Growing community of inventors

Shibuya-ku, Japan

Kazuhiko Otaka

Average Co-Inventor Count = 6.00

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

Kazuhiko Otaka ↔ Takashi Yamamoto (1 patent)Kazuhiko Otaka ↔ Yukio Sato (1 patent)Kazuhiko Otaka ↔ Yoshihiko Shirosaki (1 patent)Kazuhiko Otaka ↔ Junichi Uneya (1 patent)Kazuhiko Otaka ↔ Tasuku Suzuki (1 patent)Kazuhiko OtakaKazuhiko Otaka (1 patent)Takashi YamamotoTakashi Yamamoto (71 patents)Yukio SatoYukio Sato (21 patents)Yoshihiko ShirosakiYoshihiko Shirosaki (2 patents)Junichi UneyaJunichi Uneya (1 patent)Tasuku SuzukiTasuku Suzuki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nsk Corporation (1 from 2,430 patents)


1 patent:

1. 7883273 - Cage for roller bearing

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as of
12/8/2025
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