Growing community of inventors

Kanagawa, Japan

Tomoyuki Kirigane

Average Co-Inventor Count = 5.00

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 = 5

Tomoyuki Kirigane ↔ Kazuhiko Watanabe (1 patent)Tomoyuki Kirigane ↔ Hiroshi Nakai (1 patent)Tomoyuki Kirigane ↔ Hiroshi Mizusawa (1 patent)Tomoyuki Kirigane ↔ Yasuhide Nakazawa (1 patent)Tomoyuki KiriganeTomoyuki Kirigane (1 patent)Kazuhiko WatanabeKazuhiko Watanabe (111 patents)Hiroshi NakaiHiroshi Nakai (92 patents)Hiroshi MizusawaHiroshi Mizusawa (25 patents)Yasuhide NakazawaYasuhide Nakazawa (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ricoh Company, Ltd. (1 from 28,605 patents)


1 patent:

1. 10514651 - Cleaning blade, cleaning device, image forming apparatus, and process cartridge

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1/23/2026
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