Growing community of inventors

Osaka, Japan

Hidekazu Kai

Average Co-Inventor Count = 3.20

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 = 42

Hidekazu Kai ↔ Hiroshi Kamikubo (2 patents)Hidekazu Kai ↔ Masuo Kamitaka (1 patent)Hidekazu Kai ↔ Yoshio Inui (1 patent)Hidekazu Kai ↔ Masao Miyamoto (1 patent)Hidekazu Kai ↔ Masayoshi Osaka (1 patent)Hidekazu Kai ↔ Mitsuo Tanaka (1 patent)Hidekazu Kai ↔ Tooru Hasegawa (1 patent)Hidekazu KaiHidekazu Kai (2 patents)Hiroshi KamikuboHiroshi Kamikubo (2 patents)Masuo KamitakaMasuo Kamitaka (4 patents)Yoshio InuiYoshio Inui (3 patents)Masao MiyamotoMasao Miyamoto (2 patents)Masayoshi OsakaMasayoshi Osaka (2 patents)Mitsuo TanakaMitsuo Tanaka (2 patents)Tooru HasegawaTooru Hasegawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sharp Kabushiki Kaisha Corporation (2 from 25,550 patents)


2 patents:

1. 5222792 - Opening/closing device of a door member

2. 5064255 - Opening/closing device of a door member

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as of
12/29/2025
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