Growing community of inventors

Tokyo, Japan

Yasuyuki Kai

Average Co-Inventor Count = 5.00

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 = 2

Yasuyuki KaiShinsuke Yamazaki (2 patents)Yasuyuki KaiHiroki Sugiyama (1 patent)Yasuyuki KaiFervinia Hipolito Romero (1 patent)Yasuyuki KaiShinjiro Taniguchi (1 patent)Yasuyuki KaiJunichi Ibukuro (1 patent)Yasuyuki KaiYukihiko Oigawa (1 patent)Yasuyuki KaiSatoru Kuramata (1 patent)Yasuyuki KaiYasuyuki Kai (2 patents)Shinsuke YamazakiShinsuke Yamazaki (3 patents)Hiroki SugiyamaHiroki Sugiyama (45 patents)Fervinia Hipolito RomeroFervinia Hipolito Romero (1 patent)Shinjiro TaniguchiShinjiro Taniguchi (1 patent)Junichi IbukuroJunichi Ibukuro (1 patent)Yukihiko OigawaYukihiko Oigawa (1 patent)Satoru KuramataSatoru Kuramata (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tokyo Rope Mfg. Co., Ltd. (2 from 43 patents)

2. Nippon Steel Engineering Co., Ltd. (1 from 59 patents)

3. Nippon Steel & Sumikin Engineering Co., Ltd. (1 from 53 patents)

4. Alpha Kogyo K.k. (1 from 2 patents)


2 patents:

1. 10458063 - Cable and method for manufacturing cable

2. 9958299 - Cable and method for introducing initial tensile strain to optical fiber

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as of
12/9/2025
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