Growing community of inventors

Kunitachi, Japan

Shigeru Ikeda

Average Co-Inventor Count = 2.25

ph-index = 4

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 = 98

Shigeru IkedaYoshio Oguma (2 patents)Shigeru IkedaNoboru Sasaki (1 patent)Shigeru IkedaShoji Ohshita (1 patent)Shigeru IkedaHisaya Umemoto (1 patent)Shigeru IkedaHideki Iwashita (1 patent)Shigeru IkedaTatsuo Kamada (1 patent)Shigeru IkedaYukihiko Takaishi (1 patent)Shigeru IkedaShin Takagi (1 patent)Shigeru IkedaHisao Matsumoto (1 patent)Shigeru IkedaYoshio Sakai (1 patent)Shigeru IkedaNatsuko Hiramatsu (1 patent)Shigeru IkedaShigeru Ikeda (6 patents)Yoshio OgumaYoshio Oguma (5 patents)Noboru SasakiNoboru Sasaki (10 patents)Shoji OhshitaShoji Ohshita (4 patents)Hisaya UmemotoHisaya Umemoto (1 patent)Hideki IwashitaHideki Iwashita (1 patent)Tatsuo KamadaTatsuo Kamada (1 patent)Yukihiko TakaishiYukihiko Takaishi (1 patent)Shin TakagiShin Takagi (1 patent)Hisao MatsumotoHisao Matsumoto (1 patent)Yoshio SakaiYoshio Sakai (1 patent)Natsuko HiramatsuNatsuko Hiramatsu (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. France Bed Co., Ltd. (6 from 57 patents)


6 patents:

1. 8915545 - Chair with rotatable backrest

2. 7152262 - Mattress apparatus

3. 7077415 - Hand-driven vehicle

4. 6324709 - Mattress apparatus and bed apparatus

5. 5632524 - Combination Chair

6. 5461737 - Mattress apparatus and method for manufacturing the same

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as of
12/15/2025
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