Growing community of inventors

Tokyo, Japan

Masami Ookuma

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 = 0

Masami OokumaShinichi Nonaka (1 patent)Masami OokumaYasuhiro Takada (1 patent)Masami OokumaTakayuki Miki (1 patent)Masami OokumaKiyoo Kamei (1 patent)Masami OokumaToshinori Nishiyama (1 patent)Masami OokumaMasami Ookuma (1 patent)Shinichi NonakaShinichi Nonaka (10 patents)Yasuhiro TakadaYasuhiro Takada (7 patents)Takayuki MikiTakayuki Miki (5 patents)Kiyoo KameiKiyoo Kamei (3 patents)Toshinori NishiyamaToshinori Nishiyama (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Dic Corporation (1 from 772 patents)


1 patent:

1. 10950363 - Active material for negative electrodes of nonaqueous secondary batteries, and nonaqueous secondary battery

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1/13/2026
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