Growing community of inventors

Tokyo, Japan

Shigeto Yamada

Average Co-Inventor Count = 3.16

ph-index = 3

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 = 23

Shigeto YamadaShinichi Iwama (3 patents)Shigeto YamadaMasahiro Fukuda (2 patents)Shigeto YamadaTomoyuki Amano (2 patents)Shigeto YamadaKeigi Tsugami (2 patents)Shigeto YamadaToshiaki Yoshikawa (1 patent)Shigeto YamadaKeiji Tsugami (1 patent)Shigeto YamadaNaoki Okamoto (1 patent)Shigeto YamadaShigeto Yamada (5 patents)Shinichi IwamaShinichi Iwama (16 patents)Masahiro FukudaMasahiro Fukuda (90 patents)Tomoyuki AmanoTomoyuki Amano (12 patents)Keigi TsugamiKeigi Tsugami (2 patents)Toshiaki YoshikawaToshiaki Yoshikawa (47 patents)Keiji TsugamiKeiji Tsugami (2 patents)Naoki OkamotoNaoki Okamoto (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Daiwa Seiko, Inc. (5 from 602 patents)


5 patents:

1. 6318654 - Spinning reel for fishing

2. 6220537 - Fishing spinning reel having smoothly shaped rail portion

3. 5265351 - Ski boot having a carrying hanger provided on an outer member thereof

4. 5125172 - Ski boot

5. 4977692 - Retention device for ski boot

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as of
1/2/2026
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