Growing community of inventors

Tokyo, Japan

Makoto Nagayama

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

Makoto Nagayama ↔ Hiroshi Imai (1 patent)Makoto Nagayama ↔ Masayuki Kikuchi (1 patent)Makoto Nagayama ↔ Hiroshi Hasegawa (1 patent)Makoto Nagayama ↔ Minoru Shibata (1 patent)Makoto Nagayama ↔ Hiroshi Kogawa (1 patent)Makoto NagayamaMakoto Nagayama (1 patent)Hiroshi ImaiHiroshi Imai (76 patents)Masayuki KikuchiMasayuki Kikuchi (35 patents)Hiroshi HasegawaHiroshi Hasegawa (12 patents)Minoru ShibataMinoru Shibata (2 patents)Hiroshi KogawaHiroshi Kogawa (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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