Growing community of inventors

Kobe, Japan

Takehiko Naka

Average Co-Inventor Count = 2.50

ph-index = 14

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 = 525

Takehiko NakaKohei Nishikawa (18 patents)Takehiko NakaTakeshi Kato (10 patents)Takehiko NakaYoshiyuki Inada (9 patents)Takehiko NakaTaketoshi Saijo (3 patents)Takehiko NakaKeiji Kubo (2 patents)Takehiko NakaToshio Miyawaki (2 patents)Takehiko NakaZen-ichi Terashita (2 patents)Takehiko NakaHideto Fukushi (2 patents)Takehiko NakaAkira Morimoto (1 patent)Takehiko NakaKatsumi Iga (1 patent)Takehiko NakaYasuyuki Suzuki (1 patent)Takehiko NakaYoshiyasu Furukawa (1 patent)Takehiko NakaAkinobu Nagaoka (1 patent)Takehiko NakaNorio Shimamoto (1 patent)Takehiko NakaMasahiro Suno (1 patent)Takehiko NakaHiroshi Satoh (1 patent)Takehiko NakaTakehiko Naka (34 patents)Kohei NishikawaKohei Nishikawa (66 patents)Takeshi KatoTakeshi Kato (43 patents)Yoshiyuki InadaYoshiyuki Inada (17 patents)Taketoshi SaijoTaketoshi Saijo (9 patents)Keiji KuboKeiji Kubo (24 patents)Toshio MiyawakiToshio Miyawaki (12 patents)Zen-ichi TerashitaZen-ichi Terashita (11 patents)Hideto FukushiHideto Fukushi (6 patents)Akira MorimotoAkira Morimoto (46 patents)Katsumi IgaKatsumi Iga (18 patents)Yasuyuki SuzukiYasuyuki Suzuki (18 patents)Yoshiyasu FurukawaYoshiyasu Furukawa (14 patents)Akinobu NagaokaAkinobu Nagaoka (14 patents)Norio ShimamotoNorio Shimamoto (5 patents)Masahiro SunoMasahiro Suno (5 patents)Hiroshi SatohHiroshi Satoh (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Takeda Chemical Industries, Inc. (30 from 1,858 patents)

2. Takeda Pharmaceutical Company Limited (4 from 1,177 patents)


34 patents:

1. 7538133 - Benzimidazole derivatives, their production and use

2. 7378108 - Percutaneous absorption preparation of compound having angiotensin II antagonistic activity

3. 7153972 - Benzimidazole derivatives, their production and use

4. 6844443 - Benzimidazole derivatives, their production and use

5. 6608210 - Benzimidazole derivatives, their production and use

6. 6355808 - Benzimidazole compounds, their production and use

7. 6232334 - Benzimidazole derivatives, their production and use

8. 6100252 - Heterocyclic compounds and their use as angiotensin antagonists

9. 6020334 - Piperazinones, their production and use

10. 6004989 - Benzimidazole derivatives, their production and use

11. 5962491 - Benzimidazole derivatives and use thereof

12. 5935963 - Piperazinones, their production and use

13. 5883111 - Heterocyclic compounds and their use as angiotensin antagonists

14. 5736555 - Heterocyclic compounds and their use as angiotensin antagonists

15. 5705517 - Benzimidazole derivatives and use thereof

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as of
12/7/2025
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