Growing community of inventors

Chikugo, Japan

Hisayuki Ishii

Average Co-Inventor Count = 2.45

ph-index = 6

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 = 171

Hisayuki IshiiMasamitsu Uemura (5 patents)Hisayuki IshiiMasataka Miyoshi (4 patents)Hisayuki IshiiZenzo Uchida (3 patents)Hisayuki IshiiKiyoyuki Okuyama (2 patents)Hisayuki IshiiYoshihiro Hayami (2 patents)Hisayuki IshiiNozomi Sakaguchi (2 patents)Hisayuki IshiiYoshihito Hayama (2 patents)Hisayuki IshiiMasaru Shimada (2 patents)Hisayuki IshiiMasami Miyanishi (1 patent)Hisayuki IshiiMitsuyuki Hatanaka (1 patent)Hisayuki IshiiHiroyuki Otsuki (1 patent)Hisayuki IshiiKoichiro Matsuda (0 patent)Hisayuki IshiiTsukasa Ogawa (0 patent)Hisayuki IshiiHisayuki Ishii (7 patents)Masamitsu UemuraMasamitsu Uemura (14 patents)Masataka MiyoshiMasataka Miyoshi (6 patents)Zenzo UchidaZenzo Uchida (8 patents)Kiyoyuki OkuyamaKiyoyuki Okuyama (84 patents)Yoshihiro HayamiYoshihiro Hayami (4 patents)Nozomi SakaguchiNozomi Sakaguchi (4 patents)Yoshihito HayamaYoshihito Hayama (3 patents)Masaru ShimadaMasaru Shimada (2 patents)Masami MiyanishiMasami Miyanishi (8 patents)Mitsuyuki HatanakaMitsuyuki Hatanaka (7 patents)Hiroyuki OtsukiHiroyuki Otsuki (1 patent)Koichiro MatsudaKoichiro Matsuda (0 patent)Tsukasa OgawaTsukasa Ogawa (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yanmar Co., Ltd. (6 from 651 patents)

2. Yanmar Power Technology Co., Inc. (1 from 211 patents)

3. Nippon Flex Controls Corp. (0 patent)


7 patents:

1. 12129630 - Installation structure of electric component and hydraulic hose for working machine

2. D855082 - Excavator

3. D842344 - Excavator

4. D717346 - Excavator

5. D716844 - Excavator

6. D716845 - Excavator

7. D692924 - Excavator

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as of
1/4/2026
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