Growing community of inventors

Osaka, Japan

Takumi Shirai

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 = 23

Takumi ShiraiShogo Nakayama (1 patent)Takumi ShiraiMasato Hashimoto (1 patent)Takumi ShiraiSeiji Tsuda (1 patent)Takumi ShiraiNaohiro Takashima (1 patent)Takumi ShiraiShoji Mori (1 patent)Takumi ShiraiTakumi Shirai (1 patent)Shogo NakayamaShogo Nakayama (14 patents)Masato HashimotoMasato Hashimoto (11 patents)Seiji TsudaSeiji Tsuda (9 patents)Naohiro TakashimaNaohiro Takashima (4 patents)Shoji MoriShoji Mori (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Matsushita Electric Industrial Co., Ltd. (1 from 27,375 patents)


1 patent:

1. 6150920 - Resistor and its manufacturing method

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12/14/2025
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