Growing community of inventors

Osaka, Japan

Takehiko Ohkawa

Average Co-Inventor Count = 5.21

ph-index = 8

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 = 284

Takehiko OhkawaTeruo Kyoto Oku (6 patents)Takehiko OhkawaHiroyuki Setoi (6 patents)Takehiko OhkawaTatsuya Zenkoh (5 patents)Takehiko OhkawaYuki Sawada (4 patents)Takehiko OhkawaMasashi Hashimoto (3 patents)Takehiko OhkawaHirokazu Tanaka (3 patents)Takehiko OhkawaKentaro Sato (3 patents)Takehiko OhkawaHitoshi Sawada (3 patents)Takehiko OhkawaIchiro Shima (3 patents)Takehiko OhkawaKeiji Hemmi (2 patents)Takehiko OhkawaChiyoshi Kasahara (2 patents)Takehiko OhkawaNaoki Ishibashi (2 patents)Takehiko OhkawaKenichiro Imamura (2 patents)Takehiko OhkawaTakeshi Murakami (1 patent)Takehiko OhkawaSeiji Yoshimura (1 patent)Takehiko OhkawaRyota Shiraki (1 patent)Takehiko OhkawaAkio Kuroda (1 patent)Takehiko OhkawaKazuhiko Ohne (1 patent)Takehiko OhkawaToshio Kurosaki (1 patent)Takehiko OhkawaHiroki Fukudome (1 patent)Takehiko OhkawaTomoaki Kawano (1 patent)Takehiko OhkawaHirofumi Ishii (1 patent)Takehiko OhkawaMitsuru Hosaka (1 patent)Takehiko OhkawaKazuhiko Osoda (1 patent)Takehiko OhkawaYutaka Inoki (1 patent)Takehiko OhkawaCiyoshi Kasahara (1 patent)Takehiko OhkawaAiko Wada (1 patent)Takehiko OhkawaTakehiko Ohkawa (13 patents)Teruo Kyoto OkuTeruo Kyoto Oku (88 patents)Hiroyuki SetoiHiroyuki Setoi (19 patents)Tatsuya ZenkohTatsuya Zenkoh (6 patents)Yuki SawadaYuki Sawada (29 patents)Masashi HashimotoMasashi Hashimoto (186 patents)Hirokazu TanakaHirokazu Tanaka (76 patents)Kentaro SatoKentaro Sato (28 patents)Hitoshi SawadaHitoshi Sawada (12 patents)Ichiro ShimaIchiro Shima (10 patents)Keiji HemmiKeiji Hemmi (48 patents)Chiyoshi KasaharaChiyoshi Kasahara (12 patents)Naoki IshibashiNaoki Ishibashi (9 patents)Kenichiro ImamuraKenichiro Imamura (6 patents)Takeshi MurakamiTakeshi Murakami (88 patents)Seiji YoshimuraSeiji Yoshimura (37 patents)Ryota ShirakiRyota Shiraki (12 patents)Akio KurodaAkio Kuroda (11 patents)Kazuhiko OhneKazuhiko Ohne (10 patents)Toshio KurosakiToshio Kurosaki (5 patents)Hiroki FukudomeHiroki Fukudome (4 patents)Tomoaki KawanoTomoaki Kawano (4 patents)Hirofumi IshiiHirofumi Ishii (1 patent)Mitsuru HosakaMitsuru Hosaka (1 patent)Kazuhiko OsodaKazuhiko Osoda (1 patent)Yutaka InokiYutaka Inoki (1 patent)Ciyoshi KasaharaCiyoshi Kasahara (1 patent)Aiko WadaAiko Wada (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fujisawa Pharmaceutical Company, Ltd. (10 from 940 patents)

2. Astellas Pharma Gmbh (3 from 417 patents)


13 patents:

1. 7776897 - Triazole derivative or salt thereof

2. 7186731 - 2-cyanopyrrolidinecarboxamide compound

3. 7129243 - Peptide compounds

4. 6825200 - Substituted dipeptides having nos inhibiting activity

5. 6495542 - Benzamide derivatives as vasopressin antagonists

6. 6316482 - Benzamide derivatives having a vasopressin antagonistic activity

7. 6211242 - Benzamide derivatives as vasopressin antagonists

8. 6207693 - Benzamide derivatives having a vasopressin antagonistic activity

9. 6054457 - Benzamide derivatives and their use as vasopressin antagonists

10. 5789405 - Oxaspiro(2,5)octane derivative

11. 5767293 - Oxaspiro�2,5! octane derivative

12. 5521170 - Benzamide derivatives and pharmaceutical composition comprising the same

13. 4954496 - Cyclohexane derivatives and pharmaceutical compositions

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as of
1/5/2026
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