Growing community of inventors

Hitachi, Japan

Hayato Imai

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 = 11

Hayato Imai ↔ Kiyoshi Nakamura (1 patent)Hayato Imai ↔ Yoshio Tsutsui (1 patent)Hayato Imai ↔ Akira Kimura (1 patent)Hayato Imai ↔ Shozuchi Miura (1 patent)Hayato Imai ↔ Kaoru Tamura (1 patent)Hayato ImaiHayato Imai (1 patent)Kiyoshi NakamuraKiyoshi Nakamura (43 patents)Yoshio TsutsuiYoshio Tsutsui (13 patents)Akira KimuraAkira Kimura (5 patents)Shozuchi MiuraShozuchi Miura (3 patents)Kaoru TamuraKaoru Tamura (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (1 from 42,485 patents)


1 patent:

1. 4700283 - Control system for an electric locomotive having AC to DC converters

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as of
12/8/2025
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