Growing community of inventors

Hiroshima, Japan

Hiroshi Hayakawa

Average Co-Inventor Count = 1.89

ph-index = 3

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 = 51

Hiroshi HayakawaKazuo Okamoto (1 patent)Hiroshi HayakawaMasamiti Kogai (1 patent)Hiroshi HayakawaHiroyasu Nagaoka (1 patent)Hiroshi HayakawaMasafumi Kobayashi (1 patent)Hiroshi HayakawaHiroaki Maenishi (1 patent)Hiroshi HayakawaHiroshi Hayakawa (3 patents)Kazuo OkamotoKazuo Okamoto (3 patents)Masamiti KogaiMasamiti Kogai (3 patents)Hiroyasu NagaokaHiroyasu Nagaoka (2 patents)Masafumi KobayashiMasafumi Kobayashi (2 patents)Hiroaki MaenishiHiroaki Maenishi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mazda Motor Corporation (2 from 4,680 patents)

2. Toyo Kogyo Co., Ltd. (1 from 264 patents)


3 patents:

1. 4930213 - System for transferring vehicle body from a coating station to an

2. 4665832 - Vehicle transfer system

3. 4381656 - Automobile door assembly having a door locking device

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as of
12/18/2025
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