Growing community of inventors

Naruto, Japan

Kazuhisa Doi

Average Co-Inventor Count = 3.60

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 = 1

Kazuhisa DoiKoushi Iwata (1 patent)Kazuhisa DoiYasutaka Fujita (1 patent)Kazuhisa DoiShuji Kamikawa (1 patent)Kazuhisa DoiYujiro Morioka (1 patent)Kazuhisa DoiTakeshi Kawano (1 patent)Kazuhisa DoiKyo Aizawa (1 patent)Kazuhisa DoiYoshihisa Iida (1 patent)Kazuhisa DoiTakashi Shimoida (1 patent)Kazuhisa DoiYasuhiro Kotani (1 patent)Kazuhisa DoiYoshihisa Iida (1 patent)Kazuhisa DoiYasuhiro Kotani (1 patent)Kazuhisa DoiKazuhisa Doi (3 patents)Koushi IwataKoushi Iwata (7 patents)Yasutaka FujitaYasutaka Fujita (4 patents)Shuji KamikawaShuji Kamikawa (1 patent)Yujiro MoriokaYujiro Morioka (1 patent)Takeshi KawanoTakeshi Kawano (1 patent)Kyo AizawaKyo Aizawa (1 patent)Yoshihisa IidaYoshihisa Iida (1 patent)Takashi ShimoidaTakashi Shimoida (1 patent)Yasuhiro KotaniYasuhiro Kotani (1 patent)Yoshihisa IidaYoshihisa Iida (2 patents)Yasuhiro KotaniYasuhiro Kotani (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Otsuka Pharmaceutical Factory, Inc. (3 from 188 patents)

2. Toyo Sugar Refining Co., Ltd. (1 from 1 patent)


3 patents:

1. 12005070 - Protective agent for keratoconjunctiva or suppressive agent for keratoconjunctival disorder

2. 8926548 - Agent for preventing bleeding from cerebral cortical vein

3. 8409624 - Artificial cerebrospinal fluid

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as of
12/28/2025
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