Growing community of inventors

Yokkaichi, Japan

Tiaki Umezawa

Average Co-Inventor Count = 5.36

ph-index = 3

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 = 88

Tiaki UmezawaKazunori Oshima (3 patents)Tiaki UmezawaTakashi Ushikubo (3 patents)Tiaki UmezawaKen-ichi Kiyono (3 patents)Tiaki UmezawaItaru Sawaki (2 patents)Tiaki UmezawaAtsushi Kayo (2 patents)Tiaki UmezawaHiroya Nakamura (1 patent)Tiaki UmezawaTiaki Umezawa (3 patents)Kazunori OshimaKazunori Oshima (34 patents)Takashi UshikuboTakashi Ushikubo (13 patents)Ken-ichi KiyonoKen-ichi Kiyono (4 patents)Itaru SawakiItaru Sawaki (9 patents)Atsushi KayoAtsushi Kayo (3 patents)Hiroya NakamuraHiroya Nakamura (159 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Kasei Corporation (2 from 499 patents)

2. Mitsubishi Chemical Corporation (1 from 2,347 patents)


3 patents:

1. 5472925 - Catalyst for the production of nitriles

2. 5281745 - Process for producing nitriles

3. 5231214 - Process for producing nitriles

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as of
12/12/2025
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