Growing community of inventors

Gunma, Japan

Keishiro Igarashi

Average Co-Inventor Count = 4.00

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

Keishiro Igarashi ↔ Takashi Ogawa (1 patent)Keishiro Igarashi ↔ Masaaki Takezawa (1 patent)Keishiro Igarashi ↔ Norio Hayashi (1 patent)Keishiro IgarashiKeishiro Igarashi (1 patent)Takashi OgawaTakashi Ogawa (38 patents)Masaaki TakezawaMasaaki Takezawa (9 patents)Norio HayashiNorio Hayashi (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sanyo Electric Co., Ltd. (1 from 8,780 patents)


1 patent:

1. 5506486 - Control apparatus for compressor with induction motor

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as of
12/21/2025
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