Growing community of inventors

Kunitachi, Japan

Yuji Hirooka

Average Co-Inventor Count = 1.76

ph-index = 4

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 = 94

Yuji HirookaToshio Takada (4 patents)Yuji HirookaYasushi Fukuoka (1 patent)Yuji HirookaYuji Hirooka (5 patents)Toshio TakadaToshio Takada (26 patents)Yasushi FukuokaYasushi Fukuoka (10 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Toshiba (5 from 52,730 patents)


5 patents:

1. D746809 - Electronic computer

2. D737813 - Electronic computer

3. D562304 - Telephone set

4. D558181 - Telephone set

5. D558182 - Telephone set

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as of
12/20/2025
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