Growing community of inventors

Tokyo, Japan

Keisuke Tajima

Average Co-Inventor Count = 3.00

ph-index = 2

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 = 10

Keisuke Tajima ↔ Shuuji Oonaka (2 patents)Keisuke Tajima ↔ Kouta Yoshizawa (1 patent)Keisuke Tajima ↔ Hiroyuki Ooshima (1 patent)Keisuke TajimaKeisuke Tajima (2 patents)Shuuji OonakaShuuji Oonaka (3 patents)Kouta YoshizawaKouta Yoshizawa (3 patents)Hiroyuki OoshimaHiroyuki Ooshima (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Chemical Corporation (2 from 2,354 patents)


2 patents:

1. D744123 - LED bulb

2. D743058 - LED bulb

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1/16/2026
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