Growing community of inventors

Akishima, Japan

Hisaya Umemoto

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 = 17

Hisaya Umemoto ↔ Shigeru Ikeda (1 patent)Hisaya Umemoto ↔ Hisao Matsumoto (1 patent)Hisaya Umemoto ↔ Hideki Iwashita (1 patent)Hisaya Umemoto ↔ Shin Takagi (1 patent)Hisaya Umemoto ↔ Natsuko Hiramatsu (1 patent)Hisaya UmemotoHisaya Umemoto (1 patent)Shigeru IkedaShigeru Ikeda (6 patents)Hisao MatsumotoHisao Matsumoto (1 patent)Hideki IwashitaHideki Iwashita (1 patent)Shin TakagiShin Takagi (1 patent)Natsuko HiramatsuNatsuko Hiramatsu (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. France Bed Co., Ltd. (1 from 57 patents)


1 patent:

1. 5632524 - Combination Chair

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as of
12/17/2025
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