Growing community of inventors

Saitama, Japan

Gunji Ishihara

Average Co-Inventor Count = 6.67

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 = 1

Gunji IshiharaTakashi Yamaguchi (88 patents)Gunji IshiharaTakashi Yamaguchi (3 patents)Gunji IshiharaTaketoshi Ito (3 patents)Gunji IshiharaTakenori Kaneda (2 patents)Gunji IshiharaKohei Tanaka (2 patents)Gunji IshiharaKenichi Ninomiya (2 patents)Gunji IshiharaHiroyuki Fujitsuka (2 patents)Gunji IshiharaShuanglei Li (2 patents)Gunji IshiharaHiromichi Kanzaki (1 patent)Gunji IshiharaOki Nagashima (1 patent)Gunji IshiharaGunji Ishihara (3 patents)Takashi YamaguchiTakashi Yamaguchi (88 patents)Takashi YamaguchiTakashi Yamaguchi (55 patents)Taketoshi ItoTaketoshi Ito (4 patents)Takenori KanedaTakenori Kaneda (64 patents)Kohei TanakaKohei Tanaka (44 patents)Kenichi NinomiyaKenichi Ninomiya (41 patents)Hiroyuki FujitsukaHiroyuki Fujitsuka (27 patents)Shuanglei LiShuanglei Li (2 patents)Hiromichi KanzakiHiromichi Kanzaki (4 patents)Oki NagashimaOki Nagashima (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Wacom Co., Ltd. (3 from 1,259 patents)


3 patents:

1. 11269464 - Electronic pen and cartridge for electronic pen

2. 11010002 - Electronic pen and cartridge for electronic pen

3. 9665190 - Position indicator and manufacturing method thereof

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as of
1/10/2026
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