Growing community of inventors

Osaka, Japan

Hiroyuki Ootsuki

Average Co-Inventor Count = 2.86

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 = 39

Hiroyuki Ootsuki ↔ Masamitsu Uemura (1 patent)Hiroyuki Ootsuki ↔ Katashi Tanaka (1 patent)Hiroyuki Ootsuki ↔ Seiji Sakada (1 patent)Hiroyuki Ootsuki ↔ Yasuyuki Oyamada (1 patent)Hiroyuki Ootsuki ↔ Kiyoshi Yonekura (1 patent)Hiroyuki OotsukiHiroyuki Ootsuki (2 patents)Masamitsu UemuraMasamitsu Uemura (14 patents)Katashi TanakaKatashi Tanaka (7 patents)Seiji SakadaSeiji Sakada (7 patents)Yasuyuki OyamadaYasuyuki Oyamada (7 patents)Kiyoshi YonekuraKiyoshi Yonekura (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yanmar Co., Ltd. (2 from 651 patents)

2. Yanmar Construction Equipment Co., Ltd. (1 from 2 patents)


2 patents:

1. 7654188 - Hydraulic cylinder of outrigger

2. D590847 - Excavator

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as of
1/10/2026
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