Growing community of inventors

Chiba, Japan

Sei Nakajima

Average Co-Inventor Count = 11.00

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 = 58

Sei Nakajima ↔ Hideshi Kawachi (2 patents)Sei Nakajima ↔ Fumio Yoshii (2 patents)Sei Nakajima ↔ Keizo Makuuchi (2 patents)Sei Nakajima ↔ Mikio Nakagawa (2 patents)Sei Nakajima ↔ Hideo Kushida (2 patents)Sei Nakajima ↔ Masanobu Ishiyama (2 patents)Sei Nakajima ↔ Yasuo Futami (2 patents)Sei Nakajima ↔ Takahiro Kurihara (2 patents)Sei Nakajima ↔ Gen Miyamoto (2 patents)Sei Nakajima ↔ Ryoji Sugawara (2 patents)Sei NakajimaSei Nakajima (2 patents)Hideshi KawachiHideshi Kawachi (16 patents)Fumio YoshiiFumio Yoshii (16 patents)Keizo MakuuchiKeizo Makuuchi (15 patents)Mikio NakagawaMikio Nakagawa (13 patents)Hideo KushidaHideo Kushida (10 patents)Masanobu IshiyamaMasanobu Ishiyama (5 patents)Yasuo FutamiYasuo Futami (4 patents)Takahiro KuriharaTakahiro Kurihara (2 patents)Gen MiyamotoGen Miyamoto (2 patents)Ryoji SugawaraRyoji Sugawara (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsui Petrochemical Industries, Ltd. (2 from 1,008 patents)

2. Yoshino Kogyosho Co., Ltd. (2 from 665 patents)

3. Japan Atomic Energy Research Institute (2 from 321 patents)


2 patents:

1. 5725715 - Squeezable tubular container and process for the production thereof

2. 5565160 - Squeezable tubular container and process for the production thereof

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12/29/2025
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