagataTakeshi Nagata (15 patents)Narutoshi ShimataniNarutoshi Shimatani (11 patents)Toshimasa KanaiToshimasa Kanai (8 patents)Tsutomu ImamuraTsutomu Imamura (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nippon Electric Glass Co., Ltd. (2 from 606 patents)


2 patents:

1. 7718929 - Cooking top plate

2. 7208703 - Cooking top plate

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as of
1/11/2026
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