Growing community of inventors

Kanagawa, Japan

Toyokazu Hiranuma

Average Co-Inventor Count = 7.92

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 = 13

Toyokazu HiranumaTakashi Ando (3 patents)Toyokazu HiranumaMasao Koyama (3 patents)Toyokazu HiranumaChika Kikuchi (3 patents)Toyokazu HiranumaOsamu Ushiroda (3 patents)Toyokazu HiranumaMasayo Okuno (3 patents)Toyokazu HiranumaEriko Morita (2 patents)Toyokazu HiranumaKazuyuki Fuji (2 patents)Toyokazu HiranumaMasako Imai (1 patent)Toyokazu HiranumaHiroshi Nagaso (1 patent)Toyokazu HiranumaToyokazu Hiranuma (3 patents)Takashi AndoTakashi Ando (540 patents)Masao KoyamaMasao Koyama (26 patents)Chika KikuchiChika Kikuchi (7 patents)Osamu UshirodaOsamu Ushiroda (5 patents)Masayo OkunoMasayo Okuno (3 patents)Eriko MoritaEriko Morita (2 patents)Kazuyuki FujiKazuyuki Fuji (2 patents)Masako ImaiMasako Imai (2 patents)Hiroshi NagasoHiroshi Nagaso (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Meiji Seika Kaisha, Ltd. (3 from 382 patents)


3 patents:

1. 6498251 - Tetrahydrobenzindole derivatives

2. 6407112 - Optically active tetrahydrobenzindole derivative

3. 6355642 - Tetrahydrobenzindole compounds

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as of
12/4/2025
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