Growing community of inventors

Kitakyushu, Japan

Takayuki Ohtani

Average Co-Inventor Count = 4.80

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 = 32

Takayuki Ohtani ↔ Kenichi Nagato (1 patent)Takayuki Ohtani ↔ Tatsuhiro Kosugi (1 patent)Takayuki Ohtani ↔ Nobuyuki Ashie (1 patent)Takayuki Ohtani ↔ Masami Hiasa (1 patent)Takayuki Ohtani ↔ Taiji Sugita (1 patent)Takayuki Ohtani ↔ Yoshitaka Suehiro (1 patent)Takayuki Ohtani ↔ Kunihiko Teshima (1 patent)Takayuki Ohtani ↔ Susumu Saito (1 patent)Takayuki OhtaniTakayuki Ohtani (2 patents)Kenichi NagatoKenichi Nagato (8 patents)Tatsuhiro KosugiTatsuhiro Kosugi (4 patents)Nobuyuki AshieNobuyuki Ashie (2 patents)Masami HiasaMasami Hiasa (1 patent)Taiji SugitaTaiji Sugita (1 patent)Yoshitaka SuehiroYoshitaka Suehiro (1 patent)Kunihiko TeshimaKunihiko Teshima (1 patent)Susumu SaitoSusumu Saito (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toto Ltd. (2 from 1,192 patents)


2 patents:

1. 6502251 - Water closet and flushing water feed device

2. 5607595 - Process for purifying water

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as of
12/20/2025
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