Growing community of inventors

Chikuma, Japan

Kayoko Kitta

Average Co-Inventor Count = 10.42

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 = 150

Kayoko KittaTakeshi Murakami (4 patents)Kayoko KittaYoshinori Kobayashi (4 patents)Kayoko KittaAtsushi Noda (4 patents)Kayoko KittaHiroshi Tomiyama (4 patents)Kayoko KittaKazuhiro Ikegai (4 patents)Kayoko KittaMasakazu Imamura (4 patents)Kayoko KittaEiji Kurosaki (4 patents)Kayoko KittaTakashi Sugane (3 patents)Kayoko KittaRyota Shiraki (3 patents)Kayoko KittaFumiyoshi Iwasaki (3 patents)Kayoko KittaTakeshi Murakami (1 patent)Kayoko KittaTakayuki Suzuki (1 patent)Kayoko KittaRyota Astellas Pharma Inc Shiraki (0 patent)Kayoko KittaKayoko Kitta (4 patents)Takeshi MurakamiTakeshi Murakami (88 patents)Yoshinori KobayashiYoshinori Kobayashi (46 patents)Atsushi NodaAtsushi Noda (31 patents)Hiroshi TomiyamaHiroshi Tomiyama (19 patents)Kazuhiro IkegaiKazuhiro Ikegai (10 patents)Masakazu ImamuraMasakazu Imamura (9 patents)Eiji KurosakiEiji Kurosaki (4 patents)Takashi SuganeTakashi Sugane (12 patents)Ryota ShirakiRyota Shiraki (12 patents)Fumiyoshi IwasakiFumiyoshi Iwasaki (4 patents)Takeshi MurakamiTakeshi Murakami (1 patent)Takayuki SuzukiTakayuki Suzuki (17 patents)Ryota Astellas Pharma Inc ShirakiRyota Astellas Pharma Inc Shiraki (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Astellas Pharma Gmbh (4 from 417 patents)

2. Kotobuki Pharmaceutical Co Ltd (3 from 27 patents)

3. Kotobuki Pharmaceuticals Co., Ltd. (1 from 2 patents)


4 patents:

1. 7977466 - C-glycoside derivatives and salts thereof

2. 7772407 - C-glycoside derivatives and salts thereof

3. 7202350 - C-glycoside derivatives and salts thereof

4. 7169761 - Azulene derivatives and salts thereof

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as of
1/3/2026
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