Growing community of inventors

Tokyo-to, Japan

Rumiko Matsuo

Average Co-Inventor Count = 10.00

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 = 0

Rumiko Matsuo ↔ Yukio Sugita (1 patent)Rumiko Matsuo ↔ Naoki Shiraishi (1 patent)Rumiko Matsuo ↔ Fumie Yamazaki (1 patent)Rumiko Matsuo ↔ Satoshi Shioda (1 patent)Rumiko Matsuo ↔ Mitsuyoshi Tamura (1 patent)Rumiko Matsuo ↔ Masaki Inumaru (1 patent)Rumiko Matsuo ↔ Takao Otomaru (1 patent)Rumiko Matsuo ↔ Eiichi Miyata (1 patent)Rumiko Matsuo ↔ Tatsuro Ishitobi (1 patent)Rumiko MatsuoRumiko Matsuo (1 patent)Yukio SugitaYukio Sugita (34 patents)Naoki ShiraishiNaoki Shiraishi (16 patents)Fumie YamazakiFumie Yamazaki (15 patents)Satoshi ShiodaSatoshi Shioda (13 patents)Mitsuyoshi TamuraMitsuyoshi Tamura (12 patents)Masaki InumaruMasaki Inumaru (4 patents)Takao OtomaruTakao Otomaru (3 patents)Eiichi MiyataEiichi Miyata (2 patents)Tatsuro IshitobiTatsuro Ishitobi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Dnp Fine Chemicals Co., Ltd. (1 from 19 patents)


1 patent:

1. 8841356 - Ink composition

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12/27/2025
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