Growing community of inventors

Tokyo, Japan

Yohei Sakai

Average Co-Inventor Count = 2.86

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 = 4

Yohei SakaiYusuke Nakagawa (1 patent)Yohei SakaiNorio Yamaguchi (1 patent)Yohei SakaiFukashi Yoshizawa (10 patents)Yohei SakaiTakashi Togami (1 patent)Yohei SakaiKyosuke Yamamoto (1 patent)Yohei SakaiYasutaka Kosugi (1 patent)Yohei SakaiYohei Sakai (2 patents)Yusuke NakagawaYusuke Nakagawa (111 patents)Norio YamaguchiNorio Yamaguchi (11 patents)Fukashi YoshizawaFukashi Yoshizawa (10 patents)Takashi TogamiTakashi Togami (2 patents)Kyosuke YamamotoKyosuke Yamamoto (2 patents)Yasutaka KosugiYasutaka Kosugi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Olympus Corporation (1 from 8,173 patents)

2. Ps Solutions Corp. (1 from 1 patent)

3. Softbank Corporation (144 patents)


2 patents:

1. 12041330 - Optical module for endoscope and endoscope

2. 10262244 - Image evaluation method

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as of
11/21/2025
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