Growing community of inventors

Tokyo, Japan

Hiroyuki Nishiyama

Average Co-Inventor Count = 3.46

ph-index = 2

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 = 65

Hiroyuki NishiyamaSeigo Sawada (4 patents)Hiroyuki NishiyamaYoshikazu Tanaka (3 patents)Hiroyuki NishiyamaSeiji Tokuoka (3 patents)Hiroyuki NishiyamaTakanori Ogawa (2 patents)Hiroyuki NishiyamaMiyuki Uchida (2 patents)Hiroyuki NishiyamaMie Watanabe (1 patent)Hiroyuki NishiyamaRieko Ishihara (1 patent)Hiroyuki NishiyamaIkuhiro Tsumura (1 patent)Hiroyuki NishiyamaHongyang Guo (1 patent)Hiroyuki NishiyamaShizhong Zhu (1 patent)Hiroyuki NishiyamaToshiki Yamanishi (1 patent)Hiroyuki NishiyamaMasahiko Yoshimura (1 patent)Hiroyuki NishiyamaYuji Igawa (1 patent)Hiroyuki NishiyamaYohiyuki Hamauzu (1 patent)Hiroyuki NishiyamaShi Zhong Zhu (1 patent)Hiroyuki NishiyamaKazuya Kurihara (1 patent)Hiroyuki NishiyamaYoshiyuki Hamauzu (0 patent)Hiroyuki NishiyamaHiroyuki Nishiyama (8 patents)Seigo SawadaSeigo Sawada (25 patents)Yoshikazu TanakaYoshikazu Tanaka (74 patents)Seiji TokuokaSeiji Tokuoka (3 patents)Takanori OgawaTakanori Ogawa (8 patents)Miyuki UchidaMiyuki Uchida (3 patents)Mie WatanabeMie Watanabe (6 patents)Rieko IshiharaRieko Ishihara (5 patents)Ikuhiro TsumuraIkuhiro Tsumura (5 patents)Hongyang GuoHongyang Guo (3 patents)Shizhong ZhuShizhong Zhu (3 patents)Toshiki YamanishiToshiki Yamanishi (2 patents)Masahiko YoshimuraMasahiko Yoshimura (2 patents)Yuji IgawaYuji Igawa (1 patent)Yohiyuki HamauzuYohiyuki Hamauzu (1 patent)Shi Zhong ZhuShi Zhong Zhu (1 patent)Kazuya KuriharaKazuya Kurihara (1 patent)Yoshiyuki HamauzuYoshiyuki Hamauzu (0 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Yakult Honsha (4 from 210 patents)

2. Ricoh Company, Ltd. (3 from 28,544 patents)

3. Nihon Kohden Corporation (1 from 551 patents)


8 patents:

1. 9317234 - Computer readable information recording medium storing preview display program, preview display apparatus and preview display method

2. 9211399 - Disposable electrode and automatic information recognition apparatus

3. 9075547 - Print system, print job creating device, print job creating method, and recording medium

4. 8958106 - Japanese hyphenation processing program, apparatus, method, and printing system

5. 8466287 - Process for producing tricyclic ketone

6. 8067595 - Process for producing tricyclic ketone

7. 7378555 - Method of synthesizing camptothecin-relating compounds

8. 7126000 - Method of synthesizing camptothecin-relating compounds

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as of
12/6/2025
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