Growing community of inventors

Yokkaichi, Japan

Takeshi Hatakeyama

Average Co-Inventor Count = 6.15

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 = 24

Takeshi HatakeyamaHiroshi Yui (2 patents)Takeshi HatakeyamaMichiya Okamura (2 patents)Takeshi HatakeyamaKazuhide Hayama (1 patent)Takeshi HatakeyamaKazuyuki Hata (1 patent)Takeshi HatakeyamaMichio Ohmori (1 patent)Takeshi HatakeyamaKatsuhiko Yamada (1 patent)Takeshi HatakeyamaNorio Matsuo (1 patent)Takeshi HatakeyamaKouich Sagisaka (1 patent)Takeshi HatakeyamaShuji Hamano (1 patent)Takeshi HatakeyamaTakeshi Hatakeyama (2 patents)Hiroshi YuiHiroshi Yui (23 patents)Michiya OkamuraMichiya Okamura (10 patents)Kazuhide HayamaKazuhide Hayama (37 patents)Kazuyuki HataKazuyuki Hata (9 patents)Michio OhmoriMichio Ohmori (5 patents)Katsuhiko YamadaKatsuhiko Yamada (4 patents)Norio MatsuoNorio Matsuo (2 patents)Kouich SagisakaKouich Sagisaka (1 patent)Shuji HamanoShuji Hamano (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Petrochemical Company Limited (2 from 546 patents)


2 patents:

1. 5153247 - Injection-molded product with superior dimensional precision

2. 5098610 - Conductive thermoplastic resin composition

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as of
12/8/2025
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