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Yokohama, Japan

Keishichi Namba

Average Co-Inventor Count = 9.00

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 = 7

Keishichi Namba ↔ Hiroshi Shimura (1 patent)Keishichi Namba ↔ Fumitaka Abukawa (1 patent)Keishichi Namba ↔ Hitoshi Goi (1 patent)Keishichi Namba ↔ Kazuyoshi Fujita (1 patent)Keishichi Namba ↔ Nobuo Nishioka (1 patent)Keishichi Namba ↔ Yuichi Takasu (1 patent)Keishichi Namba ↔ Yoshiaki Shimizu (1 patent)Keishichi Namba ↔ Tadayoshi Juge (1 patent)Keishichi NambaKeishichi Namba (1 patent)Hiroshi ShimuraHiroshi Shimura (37 patents)Fumitaka AbukawaFumitaka Abukawa (8 patents)Hitoshi GoiHitoshi Goi (6 patents)Kazuyoshi FujitaKazuyoshi Fujita (2 patents)Nobuo NishiokaNobuo Nishioka (1 patent)Yuichi TakasuYuichi Takasu (1 patent)Yoshiaki ShimizuYoshiaki Shimizu (1 patent)Tadayoshi JugeTadayoshi Juge (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Jidosha Kogyo Kabushiki Kaisha (1 from 1,625 patents)

2. Tokyo Heat Treating Company, Ltd. (1 from 3 patents)


1 patent:

1. 4950334 - Gas carburizing method and apparatus

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12/18/2025
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