Growing community of inventors

Tokyo, Japan

Tadashi Nagakawa

Average Co-Inventor Count = 7.00

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 = 67

Tadashi NagakawaAkio Tajima (1 patent)Tadashi NagakawaHiroyuki Harada (1 patent)Tadashi NagakawaHaruo Inoue (1 patent)Tadashi NagakawaTsuyoshi Hayakawa (1 patent)Tadashi NagakawaTakashi Kogo (1 patent)Tadashi NagakawaHajima Oda (1 patent)Tadashi NagakawaTadashi Nagakawa (1 patent)Akio TajimaAkio Tajima (91 patents)Hiroyuki HaradaHiroyuki Harada (40 patents)Haruo InoueHaruo Inoue (37 patents)Tsuyoshi HayakawaTsuyoshi Hayakawa (10 patents)Takashi KogoTakashi Kogo (3 patents)Hajima OdaHajima Oda (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seikosha Co., Ltd. (1 from 696 patents)


1 patent:

1. 5336004 - Dot printer

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as of
12/7/2025
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