Growing community of inventors

Atsugi, Japan

Hiroshi Kogawa

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 = 29

Hiroshi Kogawa ↔ Hiroshi Imai (1 patent)Hiroshi Kogawa ↔ Masayuki Kikuchi (1 patent)Hiroshi Kogawa ↔ Hiroshi Hasegawa (1 patent)Hiroshi Kogawa ↔ Minoru Shibata (1 patent)Hiroshi Kogawa ↔ Makoto Nagayama (1 patent)Hiroshi KogawaHiroshi Kogawa (1 patent)Hiroshi ImaiHiroshi Imai (76 patents)Masayuki KikuchiMasayuki Kikuchi (35 patents)Hiroshi HasegawaHiroshi Hasegawa (12 patents)Minoru ShibataMinoru Shibata (2 patents)Makoto NagayamaMakoto Nagayama (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nissan Motor Company Limited (1 from 13,395 patents)

2. Johnan Seisakusho Co., Ltd. (1 from 5 patents)


1 patent:

1. 5090764 - Vehicle body construction for hardtop convertible

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12/8/2025
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