Growing community of inventors

Tokyo, Japan

Hiroyuki Matsunaga

Average Co-Inventor Count = 13.00

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 = 21

Hiroyuki MatsunagaEiji Yoshida (4 patents)Hiroyuki MatsunagaYusuke Yoshida (4 patents)Hiroyuki MatsunagaSatoshi Otake (4 patents)Hiroyuki MatsunagaHiroki Matsumoto (4 patents)Hiroyuki MatsunagaSatomi Kudo (4 patents)Hiroyuki MatsunagaEri Kawaguchi (4 patents)Hiroyuki MatsunagaIkuo Andreas Nakayama (4 patents)Hiroyuki MatsunagaKeiichi Yahagi (4 patents)Hiroyuki MatsunagaYuta Ogino (4 patents)Hiroyuki MatsunagaTatsuro Ishimatsu (4 patents)Hiroyuki MatsunagaSyotaro Nakajima (4 patents)Hiroyuki MatsunagaKagenori Nagao (4 patents)Hiroyuki MatsunagaHiroyuki Matsunaga (4 patents)Eiji YoshidaEiji Yoshida (29 patents)Yusuke YoshidaYusuke Yoshida (27 patents)Satoshi OtakeSatoshi Otake (9 patents)Hiroki MatsumotoHiroki Matsumoto (6 patents)Satomi KudoSatomi Kudo (4 patents)Eri KawaguchiEri Kawaguchi (4 patents)Ikuo Andreas NakayamaIkuo Andreas Nakayama (4 patents)Keiichi YahagiKeiichi Yahagi (4 patents)Yuta OginoYuta Ogino (4 patents)Tatsuro IshimatsuTatsuro Ishimatsu (4 patents)Syotaro NakajimaSyotaro Nakajima (4 patents)Kagenori NagaoKagenori Nagao (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (3 from 832,718 patents)

2. Eiji Yoshida (1 from 1 patent)


4 patents:

1. 7299601 - Device for exchanging a bottle closure

2. 7287670 - Device unit, and system for fluid extraction

3. 7162851 - Method for changing a stopper

4. 7032364 - Plug replacing device and plug replacing method

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12/9/2025
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