Growing community of inventors

Tokyo, Japan

Takashi Ohtu

Average Co-Inventor Count = 7.00

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

Takashi OhtuTadamasa Hayashi (1 patent)Takashi OhtuSyuichi Ueno (1 patent)Takashi OhtuToyoshi Mizushima (1 patent)Takashi OhtuJyunichi Yamaji (1 patent)Takashi OhtuMasashi Fukuhara (1 patent)Takashi OhtuToshiyuki Koya (1 patent)Takashi OhtuTakashi Ohtu (1 patent)Tadamasa HayashiTadamasa Hayashi (5 patents)Syuichi UenoSyuichi Ueno (5 patents)Toyoshi MizushimaToyoshi Mizushima (4 patents)Jyunichi YamajiJyunichi Yamaji (1 patent)Masashi FukuharaMasashi Fukuhara (1 patent)Toshiyuki KoyaToshiyuki Koya (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ebara Corporation (1 from 2,514 patents)


1 patent:

1. 5504307 - Heat transfer material for heating and heating unit and heating

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as of
1/9/2026
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