Growing community of inventors

Tokyo, Japan

Masakuni Okubo

Average Co-Inventor Count = 7.00

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 = 45

Masakuni Okubo ↔ Hiroshi Adachi (1 patent)Masakuni Okubo ↔ Akira Mochizuki (1 patent)Masakuni Okubo ↔ Hisato Katayama (1 patent)Masakuni Okubo ↔ Kouki Yamaguchi (1 patent)Masakuni Okubo ↔ Tadayoshi Muta (1 patent)Masakuni Okubo ↔ Masami Suzuki (1 patent)Masakuni OkuboMasakuni Okubo (1 patent)Hiroshi AdachiHiroshi Adachi (29 patents)Akira MochizukiAkira Mochizuki (4 patents)Hisato KatayamaHisato Katayama (1 patent)Kouki YamaguchiKouki Yamaguchi (1 patent)Tadayoshi MutaTadayoshi Muta (1 patent)Masami SuzukiMasami Suzuki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kajima Corporation (1 from 150 patents)


1 patent:

1. 4699640 - Clean room having partially different degree of cleanliness

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as of
12/11/2025
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