Growing community of inventors

Yamato, Japan

Kiyotaka Nakajima

Average Co-Inventor Count = 5.00

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 = 5

Kiyotaka Nakajima ↔ Shinji Inagaki (2 patents)Kiyotaka Nakajima ↔ Masataka Ohashi (2 patents)Kiyotaka Nakajima ↔ Masao Aoki (2 patents)Kiyotaka Nakajima ↔ Ken-ichi Yamanaka (2 patents)Kiyotaka NakajimaKiyotaka Nakajima (2 patents)Shinji InagakiShinji Inagaki (25 patents)Masataka OhashiMasataka Ohashi (3 patents)Masao AokiMasao Aoki (2 patents)Ken-ichi YamanakaKen-ichi Yamanaka (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Toyota Chuo Kenkyusho (2 from 1,140 patents)


2 patents:

1. 8779277 - Light energy conversion material

2. 8247680 - Light energy conversion material

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as of
1/8/2026
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