Growing community of inventors

Nagano, Japan

Kojiro Iizuka

Average Co-Inventor Count = 3.60

ph-index = 2

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 = 26

Kojiro IizukaMasaru Takahashi (3 patents)Kojiro IizukaHitoshi Hayakawa (3 patents)Kojiro IizukaHideki Okumura (1 patent)Kojiro IizukaTakashi Akase (1 patent)Kojiro IizukaMitsugu Ota (1 patent)Kojiro IizukaKojiro Iizuka (3 patents)Masaru TakahashiMasaru Takahashi (82 patents)Hitoshi HayakawaHitoshi Hayakawa (29 patents)Hideki OkumuraHideki Okumura (17 patents)Takashi AkaseTakashi Akase (13 patents)Mitsugu OtaMitsugu Ota (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seiko Epson Corporation (3 from 33,490 patents)


3 patents:

1. 6966624 - Liquid spraying device

2. 6595616 - Ink jet type recording apparatus

3. 6578949 - Ink jet recording device and method of driving and controlling the same

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as of
1/9/2026
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