Idemitsu Kosan

Manufacturer, producer of petrochemical products, and fund of funds focused on deep sectors

placeTokyo, Tokyo, Japan calendar_todayFounded 1911 groups8,749 employees language idemitsu.com

Innovation

6,286 patent families (1,821 granted) — focus: Chemistry & metallurgy, Electricity & electronics, Operations & transport, Emerging technologies; filing pace steady. Cited 136,835 times.

YearFilings
2015649
2016598
2017542
2018547
2019491
2020518
2021536
2022606
2023609
2024679
2025641
2026171
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