Growing community of inventors

Kitakyushu, Japan

Ryoji Akamine

Average Co-Inventor Count = 7.00

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 = 1

Ryoji Akamine ↔ Yoichi Kawano (1 patent)Ryoji Akamine ↔ Taisa Ikeda (1 patent)Ryoji Akamine ↔ Kazuki Tagawa (1 patent)Ryoji Akamine ↔ Hiroshi Ono (1 patent)Ryoji Akamine ↔ Hideki Ono (1 patent)Ryoji Akamine ↔ Keiji Taura (1 patent)Ryoji Akamine ↔ Hideki Ono (0 patent)Ryoji Akamine ↔ Hiroshi Ono (0 patent)Ryoji AkamineRyoji Akamine (1 patent)Yoichi KawanoYoichi Kawano (6 patents)Taisa IkedaTaisa Ikeda (4 patents)Kazuki TagawaKazuki Tagawa (3 patents)Hiroshi OnoHiroshi Ono (2 patents)Hideki OnoHideki Ono (2 patents)Keiji TauraKeiji Taura (1 patent)Hideki OnoHideki Ono (0 patent)Hiroshi OnoHiroshi Ono (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nippon Steel Chemical Co., Ltd. (1 from 173 patents)

2. Nippon Steel & Sumikin Chemical Co., Ltd. (88 patents)


1 patent:

1. 9070933 - Negative electrode active material of lithium secondary battery, secondary battery using the same, method for manufacturing the same

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12/29/2025
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