Growing community of inventors

Nara, Japan

Eiji Ishiguro

Average Co-Inventor Count = 6.00

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 = 9

Eiji Ishiguro ↔ Kichiya Tanino (1 patent)Eiji Ishiguro ↔ Masaru Koeda (1 patent)Eiji Ishiguro ↔ Tetsuya Nagano (1 patent)Eiji Ishiguro ↔ Kazuo Sano (1 patent)Eiji Ishiguro ↔ Yasuhiro Akune (1 patent)Eiji IshiguroEiji Ishiguro (1 patent)Kichiya TaninoKichiya Tanino (14 patents)Masaru KoedaMasaru Koeda (6 patents)Tetsuya NaganoTetsuya Nagano (4 patents)Kazuo SanoKazuo Sano (3 patents)Yasuhiro AkuneYasuhiro Akune (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shimadzu Corporation (1 from 3,507 patents)

2. Nippon Packing Co., Ltd. (1 from 1 patent)


1 patent:

1. 5363238 - Diffraction grating

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as of
12/19/2025
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