Growing community of inventors

Osaka, Japan

Hirofumi Kinugasa

Average Co-Inventor Count = 4.44

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 = 39

Hirofumi Kinugasa ↔ Yasuo Yoshida (2 patents)Hirofumi Kinugasa ↔ Yoshio Kishima (1 patent)Hirofumi Kinugasa ↔ Teruo Iwanaga (1 patent)Hirofumi Kinugasa ↔ Tadashi Sakurai (1 patent)Hirofumi Kinugasa ↔ Tadashi Kakinuma (1 patent)Hirofumi Kinugasa ↔ Yoshio Kashima (1 patent)Hirofumi KinugasaHirofumi Kinugasa (2 patents)Yasuo YoshidaYasuo Yoshida (4 patents)Yoshio KishimaYoshio Kishima (6 patents)Teruo IwanagaTeruo Iwanaga (3 patents)Tadashi SakuraiTadashi Sakurai (3 patents)Tadashi KakinumaTadashi Kakinuma (1 patent)Yoshio KashimaYoshio Kashima (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Iwasaki Electric Co., Ltd. (2 from 68 patents)

2. Dainippon Plastics Co., Ltd. (2 from 12 patents)


2 patents:

1. 4931655 - Apparatus for accelerated weather-testing of a sample using a metal

2. 4817447 - Weather resistance tester

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12/16/2025
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